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1. Model-independent Approach of the JUNO 8B Solar Neutrino Program

Author

Jie Zhao, Baobiao Yue, Haoqi Lu, Yufeng Li, Jiajie Ling, Zeyuan Yu, Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Abid Aleem, Tsagkarakis Alexandros, Fengpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Weidong Bai, Nikita Balashov, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Antonio Bergnoli, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Jose Busto, Ilya Butorov, Anatael Cabrera, Barbara Caccianiga, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Riccardo Callegari, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Chi Chan, Jinfan Chang, Yun Chang, Guoming Chen, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yixue Chen, Yu Chen, Zhiyuan Chen, Zikang Chen, Jie Cheng, Yaping Cheng, Alexander Chepurnov, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Marta Colomer Molla, Selma Conforti Di Lorenzo, Daniele Corti, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Ran Du, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Donghua Fan, Lei Fan, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Zhengyong Fei, Li-Cheng Feng, Qichun Feng, Richard Ford, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Arsenii Gavrikov, Marco Giammarchi, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Maxim Gromov, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Yuduo Guan, Nunzio Guardone, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Yuxiang Hu, Zhuojun Hu, Guihong Huang, Hanxiong Huang, Kaixuan Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Ignacio Jeria, Xiaolu Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Wei Jiang, Xiaoshan Jiang, Xiaoping Jing, Cécile Jollet, Leonidas Kalousis, Philipp Kampmann, Li Kang, Rebin Karaparambil, Narine Kazarian, Amina Khatun, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Daozheng Li, Demin Li, Fei Li, Fule Li, Gaosong Li, Huiling Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Rui Li, Shanfeng Li, Tao Li, Teng Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yichen Li, Zepeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Zonghai Li, Hao Liang, Jiajun Liao, Ayut Limphirat, Guey-Lin Lin, Shengxin Lin, Tao Lin, Ivano Lippi, Fang Liu, Haidong Liu, Haotian Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Arslan Lukanov, Daibin Luo, Fengjiao Luo, Guang Luo, Shu Luo, Wuming Luo, Xiaojie Luo, Vladimir Lyashuk, Bangzheng Ma, Bing Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Jingyu Mai, Yury Malyshkin, Roberto Carlos Mandujano, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Matthias Mayer, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Paolo Montini, Michele Montuschi, Axel Müller, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Minh Thuan Nguyen Thi, Alexey Nikolaev, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Alessandro Paoloni, Sergio Parmeggiano, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Yu Peng, Zhaoyuan Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Mariia Redchuk, Bin Ren, Jie Ren, Barbara Ricci, Mariam Rifai, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Xichao Ruan, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Simone Sanfilippo, Anut Sangka, Utane Sawangwit, Julia Sawatzki, Michaela Schever, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Jun Su, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Zhengyang Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Marco Danilo Claudio Torri, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Cornelius Moritz Vollbrecht, Cristina Volpe, Katharina von Sturm, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Apimook Watcharangkool, Wei Wei, Wenlu Wei, Yadong Wei, Kaile Wen, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Qun Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Xiang Xiao, Xiaochuan Xie, Yuguang Xie, Zhangquan Xie, Zhao Xin, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Changgen Yang, Chengfeng Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Jiaxuan Ye, Mei Ye, Ziping Ye, Frédéric Yermia, Na Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zezhong Yu, Cenxi Yuan, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Noman Zafar, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Bin Zhang, Binting Zhang, Feiyang Zhang, Guoqing Zhang, Honghao Zhang, Jialiang Zhang, Jiawen Zhang, Jie Zhang, Jin Zhang, Jingbo Zhang, Jinnan Zhang, Mohan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xin Zhang, Xuantong Zhang, Xueyao Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yu Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Rong Zhao, Runze Zhao, Shujun Zhao, Dongqin Zheng, Hua Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Jingsen Zhu, Kangfu Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, and Jiaheng Zou

Subjects
Solar neutrinos, Astrophysics, QB460-466
Abstract

The physics potential of detecting ^8 B solar neutrinos will be exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model-independent manner by using three distinct channels of the charged current (CC), neutral current (NC), and elastic scattering (ES) interactions. Due to the largest-ever mass of ^13 C nuclei in the liquid scintillator detectors and the expected low background level, ^8 B solar neutrinos are observable in the CC and NC interactions on ^13 C for the first time. By virtue of optimized event selections and muon veto strategies, backgrounds from the accidental coincidence, muon-induced isotopes, and external backgrounds can be greatly suppressed. Excellent signal-to-background ratios can be achieved in the CC, NC, and ES channels to guarantee the observation of the ^8 B solar neutrinos. From the sensitivity studies performed in this work, we show that JUNO, with 10 yr of data, can reach the 1 σ precision levels of 5%, 8%, and 20% for the ^8 B neutrino flux, ${\sin }^{2}{\theta }_{12}$ , and ${\rm{\Delta }}{m}_{21}^{2}$ , respectively. Probing the details of both solar physics and neutrino physics would be unique and helpful. In addition, when combined with the Sudbury Neutrino Observatory measurement, the world's best precision of 3% is expected for the measurement of the ^8 B neutrino flux.

Published
2024
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2. Mass testing and characterization of 20-inch PMTs for JUNO

Author

Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Abid Aleem, Tsagkarakis Alexandros, Fengpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Weidong Bai, Nikita Balashov, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Antonio Bergnoli, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Jose Busto, Ilya Butorov, Anatael Cabrera, Barbara Caccianiga, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Riccardo Callegari, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Chi Chan, Jinfan Chang, Yun Chang, Guoming Chen, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yixue Chen, Yu Chen, Zhiyuan Chen, Zikang Chen, Jie Cheng, Yaping Cheng, Yu Chin Cheng, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Marta Colomer Molla, Selma Conforti Di Lorenzo, Daniele Corti, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Ran Du, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Donghua Fan, Lei Fan, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Zhengyong Fei, Li-Cheng Feng, Qichun Feng, Richard Ford, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Arsenii Gavrikov, Marco Giammarchi, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Yuduo Guan, Nunzio Guardone, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Yuxiang Hu, Zhuojun Hu, Guihong Huang, Hanxiong Huang, Kaixuan Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Ignacio Jeria, Xiaolu Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Wei Jiang, Xiaoshan Jiang, Xiaoping Jing, Cécile Jollet, Jari Joutsenvaara, Leonidas Kalousis, Philipp Kampmann, Li Kang, Rebin Karaparambil, Narine Kazarian, Amina Khatun, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Daozheng Li, Demin Li, Fei Li, Fule Li, Gaosong Li, Huiling Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Rui Li, Shanfeng Li, Tao Li, Teng Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yichen Li, Yufeng Li, Zepeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Zonghai Li, Hao Liang, Jiajun Liao, Ayut Limphirat, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Haotian Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Arslan Lukanov, Daibin Luo, Fengjiao Luo, Guang Luo, Shu Luo, Wuming Luo, Xiaojie Luo, Vladimir Lyashuk, Bangzheng Ma, Bing Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Jingyu Mai, Yury Malyshkin, Roberto Carlos Mandujano, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Matthias Mayer, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Paolo Montini, Michele Montuschi, Axel Müller, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Minh Thuan Nguyen Thi, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Alessandro Paoloni, Sergio Parmeggiano, Yatian Pei, Luca Pelicci, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Yu Peng, Zhaoyuan Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Mariia Redchuk, Bin Ren, Jie Ren, Barbara Ricci, Mariam Rifai, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Xichao Ruan, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Simone Sanfilippo, Anut Sangka, Utane Sawangwit, Julia Sawatzki, Michaela Schever, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Jun Su, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Zhengyang Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Eric Theisen, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Marco Danilo Claudio Torri, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Cornelius Moritz Vollbrecht, Cristina Volpe, Katharina von Sturm, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Apimook Watcharangkool, Wei Wei, Wenlu Wei, Yadong Wei, Kaile Wen, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Qun Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Xiang Xiao, Xiaochuan Xie, Yuguang Xie, Zhangquan Xie, Zhao Xin, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Changgen Yang, Chengfeng Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Jiaxuan Ye, Mei Ye, Ziping Ye, Frédéric Yermia, Na Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Zezhong Yu, Cenxi Yuan, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Baobiao Yue, Noman Zafar, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Bin Zhang, Binting Zhang, Feiyang Zhang, Guoqing Zhang, Honghao Zhang, Jialiang Zhang, Jiawen Zhang, Jie Zhang, Jin Zhang, Jingbo Zhang, Jinnan Zhang, Mohan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xin Zhang, Xuantong Zhang, Xueyao Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yu Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Runze Zhao, Shujun Zhao, Dongqin Zheng, Hua Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Jingsen Zhu, Kangfu Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, Jiaheng Zou, and JUNO Collaboration

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20 kt liquid-scintillator detector. Its key feature is an excellent energy resolution of at least 3% at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNO after a detailed testing program which began in 2017 and elapsed for about four years. Based on this mass characterization and a set of specific requirements, a good quality of all accepted PMTs could be ascertained. This paper presents the performed testing procedure with the designed testing systems as well as the statistical characteristics of all 20-inch PMTs intended to be used in the JUNO experiment, covering more than fifteen performance parameters including the photocathode uniformity. This constitutes the largest sample of 20-inch PMTs ever produced and studied in detail to date, i.e. 15,000 of the newly developed 20-inch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK).

Published
2022
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3. Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment

Author

The JUNO collaboration, Jun Wang, Jiajun Liao, Wei Wang, Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Fengpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Andrej Babic, Nikita Balashov, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Antonio Bergnoli, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Mario Buscemi, Jose Busto, Ilya Butorov, Anatael Cabrera, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Riccardo Callegari, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Jinfan Chang, Yun Chang, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yi-Wen Chen, Yixue Chen, Yu Chen, Zhang Chen, Jie Cheng, Yaping Cheng, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Selma Conforti Di Lorenzo, Daniele Corti, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Jiawei Deng, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Ran Du, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Lukas Fajt, Donghua Fan, Lei Fan, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Vladko Fekete, Li-Cheng Feng, Qichun Feng, Richard Ford, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Arsenii Gavrikov, Marco Giammarchi, Agnese Giaz, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Christian Grewing, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Nunzio Guardone, Maria Gul, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Muhammad Sohaib Hassan, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Zhuojun Hu, Chunhao Huang, Guihong Huang, Hanxiong Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Kuo-Lun Jen, Ignacio Jeria, Xiaolu Ji, Xingzhao Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Wei Jiang, Xiaoshan Jiang, Ruyi Jin, Xiaoping Jing, Cécile Jollet, Jari Joutsenvaara, Sirichok Jungthawan, Leonidas Kalousis, Philipp Kampmann, Li Kang, Rebin Karaparambil, Narine Kazarian, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Andre Kruth, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Demin Li, Fei Li, Fule Li, Haitao Li, Huiling Li, Jiaqi Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Shanfeng Li, Tao Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yufeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Hao Liang, Daniel Liebau, Ayut Limphirat, Sukit Limpijumnong, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shuangyu Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Xiaoxu Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Arslan Lukanov, Fengjiao Luo, Guang Luo, Pengwei Luo, Shu Luo, Wuming Luo, Vladimir Lyashuk, Bangzheng Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Yury Malyshkin, Roberto Carlos Mandujano, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Sadia Marium, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Matthias Mayer, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Paolo Montini, Michele Montuschi, Axel Müller, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Minh Thuan Nguyen Thi, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Hsiao-Ru Pan, Alessandro Paoloni, Sergio Parmeggiano, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Wathan Pratumwan, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Muhammad Usman Rajput, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Bin Ren, Jie Ren, Barbara Ricci, Markus Robens, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Christian Roth, Xiangdong Ruan, Xichao Ruan, Saroj Rujirawat, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Simone Sanfilippo, Anut Sangka, Nuanwan Sanguansak, Utane Sawangwit, Julia Sawatzki, Fatma Sawy, Michaela Schever, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Marco Danilo Claudio Torri, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Johannes van den Boom, Stefan van Waasen, Guillaume Vanroyen, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Cornelius Moritz Vollbrecht, Cristina Volpe, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Kunyu Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Muhammad Waqas, Apimook Watcharangkool, Lianghong Wei, Wei Wei, Wenlu Wei, Yadong Wei, Kaile Wen, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Qun Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Xiaochuan Xie, Yuguang Xie, Zhangquan Xie, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Anbo Yang, Changgen Yang, Chengfeng Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Zafar Yasin, Jiaxuan Ye, Mei Ye, Ziping Ye, Ugur Yegin, Frédéric Yermia, Peihuai Yi, Na Yin, Xiangwei Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Zezhong Yu, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Ziyi Yuan, Baobiao Yue, Noman Zafar, Andre Zambanini, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Feiyang Zhang, Guoqing Zhang, Haiqiong Zhang, Honghao Zhang, Jiawen Zhang, Jie Zhang, Jin Zhang, Jingbo Zhang, Jinnan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xuantong Zhang, Xueyao Zhang, Yan Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Shujun Zhao, Tianchi Zhao, Dongqin Zheng, Hua Zheng, Minshan Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Kangfu Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, and Jiaheng Zou

Subjects
Neutrino Detectors and Telescopes (experiments), Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These damping signatures are motivated by various new physics models, including quantum decoherence, ν 3 decay, neutrino absorption, and wave packet decoherence. The phenomenological effects of these models can be characterized by exponential damping factors at the probability level. We assess how well JUNO can constrain these damping parameters and how to disentangle these different damping signatures at JUNO. Compared to current experimental limits, JUNO can significantly improve the limits on τ 3/m 3 in the ν 3 decay model, the width of the neutrino wave packet σ x , and the intrinsic relative dispersion of neutrino momentum σ rel.

Published
2022
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4. The design and sensitivity of JUNO’s scintillator radiopurity pre-detector OSIRIS

Author

Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Fengpeng An, Guangpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Andrej Babic, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Antonio Bergnoli, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Mario Buscemi, Jose Busto, Ilya Butorov, Anatael Cabrera, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Jinfan Chang, Yun Chang, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yi-Wen Chen, Yixue Chen, Yu Chen, Zhang Chen, Jie Cheng, Yaping Cheng, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Selma Conforti Di Lorenzo, Daniele Corti, Salvatore Costa, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Jiawei Deng, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Lukas Fajt, Donghua Fan, Lei Fan, Can Fang, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Vladko Fekete, Li-Cheng Feng, Qichun Feng, Richard Ford, Andrey Formozov, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Christoph Genster, Marco Giammarchi, Agnese Giaz, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Christian Grewing, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Nunzio Guardone, Maria Gul, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Muhammad Sohaib Hassan, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, Daojin Hong, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Zhuojun Hu, Chunhao Huang, Guihong Huang, Hanxiong Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Kuo-Lun Jen, Ignacio Jeria, Xiaolu Ji, Xingzhao Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Xiaoshan Jiang, Ruyi Jin, Xiaoping Jing, Cécile Jollet, Jari Joutsenvaara, Sirichok Jungthawan, Leonidas Kalousis, Philipp Kampmann, Li Kang, Michael Karagounis, Narine Kazarian, Waseem Khan, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Andre Kruth, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Demin Li, Fei Li, Fule Li, Haitao Li, Huiling Li, Jiaqi Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Shanfeng Li, Tao Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yufeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Hao Liang, Jingjing Liang, Jiajun Liao, Daniel Liebau, Ayut Limphirat, Sukit Limpijumnong, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shuangyu Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Xiaoxu Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Fengjiao Luo, Guang Luo, Pengwei Luo, Shu Luo, Wuming Luo, Vladimir Lyashuk, Bangzheng Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Yury Malyshkin, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Sadia Marium, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Paolo Montini, Michele Montuschi, Axel Müller, Pavithra Muralidharan, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, MinhThuan NguyenThi, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Hsiao-Ru Pan, Alessandro Paoloni, Nina Parkalian, Sergio Parmeggiano, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Wathan Pratumwan, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Muhammad Usman Rajput, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Bin Ren, Jie Ren, Barbara Ricci, Markus Robens, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Christian Roth, Xiangdong Ruan, Xichao Ruan, Saroj Rujirawat, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Simone Sanfilippo, Anut Sangka, Nuanwan Sanguansak, Utane Sawangwit, Julia Sawatzki, Fatma Sawy, Michaela Schever, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Gongxing Sun, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Johannes van den Boom, Stefan van Waasen, Guillaume Vanroyen, Nikolaos Vassilopoulos, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Cornelius Vollbrecht, Cristina Volpe, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Kunyu Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Muhammad Waqas, Apimook Watcharangkool, Lianghong Wei, Wei Wei, Wenlu Wei, Yadong Wei, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Fangliang Wu, Qun Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Yuguang Xie, Zhangquan Xie, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Anbo Yang, Changgen Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Zafar Yasin, Jiaxuan Ye, Mei Ye, Ziping Ye, Ugur Yegin, Frédéric Yermia, Peihuai Yi, Na Yin, Xiangwei Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Zezhong Yu, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Ziyi Yuan, Baobiao Yue, Noman Zafar, Andre Zambanini, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Feiyang Zhang, Guoqing Zhang, Haiqiong Zhang, Honghao Zhang, Jiawen Zhang, Jie Zhang, Jingbo Zhang, Jinnan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xuantong Zhang, Xueyao Zhang, Yan Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Shujun Zhao, Tianchi Zhao, Dongqin Zheng, Hua Zheng, Minshan Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Kangpu Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, Jiaheng Zou, and JUNO Collaboration

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The OSIRIS detector is a subsystem of the liquid scintillator filling chain of the JUNO reactor neutrino experiment. Its purpose is to validate the radiopurity of the scintillator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scintillator is filled into the JUNO Central Detector. The aspired sensitivity level of $$10^{-16}\hbox { g/g}$$ 10 - 16 g/g of $$^{238}\hbox {U}$$ 238 U and $$^{232}\hbox {Th}$$ 232 Th requires a large ( $$\sim 20\,\hbox {m}^3$$ ∼ 20 m 3 ) detection volume and ultralow background levels. The present paper reports on the design and major components of the OSIRIS detector, the detector simulation as well as the measuring strategies foreseen and the sensitivity levels to U/Th that can be reached in this setup.

Published
2021
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5. Radioactivity control strategy for the JUNO detector

Author

The JUNO collaboration, Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Fengpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Andrej Babic, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Antonio Bergnoli, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Mario Buscemi, Jose Busto, Ilya Butorov, Anatael Cabrera, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Jinfan Chang, Yun Chang, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yi-Wen Chen, Yixue Chen, Yu Chen, Zhang Chen, Jie Cheng, Yaping Cheng, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Selma Conforti Di Lorenzo, Daniele Corti, Oliviero Cremonesi, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Jiawei Deng, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Lukas Fajt, Donghua Fan, Lei Fan, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Vladko Fekete, Li-Cheng Feng, Qichun Feng, Richard Ford, Andrey Formozov, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Marco Giammarchi, Agnese Giaz, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Christian Grewing, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Nunzio Guardone, Maria Gul, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Muhammad Sohaib Hassan, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Zhuojun Hu, Chunhao Huang, Guihong Huang, Hanxiong Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Kuo-Lun Jen, Ignacio Jeria, Xiaolu Ji, Xingzhao Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Xiaoshan Jiang, Ruyi Jin, Xiaoping Jing, Cécile Jollet, Jari Joutsenvaara, Sirichok Jungthawan, Leonidas Kalousis, Philipp Kampmann, Li Kang, Rebin Karaparambil, Narine Kazarian, Waseem Khan, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Andre Kruth, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Demin Li, Fei Li, Fule Li, Haitao Li, Huiling Li, Jiaqi Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Shanfeng Li, Tao Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yufeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Hao Liang, Jiajun Liao, Daniel Liebau, Ayut Limphirat, Sukit Limpijumnong, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shuangyu Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Xiaoxu Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Fengjiao Luo, Guang Luo, Pengwei Luo, Shu Luo, Wuming Luo, Vladimir Lyashuk, Bangzheng Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Yury Malyshkin, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Sadia Marium, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Matthias Mayer, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Paolo Montini, Michele Montuschi, Axel Müller, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Minh Thuan Nguyen Thi, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Hsiao-Ru Pan, Alessandro Paoloni, Sergio Parmeggiano, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Wathan Pratumwan, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Muhammad Usman Rajput, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Bin Ren, Jie Ren, Barbara Ricci, Markus Robens, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Christian Roth, Xiangdong Ruan, Xichao Ruan, Saroj Rujirawat, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Simone Sanfilippo, Anut Sangka, Nuanwan Sanguansak, Utane Sawangwit, Julia Sawatzki, Fatma Sawy, Michaela Schever, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Johannes van den Boom, Stefan van Waasen, Guillaume Vanroyen, Nikolaos Vassilopoulos, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Moritz Cornelius Vollbrecht, Cristina Volpe, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Kunyu Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Muhammad Waqas, Apimook Watcharangkool, Lianghong Wei, Wei Wei, Wenlu Wei, Yadong Wei, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Fangliang Wu, Qun Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Xiaochuan Xie, Yuguang Xie, Zhangquan Xie, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Anbo Yang, Changgen Yang, Chengfeng Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Zafar Yasin, Jiaxuan Ye, Mei Ye, Ziping Ye, Ugur Yegin, Frédéric Yermia, Peihuai Yi, Na Yin, Xiangwei Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Zezhong Yu, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Ziyi Yuan, Baobiao Yue, Noman Zafar, Andre Zambanini, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Feiyang Zhang, Guoqing Zhang, Haiqiong Zhang, Honghao Zhang, Jiawen Zhang, Jie Zhang, Jin Zhang, Jingbo Zhang, Jinnan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xuantong Zhang, Xueyao Zhang, Yan Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Shujun Zhao, Tianchi Zhao, Dongqin Zheng, Hua Zheng, Minshan Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Kangfu Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, and Jiaheng Zou

Subjects
Neutrino Detectors and Telescopes (experiments), Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract JUNO is a massive liquid scintillator detector with a primary scientific goal of determining the neutrino mass ordering by studying the oscillated anti-neutrino flux coming from two nuclear power plants at 53 km distance. The expected signal anti-neutrino interaction rate is only 60 counts per day (cpd), therefore a careful control of the background sources due to radioactivity is critical. In particular, natural radioactivity present in all materials and in the environment represents a serious issue that could impair the sensitivity of the experiment if appropriate countermeasures were not foreseen. In this paper we discuss the background reduction strategies undertaken by the JUNO collaboration to reduce at minimum the impact of natural radioactivity. We describe our efforts for an optimized experimental design, a careful material screening and accurate detector production handling, and a constant control of the expected results through a meticulous Monte Carlo simulation program. We show that all these actions should allow us to keep the background count rate safely below the target value of 10 Hz (i.e. ∼1 cpd accidental background) in the default fiducial volume, above an energy threshold of 0.7 MeV.

Published
2021
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6. JUNO sensitivity to low energy atmospheric neutrino spectra

Author

Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Fengpeng An, Guangpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Andrej Babic, Wander Baldini, Andrea Barresi, Eric Baussan, Marco Bellato, Antonio Bergnoli, Enrico Bernieri, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Mario Buscemi, Jose Busto, Ilya Butorov, Anatael Cabrera, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Jinfan Chang, Yun Chang, Pingping Chen, Po-An Chen, Shaomin Chen, Xurong Chen, Yi-Wen Chen, Yixue Chen, Yu Chen, Zhang Chen, Jie Cheng, Yaping Cheng, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Selma Conforti Di Lorenzo, Daniele Corti, Salvatore Costa, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Jiawei Deng, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Dmitry Dolzhikov, Georgy Donchenko, Jianmeng Dong, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Lukas Fajt, Donghua Fan, Lei Fan, Can Fang, Jian Fang, Wenxing Fang, Marco Fargetta, Dmitry Fedoseev, Vladko Fekete, Li-Cheng Feng, Qichun Feng, Richard Ford, Andrey Formozov, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Christoph Genster, Marco Giammarchi, Agnese Giaz, Nunzio Giudice, Maxim Gonchar, Guanghua Gong, Hui Gong, Oleg Gorchakov, Yuri Gornushkin, Alexandre Göttel, Marco Grassi, Christian Grewing, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Nunzio Guardone, Maria Gul, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Muhammad Sohaib Hassan, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, Daojin Hong, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Zhuojun Hu, Chunhao Huang, Guihong Huang, Hanxiong Huang, Qinhua Huang, Wenhao Huang, Xin Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Antonio Insolia, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Kuo-Lun Jen, Ignacio Jeria, Xiaolu Ji, Xingzhao Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Xiaoshan Jiang, Ruyi Jin, Xiaoping Jing, Cécile Jollet, Sirichok Jungthawan, Leonidas Kalousis, Philipp Kampmann, Li Kang, Michael Karagounis, Narine Kazarian, Waseem Khan, Khanchai Khosonthongkee, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Zinovy Krumshteyn, Andre Kruth, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Demin Li, Fei Li, Fule Li, Haitao Li, Huiling Li, Jiaqi Li, Mengzhao Li, Min Li, Nan Li, Qingjiang Li, Ruhui Li, Shanfeng Li, Tao Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yufeng Li, Zhaohan Li, Zhibing Li, Ziyuan Li, Hao Liang, Jingjing Liang, Daniel Liebau, Ayut Limphirat, Sukit Limpijumnong, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shuangyu Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Xiwen Liu, Yan Liu, Yunzhe Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Xiaoxu Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Fengjiao Luo, Guang Luo, Pengwei Luo, Shu Luo, Wuming Luo, Vladimir Lyashuk, Bangzheng Ma, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Yury Malyshkin, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Sadia Marium, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Davit Mayilyan, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Salvatore Monforte, Paolo Montini, Michele Montuschi, Axel Müller, Pavithra Muralidharan, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Minh Thuan Nguyen Thi, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Rainer Othegraven, Hsiao-Ru Pan, Alessandro Paoloni, Nina Parkalian, Sergio Parmeggiano, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Oliver Pilarczyk, Luis Felipe Piñeres Rico, Artyom Popov, Pascal Poussot, Wathan Pratumwan, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Zhen Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Muhammad Usman Rajput, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Bin Ren, Jie Ren, Taras Rezinko, Barbara Ricci, Markus Robens, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Christian Roth, Xiangdong Ruan, Xichao Ruan, Saroj Rujirawat, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Giuseppe Salamanna, Simone Sanfilippo, Anut Sangka, Nuanwan Sanguansak, Utane Sawangwit, Julia Sawatzki, Fatma Sawy, Michaela Schever, Jacky Schuler, Cédric Schwab, Konstantin Schweizer, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Arina Shaydurova, Jingyan Shi, Yanan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Sergey Sokolov, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondřej Šrámek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Gongxing Sun, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Nikita Ushakov, Johannes van den Boom, Stefan van Waasen, Guillaume Vanroyen, Nikolaos Vassilopoulos, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Moritz Cornelius Vollbrecht, Cristina Volpe, Vit Vorobel, Dmitriy Voronin, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Kunyu Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Muhammad Waqas, Apimook Watcharangkool, Lianghong Wei, Wei Wei, Wenlu Wei, Yadong Wei, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Fangliang Wu, Qun Wu, Wenjie Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Yuguang Xie, Zhangquan Xie, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Hangkun Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Taylor Yan, Wenqi Yan, Xiongbo Yan, Yupeng Yan, Anbo Yang, Changgen Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Zafar Yasin, Jiaxuan Ye, Mei Ye, Ziping Ye, Ugur Yegin, Frédéric Yermia, Peihuai Yi, Na Yin, Xiangwei Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Zezhong Yu, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Ziyi Yuan, Baobiao Yue, Noman Zafar, Andre Zambanini, Vitalii Zavadskyi, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Aiqiang Zhang, Feiyang Zhang, Guoqing Zhang, Haiqiong Zhang, Honghao Zhang, Jiawen Zhang, Jie Zhang, Jingbo Zhang, Jinnan Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xuantong Zhang, Xueyao Zhang, Yan Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Shujun Zhao, Tianchi Zhao, Dongqin Zheng, Hua Zheng, Minshan Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Tong Zhou, Xiang Zhou, Jiang Zhu, Kejun Zhu, Zhihang Zhu, Bo Zhuang, Honglin Zhuang, Liang Zong, Jiaheng Zou, and The JUNO Collaboration

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract Atmospheric neutrinos are one of the most relevant natural neutrino sources that can be exploited to infer properties about cosmic rays and neutrino oscillations. The Jiangmen Underground Neutrino Observatory (JUNO) experiment, a 20 kton liquid scintillator detector with excellent energy resolution is currently under construction in China. JUNO will be able to detect several atmospheric neutrinos per day given the large volume. A study on the JUNO detection and reconstruction capabilities of atmospheric $$\nu _e$$ ν e and $$\nu _\mu $$ ν μ fluxes is presented in this paper. In this study, a sample of atmospheric neutrino Monte Carlo events has been generated, starting from theoretical models, and then processed by the detector simulation. The excellent timing resolution of the 3” PMT light detection system of JUNO detector and the much higher light yield for scintillation over Cherenkov allow to measure the time structure of the scintillation light with very high precision. Since $$\nu _e$$ ν e and $$\nu _\mu $$ ν μ interactions produce a slightly different light pattern, the different time evolution of light allows to discriminate the flavor of primary neutrinos. A probabilistic unfolding method has been used, in order to infer the primary neutrino energy spectrum from the detector experimental observables. The simulated spectrum has been reconstructed between 100 MeV and 10 GeV, showing a great potential of the detector in the atmospheric low energy region.

Published
2021
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7. Calibration strategy of the JUNO experiment

Author

The JUNO collaboration, Angel Abusleme, Thomas Adam, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Muhammad Akram, Fengpeng An, Guangpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, Burin Asavapibhop, João Pedro Athayde Marcondes de André, Didier Auguste, Andrej Babic, Wander Baldini, Andrea Barresi, Eric Baussan, Marco Bellato, Antonio Bergnoli, Enrico Bernieri, Thilo Birkenfeld, Sylvie Blin, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Mario Buscemi, Jose Busto, Ilya Butorov, Anatael Cabrera, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Jinfan Chang, Yun Chang, Pingping Chen, Po-An Chen, Shaomin Chen, Shenjian Chen, Xurong Chen, Yi-Wen Chen, Yixue Chen, Yu Chen, Zhang Chen, Jie Cheng, Yaping Cheng, Davide Chiesa, Pietro Chimenti, Artem Chukanov, Anna Chuvashova, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Selma Conforti Di Lorenzo, Daniele Corti, Salvatore Costa, Flavio Dal Corso, Olivia Dalager, Christophe De La Taille, Jiawei Deng, Zhi Deng, Ziyan Deng, Wilfried Depnering, Marco Diaz, Xuefeng Ding, Yayun Ding, Bayu Dirgantara, Sergey Dmitrievsky, Tadeas Dohnal, Georgy Donchenko, Jianmeng Dong, Damien Dornic, Evgeny Doroshkevich, Marcos Dracos, Frédéric Druillole, Shuxian Du, Stefano Dusini, Martin Dvorak, Timo Enqvist, Heike Enzmann, Andrea Fabbri, Lukas Fajt, Donghua Fan, Lei Fan, Can Fang, Jian Fang, Marco Fargetta, Anna Fatkina, Dmitry Fedoseev, Vladko Fekete, Li-Cheng Feng, Qichun Feng, Richard Ford, Andrey Formozov, Amélie Fournier, Haonan Gan, Feng Gao, Alberto Garfagnini, Alexandre Göttel, Christoph Genster, Marco Giammarchi, Agnese Giaz, Nunzio Giudice, Franco Giuliani, Maxim Gonchar, Guanghua Gong, Hui Gong, Oleg Gorchakov, Yuri Gornushkin, Marco Grassi, Christian Grewing, Vasily Gromov, Minghao Gu, Xiaofei Gu, Yu Gu, Mengyun Guan, Nunzio Guardone, Maria Gul, Cong Guo, Jingyuan Guo, Wanlei Guo, Xinheng Guo, Yuhang Guo, Paul Hackspacher, Caren Hagner, Ran Han, Yang Han, Muhammad Hassan, Miao He, Wei He, Tobias Heinz, Patrick Hellmuth, Yuekun Heng, Rafael Herrera, Daojin Hong, YuenKeung Hor, Shaojing Hou, Yee Hsiung, Bei-Zhen Hu, Hang Hu, Jianrun Hu, Jun Hu, Shouyang Hu, Tao Hu, Zhuojun Hu, Chunhao Huang, Guihong Huang, Hanxiong Huang, Qinhua Huang, Wenhao Huang, Xingtao Huang, Yongbo Huang, Jiaqi Hui, Lei Huo, Wenju Huo, Cédric Huss, Safeer Hussain, Antonio Insolia, Ara Ioannisian, Roberto Isocrate, Beatrice Jelmini, Kuo-Lun Jen, Xiaolu Ji, Xingzhao Ji, Huihui Jia, Junji Jia, Siyu Jian, Di Jiang, Xiaoshan Jiang, Ruyi Jin, Xiaoping Jing, Cécile Jollet, Jari Joutsenvaara, Sirichok Jungthawan, Leonidas Kalousis, Philipp Kampmann, Li Kang, Michael Karagounis, Narine Kazarian, Amir Khan, Waseem Khan, Khanchai Khosonthongkee, Patrick Kinz, Denis Korablev, Konstantin Kouzakov, Alexey Krasnoperov, Svetlana Krokhaleva, Zinovy Krumshteyn, Andre Kruth, Nikolay Kutovskiy, Pasi Kuusiniemi, Tobias Lachenmaier, Cecilia Landini, Sébastien Leblanc, Victor Lebrin, Frederic Lefevre, Ruiting Lei, Rupert Leitner, Jason Leung, Demin Li, Fei Li, Fule Li, Haitao Li, Huiling Li, Jiaqi Li, Jin Li, Kaijie Li, Mengzhao Li, Nan Li, Qingjiang Li, Ruhui Li, Shanfeng Li, Shuaijie Li, Tao Li, Weidong Li, Weiguo Li, Xiaomei Li, Xiaonan Li, Xinglong Li, Yi Li, Yufeng Li, Zhibing Li, Ziyuan Li, Hao Liang, Jingjing Liang, Daniel Liebau, Ayut Limphirat, Sukit Limpijumnong, Guey-Lin Lin, Shengxin Lin, Tao Lin, Jiajie Ling, Ivano Lippi, Fang Liu, Haidong Liu, Hongbang Liu, Hongjuan Liu, Hongtao Liu, Hu Liu, Hui Liu, Jianglai Liu, Jinchang Liu, Min Liu, Qian Liu, Qin Liu, Runxuan Liu, Shuangyu Liu, Shubin Liu, Shulin Liu, Xiaowei Liu, Yan Liu, Alexey Lokhov, Paolo Lombardi, Claudio Lombardo, Kai Loo, Chuan Lu, Haoqi Lu, Jingbin Lu, Junguang Lu, Shuxiang Lu, Xiaoxu Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Livia Ludhova, Fengjiao Luo, Guang Luo, Pengwei Luo, Shu Luo, Wuming Luo, Vladimir Lyashuk, Qiumei Ma, Si Ma, Xiaoyan Ma, Xubo Ma, Jihane Maalmi, Yury Malyshkin, Fabio Mantovani, Francesco Manzali, Xin Mao, Yajun Mao, Stefano M. Mari, Filippo Marini, Sadia Marium, Cristina Martellini, Gisele Martin-Chassard, Agnese Martini, Davit Mayilyan, Axel Müller, Ints Mednieks, Yue Meng, Anselmo Meregaglia, Emanuela Meroni, David Meyhöfer, Mauro Mezzetto, Jonathan Miller, Lino Miramonti, Salvatore Monforte, Paolo Montini, Michele Montuschi, Nikolay Morozov, Waqas Muhammad, Pavithra Muralidharan, Massimiliano Nastasi, Dmitry V. Naumov, Elena Naumova, Diana Navas-Nicolas, Igor Nemchenok, Feipeng Ning, Zhe Ning, Hiroshi Nunokawa, Lothar Oberauer, Juan Pedro Ochoa-Ricoux, Alexander Olshevskiy, Domizia Orestano, Fausto Ortica, Hsiao-Ru Pan, Alessandro Paoloni, Nina Parkalian, Sergio Parmeggiano, Teerapat Payupol, Yatian Pei, Nicomede Pelliccia, Anguo Peng, Haiping Peng, Frédéric Perrot, Pierre-Alexandre Petitjean, Fabrizio Petrucci, Luis Felipe Piñeres Rico, Oliver Pilarczyk, Artyom Popov, Pascal Poussot, Wathan Pratumwan, Ezio Previtali, Fazhi Qi, Ming Qi, Sen Qian, Xiaohui Qian, Hao Qiao, Zhonghua Qin, Shoukang Qiu, Muhammad Rajput, Gioacchino Ranucci, Neill Raper, Alessandra Re, Henning Rebber, Abdel Rebii, Bin Ren, Jie Ren, Taras Rezinko, Barbara Ricci, Markus Robens, Mathieu Roche, Narongkiat Rodphai, Aldo Romani, Bedřich Roskovec, Christian Roth, Xiangdong Ruan, Xichao Ruan, Saroj Rujirawat, Arseniy Rybnikov, Andrey Sadovsky, Paolo Saggese, Giuseppe Salamanna, Simone Sanfilippo, Anut Sangka, Nuanwan Sanguansak, Utane Sawangwit, Julia Sawatzki, Fatma Sawy, Michaela Schever, Jacky Schuler, Cédric Schwab, Konstantin Schweizer, Dmitry Selivanov, Alexandr Selyunin, Andrea Serafini, Giulio Settanta, Mariangela Settimo, Zhuang Shao, Vladislav Sharov, Jingyan Shi, Vitaly Shutov, Andrey Sidorenkov, Fedor Šimkovic, Chiara Sirignano, Jaruchit Siripak, Monica Sisti, Maciej Slupecki, Mikhail Smirnov, Oleg Smirnov, Thiago Sogo-Bezerra, Julanan Songwadhana, Boonrucksar Soonthornthum, Albert Sotnikov, Ondrej Sramek, Warintorn Sreethawong, Achim Stahl, Luca Stanco, Konstantin Stankevich, Dušan Štefánik, Hans Steiger, Jochen Steinmann, Tobias Sterr, Matthias Raphael Stock, Virginia Strati, Alexander Studenikin, Gongxing Sun, Shifeng Sun, Xilei Sun, Yongjie Sun, Yongzhao Sun, Narumon Suwonjandee, Michal Szelezniak, Jian Tang, Qiang Tang, Quan Tang, Xiao Tang, Alexander Tietzsch, Igor Tkachev, Tomas Tmej, Konstantin Treskov, Andrea Triossi, Giancarlo Troni, Wladyslaw Trzaska, Cristina Tuve, Stefan van Waasen, Johannes van den Boom, Guillaume Vanroyen, Nikolaos Vassilopoulos, Vadim Vedin, Giuseppe Verde, Maxim Vialkov, Benoit Viaud, Cristina Volpe, Vit Vorobel, Lucia Votano, Pablo Walker, Caishen Wang, Chung-Hsiang Wang, En Wang, Guoli Wang, Jian Wang, Jun Wang, Kunyu Wang, Lu Wang, Meifen Wang, Meng Wang, Ruiguang Wang, Siguang Wang, Wei Wang, Wenshuai Wang, Xi Wang, Xiangyue Wang, Yangfu Wang, Yaoguang Wang, Yi Wang, Yifang Wang, Yuanqing Wang, Yuman Wang, Zhe Wang, Zheng Wang, Zhimin Wang, Zongyi Wang, Apimook Watcharangkool, Lianghong Wei, Wei Wei, Yadong Wei, Liangjian Wen, Christopher Wiebusch, Steven Chan-Fai Wong, Bjoern Wonsak, Diru Wu, Fangliang Wu, Qun Wu, Wenjie Wu, Zhi Wu, Michael Wurm, Jacques Wurtz, Christian Wysotzki, Yufei Xi, Dongmei Xia, Mengjiao Xiao, Yuguang Xie, Zhangquan Xie, Zhizhong Xing, Benda Xu, Cheng Xu, Donglian Xu, Fanrong Xu, Jilei Xu, Jing Xu, Meihang Xu, Yin Xu, Yu Xu, Baojun Yan, Xiongbo Yan, Yupeng Yan, Anbo Yang, Changgen Yang, Huan Yang, Jie Yang, Lei Yang, Xiaoyu Yang, Yifan Yang, Haifeng Yao, Zafar Yasin, Jiaxuan Ye, Mei Ye, Ziping Ye, Ugur Yegin, Frédéric Yermia, Peihuai Yi, Xiangwei Yin, Zhengyun You, Boxiang Yu, Chiye Yu, Chunxu Yu, Hongzhao Yu, Miao Yu, Xianghui Yu, Zeyuan Yu, Chengzhuo Yuan, Ying Yuan, Zhenxiong Yuan, Ziyi Yuan, Baobiao Yue, Noman Zafar, Andre Zambanini, Shan Zeng, Tingxuan Zeng, Yuda Zeng, Liang Zhan, Feiyang Zhang, Guoqing Zhang, Haiqiong Zhang, Honghao Zhang, Jiawen Zhang, Jie Zhang, Jingbo Zhang, Peng Zhang, Qingmin Zhang, Shiqi Zhang, Shu Zhang, Tao Zhang, Xiaomei Zhang, Xuantong Zhang, Yan Zhang, Yinhong Zhang, Yiyu Zhang, Yongpeng Zhang, Yuanyuan Zhang, Yumei Zhang, Zhenyu Zhang, Zhijian Zhang, Fengyi Zhao, Jie Zhao, Rong Zhao, Shujun Zhao, Tianchi Zhao, Dongqin Zheng, Hua Zheng, Minshan Zheng, Yangheng Zheng, Weirong Zhong, Jing Zhou, Li Zhou, Nan Zhou, Shun Zhou, Xiang Zhou, Jiang Zhu, Kejun Zhu, Honglin Zhuang, Liang Zong, and Jiaheng Zou

Subjects
Neutrino Detectors and Telescopes (experiments), Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract We present the calibration strategy for the 20 kton liquid scintillator central detector of the Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional calibration program, in combination with a novel dual calorimetry technique exploiting two independent photosensors and readout systems, we demonstrate that the JUNO central detector can achieve a better than 1% energy linearity and a 3% effective energy resolution, required by the neutrino mass ordering determination.

Published
2021
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9. Effective and Selective Extraction of Quercetin from Onion (Allium cepa L.) Skin Waste Using Water Dilutions of Acid-Based Deep Eutectic Solvents

Author

Matteo Ciardi, Federica Ianni, Roccaldo Sardella, Stefano Di Bona, Lina Cossignani, Raimondo Germani, Matteo Tiecco, and Catia Clementi

Subjects
quercetin, Deep Eutectic Solvents, extraction, preconcentration, DESs water dilutions, RP-HPLC-UV, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85
Abstract

Deep Eutectic Solvents (DESs) are experiencing growing interest as substitutes of polluting organic solvents for their low or absent toxicity and volatility. Moreover, they can be formed with natural bioavailable and biodegradable molecules; they are synthesized in absence of hazardous solvents. DESs are, inter alia, successfully used for the extraction/preconcentration of biofunctional molecules from complex vegetal matrices. Onion skin is a highly abundant waste material which represents a reservoir of molecules endowed with valuable biological properties such as quercetin and its glycosylated forms. An efficient extraction of these molecules from dry onion skin from “Dorata di Parma” cultivar was obtained with water dilution of acid-based DESs. Glycolic acid (with betaine 2/1 molar ratio and L-Proline 3/1 molar ratio as counterparts) and of p-toluensulphonic acid (with benzyltrimethylammonium methanesulfonate 1/1 molar ratio)-based DESs exhibited more than 3-fold higher extraction efficiency than methanol (14.79 µg/mL, 18.56 µg/mL, 14.83 µg/mL vs. 5.84 µg/mL, respectively). The extracted quercetin was also recovered efficaciously (81% of recovery) from the original extraction mixture. The proposed extraction protocol revealed to be green, efficacious and selective for the extraction of quercetin from onion skin and it could be useful for the development of other extraction procedures from other biological matrixes.

Published
2021
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10. Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (Allium cepa L.) Skin Extract

Author

Claudia Volpi, Desirée Bartolini, Virginia Brighenti, Francesco Galli, Matteo Tiecco, Federica Pellati, Catia Clementi, and Roccaldo Sardella

Subjects
Allium cepa L., onion, polyphenols, biofunctional textiles, mordant, ROS, Therapeutics. Pharmacology, RM1-950
Abstract

In this study, the phenol loading and antioxidant activity of wool yarn prepared with the aqueous extract of onion (Allium cepa L.) skin was enhanced by implementing the dyeing process with the use of alum as a mordant. Spectrophotometric and chromatographic methods were applied for the characterization of polyphenolic substances loaded on the wool yarn. The antioxidant/anti-inflammatory properties were evaluated by determining the level of intra- and extra-cellular reactive oxygen species (ROS) production in keratinocytes and dermal fibroblasts pre-treated with lipopolysaccharide put in contact with artificial sweat. An elevated dye uptake on wool was observed for the pre-mordanted sample, as demonstrated by high absorbance values in the UV-Visible spectral range. Chromatographic results showed that protocatechuic acid and its glucoside were the main phenolic acid released in artificial sweat by the wool yarns, while quercetin-4′-glucoside and its aglycone quercetin were more retained. The extract released from the textile immersed in artificial sweat showed a significant reducing effect on the intra-and extracellular ROS levels in the two cell lines considered. Cytofluorimetric analyses demonstrated that the selected mordant was safe at the concentration used in the dyeing procedure. Therefore, alum pre-mordanted textiles dyed with onion-skin extracts may represent an interesting tool against skin diseases.

Published
2021
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11. Use of a Zwitterionic Surfactant to Improve the Biofunctional Properties of Wool Dyed with an Onion (Allium cepa L.) Skin Extract

Author

Chiara Puri, Lucia Pucciarini, Matteo Tiecco, Virginia Brighenti, Claudia Volpi, Marco Gargaro, Raimondo Germani, Federica Pellati, Roccaldo Sardella, and Catia Clementi

Subjects
onion, flavonoids, quercetin, waste, surfactant, antioxidant activity, Therapeutics. Pharmacology, RM1-950
Abstract

To improve the loadability and antioxidant properties of wool impregnated with onion skin extract, the introduction of SB3-14 surfactant in the dyeing process was evaluated. A preliminary investigation on the surfactant–quercetin interaction indicated that the optimal conditions for dye solubility, stability, and surfactant affinity require double-distilled water (pH = 5.5) as a medium and SB3-14 in a concentration above the c.m.c. (2.5 × 10−3 M). The absorption profile of textiles showed the flavonoid absorption band (390 nm) and a bathochromic feature (510 nm), suggesting flavonoid aggregates. The higher absorbance for the sample dyed with SB3-14 indicated greater dye uptake, which was further confirmed by HPLC analysis. The Folin–Ciocalteu method was applied to evaluate the total phenol content (TPC) released from the treated wool, while the assays FRAP, DPPH, ABTS, and ORAC were applied to evaluate the corresponding total antioxidant activity (TAC). Higher TPCs (about 20%) and TACs (5–55%) were measured with SB3-14, highlighting textiles with improved biofunctional properties. Spectrophotometric analyses were also performed with an artificial sweat. The potential cytotoxic effect of SB3-14 in both monomeric and aggregated forms, cell viability, and induction of apoptosis were evaluated in RAW 264.7 cells. These analyses revealed that SB3-14 is safe at concentrations below the c.m.c.

Published
2020
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12. Onion (Allium cepa L.) Skin: A Rich Resource of Biomolecules for the Sustainable Production of Colored Biofunctional Textiles

Author

Lucia Pucciarini, Federica Ianni, Valentina Petesse, Federica Pellati, Virginia Brighenti, Claudia Volpi, Marco Gargaro, Benedetto Natalini, Catia Clementi, and Roccaldo Sardella

Subjects
Allium cepa L., onion skin, phenolics, antioxidant activity, biofunctional textiles, photo-oxidative damage, Organic chemistry, QD241-441
Abstract

The aqueous extract of dry onion skin waste from the ‘Dorata di Parma’ cultivar was tested as a new source of biomolecules for the production of colored and biofunctional wool yarns, through environmentally friendly dyeing procedures. Specific attention was paid to the antioxidant and UV protection properties of the resulting textiles. On the basis of spectrophotometric and mass spectrometry analyses, the obtained deep red-brown color was assigned to quercetin and its glycoside derivatives. The Folin⁻Ciocalteu method revealed good phenol uptakes on the wool fiber (higher than 27% for the textile after the first dyeing cycle), with respect to the original total content estimated in the water extract (78.50 ± 2.49 mg equivalent gallic acid/g onion skin). The manufactured materials showed remarkable antioxidant activity and ability to protect human skin against lipid peroxidation following UV radiation: 7.65 ± 1.43 (FRAP assay) and 13.60 (ORAC assay) mg equivalent trolox/g textile; lipid peroxidation inhibition up to 89.37%. This photoprotective and antioxidant activity were therefore ascribed to the polyphenol pool contained in the outer dried gold skins of onion. It is worth noting that citofluorimetric analysis demonstrated that the aqueous extract does not have a significative influence on cell viability, neither is capable of inducing a proapoptotic effect.

Published
2019
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13. Mass testing of the JUNO experiment 20-inch PMTs readout electronics

Author

Alberto Coppi, Beatrice Jelmini, Marco Bellato, Antonio Bergnoli, Matteo Bolognesi, Riccardo Brugnera, Vanessa Cerrone, Chao Chen, Barbara Clerbaux, Marta Colomer Molla, Daniele Corti, Flavio dal Corso, Jianmeng Dong, Wei Dou, Lei Fan, Alberto Garfagnini, Arsenii Gavrikov, Guanghua Gong, Marco Grassi, Rosa Maria Guizzetti, Shuang Hang, Cong He, Jun Hu, Roberto Isocrate, Xiaolu Ji, Xiaoshan Jiang, Fei Li, Zehong Liang, Ivano Lippi, Hongbang Liu, Hongbin Liu, Shenghui Liu, Xuewei Liu, Daibin Luo, Ronghua Luo, Filippo Marini, Daniele Mazzaro, Luciano Modenese, Zhe Ning, Yu Peng, Pierre-Alexandre Petitjean, Alberto Pitacco, Mengyao Qi, Loris Ramina, Mirco Rampazzo, Massimo Rebeschini, Mariia Redchuk, Andrea Serafini, Yunhua Sun, Andrea Triossi, Riccardo Triozzi, Fabio Veronese, Katharina von Sturm, Peiliang Wang, Peng Wang, Yangfu Wang, Yusheng Wang, Yuyi Wang, Zheng Wang, Ping Wei, Jun Weng, Shishen Xian, Xiaochuan Xie, Benda Xu, Chuang Xu, Donglian Xu, Hai Xu, Xiongbo Yan, Ziyue Yan, Fengfan Yang, Yan Yang, Yifan Yang, Mei Ye, Tingxuan Zeng, Shuihan Zhang, Wei Zhang, Aiqiang Zhang, Bin Zhang, Siyao Zhao, Changge Zi, Sebastiano Aiello, Giuseppe Andronico, Vito Antonelli, Andrea Barresi, Davide Basilico, Marco Beretta, Augusto Brigatti, Riccardo Bruno, Antonio Budano, Barbara Caccianiga, Antonio Cammi, Stefano Campese, Davide Chiesa, Catia Clementi, Marco Cordelli, Stefano Dusini, Andrea Fabbri, Giulietto Felici, Federico Ferraro, Marco Giulio Giammarchi, Cecilia Landini, Paolo Lombardi, Claudio Lombardo, Andrea Maino, Fabio Mantovani, Stefano Maria Mari, Agnese Martini, Emanuela Meroni, Lino Miramonti, Michele Montuschi, Massimiliano Nastasi, Domizia Orestano, Fausto Ortica, Alessandro Paoloni, Sergio Parmeggiano, Fabrizio Petrucci, Ezio Previtali, Gioacchino Ranucci, Alessandra Carlotta Re, Barbara Ricci, Aldo Romani, Paolo Saggese, Simone Sanfilippo, Chiara Sirignano, Monica Sisti, Luca Stanco, Virginia Strati, Francesco Tortorici, Cristina Tuvé, Carlo Venettacci, Giuseppe Verde, Lucia Votano, Coppi, Alberto, Jelmini, Beatrice, Bellato, Marco, Bergnoli, Antonio, Bolognesi, Matteo, Brugnera, Riccardo, Cerrone, Vanessa, Chen, Chao, Clerbaux, Barbara, Corti, Daniele, dal Corso, Flavio, Dong, Jianmeng, Dou, Wei, Fan, Lei, Garfagnini, Alberto, Gavrikov, Arsenii, Gong, Guanghua, Grassi, Marco, Guizzetti, Rosa Maria, Hang, Shuang, He, Cong, Hu, Jun, Isocrate, Roberto, Ji, Xiaolu, Jiang, Xiaoshan, Li, Fei, Liang, Zehong, Lippi, Ivano, Liu, Hongbang, Liu, Hongbin, Liu, Shenghui, Liu, Xuewei, Luo, Daibin, Luo, Ronghua, Marini, Filippo, Mazzaro, Daniele, Modenese, Luciano, Molla, Marta Colomer, Ning, Zhe, Peng, Yu, Petitjean, Pierre-Alexandre, Pitacco, Alberto, Qi, Mengyao, Ramina, Lori, Rampazzo, Mirco, Rebeschini, Massimo, Redchuk, Mariia, Serafini, Andrea, Sun, Yunhua, Triossi, Andrea, Triozzi, Riccardo, Veronese, Fabio, von Sturm, Katharina, Wang, Peiliang, Wang, Peng, Wang, Yangfu, Wang, Yusheng, Wang, Yuyi, Wang, Zheng, Wei, Ping, Weng, Jun, Xian, Shishen, Xie, Xiaochuan, Xu, Benda, Xu, Chuang, Xu, Donglian, Xu, Hai, Yan, Xiongbo, Yan, Ziyue, Yang, Fengfan, Yang, Yan, Yang, Yifan, Ye, Mei, Zeng, Tingxuan, Zhang, Shuihan, Zhang, Wei, Zhang, Aiqiang, Zhang, Bin, Zhao, Siyao, Zi, Changge, Aiello, Sebastiano, Andronico, Giuseppe, Antonelli, Vito, Barresi, Andrea, Basilico, Davide, Beretta, Marco, Brigatti, Augusto, Bruno, Riccardo, Budano, Antonio, Caccianiga, Barbara, Cammi, Antonio, Campese, Stefano, Chiesa, Davide, Clementi, Catia, Cordelli, Marco, Dusini, Stefano, Fabbri, Andrea, Felici, Giulietto, Ferraro, Federico, Giammarchi, Marco Giulio, Landini, Cecilia, Lombardi, Paolo, Lombardo, Claudio, Maino, Andrea, Mantovani, Fabio, Mari, Stefano Maria, Martini, Agnese, Meroni, Emanuela, Miramonti, Lino, Montuschi, Michele, Nastasi, Massimiliano, Orestano, Domizia, Ortica, Fausto, Paoloni, Alessandro, Parmeggiano, Sergio, Petrucci, Fabrizio, Previtali, Ezio, Ranucci, Gioacchino, Re, Alessandra Carlotta, Ricci, Barbara, Romani, Aldo, Saggese, Paolo, Sanfilippo, Simone, Sirignano, Chiara, Sisti, Monica, Stanco, Luca, Strati, Virginia, Tortorici, Francesco, Tuvé, Cristina, Venettacci, Carlo, Verde, Giuseppe, and Votano, Lucia

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Instrumentation
Abstract

The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose, large size, liquid scintillator experiment under construction in China. JUNO will perform leading measurements detecting neutrinos from different sources (reactor, terrestrial and astrophysical neutrinos) covering a wide energy range (from 200 keV to several GeV). This paper focuses on the design and development of a test protocol for the 20-inch PMT underwater readout electronics, performed in parallel to the mass production line. In a time period of about ten months, a total number of 6950 electronic boards were tested with an acceptance yield of 99.1%.

Published
2023

14. Portable Instrumentation

Author

Aldo Romani, Costanza Miliani, Catia Clementi, Chiara Grazia, Francesco Colao, Roberta Fantoni, Gianluca Valentini, Vincent Detalle, and Xueshi Bai

Published
2023

15. Validation and integration tests of the JUNO 20-inch PMT readout electronics

Author

Vanessa Cerrone, Katharina von Sturm, Marco Bellato, Antonio Bergnoli, Matteo Bolognesi, Riccardo Brugnera, Chao Chen, Barbara Clerbaux, Alberto Coppi, Flavio dal Corso, Daniele Corti, Jianmeng Dong, Wei Dou, Lei Fan, Alberto Garfagnini, Guanghua Gong, Marco Grassi, Shuang Hang, Rosa Maria Guizzetti, Cong He, Jun Hu, Roberto Isocrate, Beatrice Jelmini, Xiaolu Ji, Xiaoshan Jiang, Fei Li, Zehong Liang, Ivano Lippi, Hongbang Liu, Hongbin Liu, Shenghui Liu, Xuewei Liu, Daibin Luo, Ronghua Luo, Filippo Marini, Daniele Mazzaro, Luciano Modenese, Zhe Ning, Yu Peng, Pierre-Alexandre Petitjean, Alberto Pitacco, Mengyao Qi, Loris Ramina, Mirco Rampazzo, Massimo Rebeschini, Mariia Redchuk, Andrea Serafini, Yunhua Sun, Andrea Triossi, Riccardo Triozzi, Fabio Veronese, Peiliang Wang, Peng Wang, Yangfu Wang, Yusheng Wang, Yuyi Wang, Zheng Wang, Ping Wei, Jun Weng, Shishen Xian, Xiaochuan Xie, Benda Xu, Chuang Xu, Donglian Xu, Hai Xu, Xiongbo Yan, Ziyue Yan, Fengfan Yang, Yan Yang, Yifan Yang, Mei Ye, Tingxuan Zeng, Shuihan Zhang, Wei Zhang, Aiqiang Zhang, Bin Zhang, Siyao Zhao, Changge Zi, Sebastiano Aiello, Giuseppe Andronico, Vito Antonelli, Andrea Barresi, Davide Basilico, Marco Beretta, Augusto Brigatti, Riccardo Bruno, Antonio Budano, Barbara Caccianiga, Antonio Cammi, Stefano Campese, Davide Chiesa, Catia Clementi, Marco Cordelli, Stefano Dusini, Andrea Fabbri, Giulietto Felici, Federico Ferraro, Marco G. Giammarchi, Cecilia Landini, Paolo Lombardi, Claudio Lombardo, Andrea Maino, Fabio Mantovani, Stefano Maria Mari, Agnese Martini, Emanuela Meroni, Lino Miramonti, Michele Montuschi, Massimiliano Nastasi, Domizia Orestano, Fausto Ortica, Alessandro Paoloni, Sergio Parmeggiano, Fabrizio Petrucci, Ezio Previtali, Gioacchino Ranucci, Alessandra Carlotta Re, Barbara Ricci, Aldo Romani, Paolo Saggese, Simone Sanfilippo, Chiara Sirignano, Monica Sisti, Luca Stanco, Virginia Strati, Francesco Tortorici, Cristina Tuvé, Carlo Venettacci, Giuseppe Verde, and Lucia Votano

Subjects
High Energy Physics - Experiment (hep-ex), Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Instrumentation, High Energy Physics - Experiment
Abstract

The Jiangmen Underground Neutrino Observatory (JUNO) is a large neutrino detector currently under construction in China. JUNO will be able to study the neutrino mass ordering and to perform leading measurements detecting terrestrial and astrophysical neutrinos in a wide energy range, spanning from 200 keV to several GeV. Given the ambitious physics goals of JUNO, the electronic system has to meet specific tight requirements, and a thorough characterization is required. The present paper describes the tests performed on the readout modules to measure their performances., 20 pages, 13 figures

Published
2023

16. Effective and Selective Extraction of Quercetin from Onion (Allium cepa L.) Skin Waste Using Water Dilutions of Acid-Based Deep Eutectic Solvents

Author

Roccaldo Sardella, Matteo Tiecco, Raimondo Germani, Lina Cossignani, Catia Clementi, Matteo Ciardi, Stefano Di Bona, and Federica Ianni

Subjects
Technology, Serial dilution, Deep Eutectic Solvents, Article, quercetin, chemistry.chemical_compound, recovery, Betaine, preconcentration, General Materials Science, Glycolic acid, Microscopy, QC120-168.85, Chromatography, RP-HPLC-UV, biology, DESs water dilutions, Extraction (chemistry), QH201-278.5, food and beverages, biology.organism_classification, Engineering (General). Civil engineering (General), Bioavailability, TK1-9971, chemistry, Descriptive and experimental mechanics, UHPLC-MS/MS, extraction, Allium, Methanol, Electrical engineering. Electronics. Nuclear engineering, TA1-2040, Quercetin
Abstract

Deep Eutectic Solvents (DESs) are experiencing growing interest as substitutes of polluting organic solvents for their low or absent toxicity and volatility. Moreover, they can be formed with natural bioavailable and biodegradable molecules, they are synthesized in absence of hazardous solvents. DESs are, inter alia, successfully used for the extraction/preconcentration of biofunctional molecules from complex vegetal matrices. Onion skin is a highly abundant waste material which represents a reservoir of molecules endowed with valuable biological properties such as quercetin and its glycosylated forms. An efficient extraction of these molecules from dry onion skin from “Dorata di Parma” cultivar was obtained with water dilution of acid-based DESs. Glycolic acid (with betaine 2/1 molar ratio and L-Proline 3/1 molar ratio as counterparts) and of p-toluensulphonic acid (with benzyltrimethylammonium methanesulfonate 1/1 molar ratio)-based DESs exhibited more than 3-fold higher extraction efficiency than methanol (14.79 µg/mL, 18.56 µg/mL, 14.83 µg/mL vs. 5.84 µg/mL, respectively). The extracted quercetin was also recovered efficaciously (81% of recovery) from the original extraction mixture. The proposed extraction protocol revealed to be green, efficacious and selective for the extraction of quercetin from onion skin and it could be useful for the development of other extraction procedures from other biological matrixes.

Published
2021
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17. Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (Allium cepa L.) Skin Extract

Author

Federica Pellati, Catia Clementi, Matteo Tiecco, Roccaldo Sardella, Francesco Galli, Virginia Brighenti, Claudia Volpi, and Desirée Bartolini

Subjects
Antioxidant, Biofunctional textiles, Physiology, medicine.medical_treatment, Clinical Biochemistry, RM1-950, Biochemistry, Article, Protocatechuic acid, chemistry.chemical_compound, mordant, medicine, Allium cepa L, Mordant, Onion, Polyphenols, ROS, Skin, Molecular Biology, onion, polyphenols, Chromatography, Alum, Cell Biology, Phenolic acid, biofunctional textiles, chemistry, Polyphenol, Therapeutics. Pharmacology, Dyeing, Quercetin
Abstract

In this study, the phenol loading and antioxidant activity of wool yarn prepared with the aqueous extract of onion (Allium cepa L.) skin was enhanced by implementing the dyeing process with the use of alum as a mordant. Spectrophotometric and chromatographic methods were applied for the characterization of polyphenolic substances loaded on the wool yarn. The antioxidant/anti-inflammatory properties were evaluated by determining the level of intra- and extra-cellular reactive oxygen species (ROS) production in keratinocytes and dermal fibroblasts pre-treated with lipopolysaccharide put in contact with artificial sweat. An elevated dye uptake on wool was observed for the pre-mordanted sample, as demonstrated by high absorbance values in the UV-Visible spectral range. Chromatographic results showed that protocatechuic acid and its glucoside were the main phenolic acid released in artificial sweat by the wool yarns, while quercetin-4′-glucoside and its aglycone quercetin were more retained. The extract released from the textile immersed in artificial sweat showed a significant reducing effect on the intra-and extracellular ROS levels in the two cell lines considered. Cytofluorimetric analyses demonstrated that the selected mordant was safe at the concentration used in the dyeing procedure. Therefore, alum pre-mordanted textiles dyed with onion-skin extracts may represent an interesting tool against skin diseases.

Published
2021

18. Effect of hydrogen bonding interaction on the photophysics of α-amino-orcein

Author

Benedetta Carlotti, C. Burattini, Fausto Elisei, Roberto Maria Pellegrino, Aldo Romani, and Catia Clementi

Subjects
Femtosecond transient absorption, Orcein, Quantum yield, UV‐Visible spectroscopy, 02 engineering and technology, 010402 general chemistry, Photochemistry, 01 natural sciences, Analytical Chemistry, chemistry.chemical_compound, Ultraviolet visible spectroscopy, Atomic and Molecular Physics, Molecule, Instrumentation, Spectroscopy, Lichen dye, Spectrofluorimetry, Atomic and Molecular Physics, and Optics, Hydrogen bond, Chromophore, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Solvent, chemistry, Excited state, and Optics, 0210 nano-technology, Protic solvent
Abstract

This paper reports for the first time a detailed spectroscopic investigation into the ground- and excited-state properties of α-amino-orcein (α-AO), one of the main components of the orcein dye, in solvents of different proticity and water at different pHs. In order to gain insight into the nature of the involved transitions and excited state deactivation pathways, the study was carried out by means of UV–Visible steady state and ultrafast spectroscopic techniques with the support of quantum mechanical calculations (DFT and TDDFT). The results highlight that the photophysical and photodynamic behaviour of α-AO are highly sensitive to the solvent proticity and pH. In particular, protic environment induces a red shift (55 nm) of the absorption spectrum together with a relevant decrease of the fluorescence quantum yield (from 0.19 in acetonitrile to 6.6 × 10−3 in methanol) and radiative rate constant (two orders of magnitude). A notable red shift is also caused by increasing the pH leading the molecule from monocationic to neutral and then monoanionic form through two deprotonation steps (pKa = 3.539 ± 0.006 and 11.180 ± 0.006). Following deprotonation, the molecule assumes spectral and photophysical properties very similar to those retrieved in protic media. The observed behaviour has been rationalized through the occurrence of hydrogen bonding, likely involving to a greater extent the carbonyl oxygen of α-AO and the protic solvent, that favours the charge delocalization on the whole chromophore as well as fast non-radiative excited state deactivation. The ultrafast spectroscopic investigation revealed in fact the presence, in protic solvent, of a short living component (tens of picoseconds), assignable to solvent complexed S1 state, alongside the long living component (few nanoseconds) observed in aprotic media and attributed to the solvent free S1 state. The results achieved in this study for α-AO provides an important contribution to the interpretation of absorption and fluorescence features of orcein dye mixture in more complex systems (protein based substrates within the many aspects of the cultural heritage and biomedical field) where hydrogen bonds are expected to play a crucial role in mediating the interaction with the environment.

Published
2019

19. Mimicking the Secretory Action of a Gland by a Composite System Made of a pH-Responsive Surfactant-Based Hydrogel and a Dialysis Membrane

Author

Raimondo Germani, Pier Luigi Gentili, Irene Di Guida, Naishka E. Caldero-Rodríguez, Catia Clementi, and Alessio Cesaretti

Subjects
010405 organic chemistry, Chemistry, Pulse (signal processing), Chemical Artificial Intelligence, Effector Modules, Supramolecular Chemistry, Surfactants, General Chemical Engineering, General Chemistry, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, lcsh:Chemistry, Core (optical fiber), Viscosity, lcsh:QD1-999, Chemical engineering, Pulmonary surfactant
Abstract

The hydrogel obtained by a zwitterionic N-oxide surfactant is proposed as the core of a pH-responsive artificial gland model. The viscosity and pH variations, induced by pulse additions of acid and...

Published
2018

20. Calibration strategy of the JUNO experiment

Author

Andrea Barresi, Muhammad Usman Rajput, Chengzhuo Yuan, Demin Li, Cédric Huss, Jie Zhao, Xianghui Yu, W. H. Huang, Feng Gao, Sen Qian, Patrick Kinz, Miao He, Axel Müller, Davit Mayilyan, Utane Sawangwit, Jacques Wurtz, Wenju Huo, Hang Hu, Guanghua Gong, G. Andronico, Giuseppe Verde, Si Ma, Livia Ludhova, Xiaoyu Yang, Lucia Votano, Waqas Muhammad, Oleg Smirnov, Jie Yang, Zhe Ning, Y. X. Zhang, Zhuang Shao, Jun Wang, Martin Dvorak, Hao Liang, Nikolay Morozov, Ara Ioannisian, Qingmin Zhang, Ezio Previtali, Barbara Ricci, Ints Mednieks, Wuming Luo, Rossella Caruso, Diru Wu, Alexander Studenikin, Sadia Marium, Jingbo Zhang, M. Settimo, A. Popov, Enrico Bernieri, Xiaowei Liu, Yumei Zhang, Anut Sangka, Feipeng Ning, F. Z. Qi, Simon Blyth, Anatael Cabrera, Antonio Insolia, Donglian Xu, Amir N. Khan, Minghao Gu, Daniel Liebau, Shouyang Hu, Thilo Birkenfeld, Mengyun Guan, Gérard Claverie, Xin Mao, Xingtao Huang, Guoqing Zhang, Markus Robens, Jari Joutsenvaara, Zhibing Li, Can Fang, Nuanwan Sanguansak, Andrey Formozov, Ugur Yegin, Yuekun Heng, Xiaohui Qian, Riccardo Bruno, Zafar Yasin, Selma Conforti Di Lorenzo, Weidong Li, Xiaonan Li, Cédric Schwab, Yuguang Xie, Narumon Suwonjandee, Michael Wurm, Teerapat Payupol, Andrea Serafini, Chunhao Huang, Fangliang Wu, Haoqi Lu, Di Jiang, Salvatore Costa, Yue Meng, Y. Sun, S. Dusini, Mathieu Roche, Stefano Maria Mari, S. Parmeggiano, N. Raper, M. A. Szelezniak, W. J. Wu, Jingbin Lu, Heike Enzmann, Nan Li, Zhonghua Qin, Min Liu, Q. J. Li, Tobias Heinz, Frédéric Druillole, Qun Wu, Anbo Yang, Hongjuan Liu, Sukit Limpijumnong, Peihuai Yi, Cecilia Landini, Jonathan Miller, Yu Xu, Agnese Martini, Vito Antonelli, A. Bolshakova, Alexandre Göttel, X. L. Ji, Yuanqing Wang, Haonan Gan, Lei Yang, Sebastiano Aiello, Leonidas Kalousis, Andre Zambanini, R. T. Lei, Stefan van Waasen, Dmitry Selivanov, Khanchai Khosonthongkee, Yanke Cai, F. Yermia, Yuman Wang, Rong Zhao, Jian Wang, E. Meroni, Filippo Marini, Narine Kazarian, Y. F. Wang, Shanfeng Li, Q. An, Alessandra Re, Chung-Hsiang Wang, Agnese Giaz, Tingxuan Zeng, Guihong Huang, Andrej Babic, Fabio Mantovani, Fang Liu, Richard Ford, Zhe Wang, Christian Grewing, Antonio Bergnoli, Warintorn Sreethawong, Georgy Donchenko, S. Krokhaleva, Mengzhao Li, Rupert Leitner, Monica Sisti, Domizia Orestano, Mario Buscemi, Paolo Montini, Marco Grassi, Zeyuan Yu, Tobias Lachenmaier, Jianrun Hu, Victor Lebrin, Angel Abusleme, Boxiang Yu, Tao Li, Maciej Slupecki, Boonrucksar Soonthornthum, Catia Clementi, Marco Giammarchi, Francesco Manzali, B. Z. Hu, Virginia Strati, Alexey Krasnoperov, Zhang Chen, Hua Zheng, P. Saggese, Minshan Zheng, Xiaolu Ji, Gisele Martin-Chassard, Matthias Raphael Stock, Pablo Walker, Jose Busto, Agustin Campeny, Burin Asavapibhop, Yinhong Zhang, S. B. Liu, Vitaly Shutov, Barbara Clerbaux, Peng Zhang, Zhengyun You, Yayun Ding, Shubin Liu, Ayut Limphirat, S. Dmitrievsky, Siyu Jian, S. Sanfilippo, Cristina Tuve, Shoukang Qiu, Shifeng Sun, Jie Ren, Sébastien Leblanc, Po-An Chen, Xubo Ma, Safeer Hussain, Guangpeng An, Nicomede Pelliccia, Yuhang Guo, Shan Zeng, Konstantin A. Kouzakov, Shaojing Hou, Jing Xu, X. H. Guo, Feiyang Zhang, Dongqin Zheng, Ilya Butorov, Maria Gul, Kunyu Wang, Claudio Lombardo, Zhi Deng, Zhiyan Cai, Yu Gu, Yufei Xi, K. Loo, R. Brugnera, Shu Luo, Jiaheng Zou, Ran Han, Giancarlo Troni, M. H. Ye, Xiaoxu Lu, Fengjiao Luo, H. D. Liu, Haitao Li, Fei Li, Julanan Songwadhana, Xiaomei Zhang, Fengpeng An, X. D. Ruan, Chunxu Yu, Vadim Vedin, Mauro Mezzetto, Jiaqi Li, Caren Hagner, Shu Zhang, Wander Baldini, Yangheng Zheng, Antonio Budano, Michele Montuschi, Zheng Wang, Qin Liu, Pierre-Alexandre Petitjean, Xuefeng Ding, H. R. Pan, Lukas Fajt, Jingyan Shi, David Meyhöfer, Fanrong Xu, Marco Bellato, Zhenyu Zhang, S. J. Zhao, Clément Bordereau, Yan Zhang, Bayarto Lubsandorzhiev, Guang Luo, Benda Xu, Xiangyue Wang, Christophe De La Taille, Miao Yu, Christian Roth, Nina Parkalian, Andrea Fabbri, Fausto Ortica, João Pedro Athayde Marcondes de André, Y. Wang, Liangjian Wen, S. X. Du, Jian Tang, Frederic Lefevre, Tao Hu, Vasily Gromov, Guofu Cao, Liang Zhan, E. Doroshkevich, Steven Chan-Fai Wong, Amélie Fournier, Apimook Watcharangkool, Jinchang Liu, Qian Liu, Yongbo Huang, Bayu Dirgantara, Chiara Sirignano, Qiumei Ma, Yi Wang, A. Sadovsky, Xichao Ruan, Caishen Wang, G. Settanta, Flavio Dal Corso, Beatrice Jelmini, Guillaume Vanroyen, Baojun Yan, Ruhui Li, Mikhail Smirnov, Huan Yang, Z. Wu, Xiao Cai, Yun Chang, Meng Wang, Yufeng Li, Tianchi Zhao, K. L. Jen, Li-Cheng Feng, Guey-Lin Lin, Shuxiang Lu, Massimiliano Nastasi, Thomas Adam, Rizwan Ahmed, David Blum, Marco Fargetta, Didier Auguste, Weiguo Li, Jian Fang, Patrick Hellmuth, Muhammad Akram, Hui Liu, Tomas Tmej, G. X. Sun, Fengyi Zhao, Christian Wysotzki, Wladyslaw Henryk Trzaska, Achim Stahl, Sylvie Blin, Yin Xu, Alexander Tietzsch, Fedor Šimkovic, Haiping Peng, Ziping Ye, Baobiao Yue, A. Sotnikov, Aldo Romani, Anna Chuvashova, Noman Zafar, Tatiana Antoshkina, Wanlei Guo, C. Jollet, Christoph Genster, Sultim Lubsandorzhiev, Y. K. Sun, Xiangwei Yin, Xiaoping Jing, H. Steiger, Muhammad Sohaib Hassan, Cristina Martellini, Wei Wang, B. Viaud, Igor Nemchenok, Zhijian Zhang, Fatma Sawy, Xiaofei Gu, Alexander Olshevskiy, Liang Zong, Pavithra Muralidharan, Xiaomei Li, Alexandr Selyunin, Yu Chen, Jochen Steinmann, Qiang Tang, Daojin Hong, Daniele Corti, Yatian Pei, S. Zhang, Denis Korablev, Yi Chen, Dominique Breton, Franco Giuliani, F. Li, Augusto Brigatti, Artem Chukanov, Nikolaos Vassilopoulos, Jiaxuan Ye, Yi-Wen Chen, K. Treskov, Michael Karagounis, Haiqiong Zhang, Jiang Zhu, Nunzio Giudice, Zongyi Wang, H. L. Zhuang, Marco Aurelio Diaz, Nikolay Kutovskiy, Shakeel Ahmad, Narongkiat Rodphai, Yifan Yang, Huihui Jia, Juan Pedro Ochoa-Ricoux, Jin Li, Hongtao Liu, Andrey Sidorenkov, Qichun Feng, Jiawen Zhang, T. Enqvist, Ruyi Jin, J. J. Ling, Arseniy Rybnikov, Lino Miramonti, Yi Li, Luis Felipe Piñeres Rico, Ziyuan Li, Ziyi Yuan, A. Lokhov, Jie Cheng, Rafael Herrera, Jiaqi Hui, Wathan Pratumwan, En Wang, Konstantin Schweizer, A. Kruth, Tobias Sterr, Shengxin Lin, Anna Fatkina, Fabrizio Petrucci, Mathieu Bongrand, Olivia Dalager, Alessandro Paoloni, Philipp Kampmann, Roberto Isocrate, Jianmeng Dong, Weirong Zhong, Yiyu Zhang, Saroj Rujirawat, Giuseppe Salamanna, Maxim Vialkov, Abdel Rebii, Mengjiao Xiao, Jing Zhou, P. Chimenti, Jingjing Liang, Yuanyuan Zhang, Pingping Chen, Igor Tkachev, A. Cammi, Oliver Pilarczyk, Vit Vorobel, Zhimin Wang, Honghao Zhang, Zhenxiong Yuan, Xiang Zhou, Damien Dornic, Jie Zhang, Zhangquan Xie, Yaping Cheng, Ying Yuan, Maxim Gonchar, Wei Wei, Zhuojun Hu, Ivano Lippi, Xilei Sun, Shaomin Chen, Jun Cao, Li Zhou, Ruiguang Wang, Nikolay Anfimov, Andrea Triossi, Runxuan Liu, Xinglong Li, Waseem Khan, Pasi Kuusiniemi, Xi Wang, Salvatore Monforte, Meihang Xu, Eric Baussan, Haifeng Yao, Xuantong Zhang, Yang Han, Pascal Poussot, Dongmei Xia, Jacky Schuler, Hao Qiao, Hu Liu, Henning Rebber, Dmitry V. Naumov, Luca Stanco, Paul Hackspacher, Y. K. Hor, Lei Fan, Ziyan Deng, Lei Huo, Ondrej Sramek, K. J. Li, Jianglai Liu, Lu Wang, Paolo Lombardi, Marcos Dracos, B. Roskovec, Taras Rezinko, Quan Tang, Jiawei Deng, Jason Leung, Xiao Tang, Junji Jia, Huiling Li, Nunzio Guardone, Chuanya Cao, Diana Navas-Nicolas, A. Meregaglia, Zhi-zhong Xing, V. Fekete, Jilei Xu, W. Wang, Siguang Wang, Yupeng Yan, Hao Cai, Christopher Wiebusch, Y. B. Hsiung, Z. V. Krumshteyn, Sirichok Jungthawan, Thiago Sogo-Bezerra, Yury Malyshkin, S. Li, Dmitry Fedoseev, Tao Lin, Chuan Lu, J. F. Chang, Davide Chiesa, Changgen Yang, A. Garfagnini, F. Perrot, Wilfried Depnering, Xiaoyan Ma, Yadong Wei, M. Wang, O. Gorchakov, Yajun Mao, Anguo Peng, C. Cerna, Wei He, Lothar Oberauer, Konstantin Stankevich, Yuri Gornushkin, Donghua Fan, Cong Guo, Dušan Štefánik, Ming Qi, Lianghong Wei, Jihane Maalmi, E. Naumova, Jaruchit Siripak, Tadeas Dohnal, Julia Sawatzki, Hongbang Liu, X. R. Chen, Bjoern Wonsak, Vladimir Lyashuk, Johannes van den Boom, Qinhua Huang, Jingyuan Guo, Yuda Zeng, Shulin Liu, Tao Zhang, Guo-Li Wang, Hui Gong, Michaela Schever, Jun Hu, K. J. Zhu, P. W. Luo, Shun Zhou, Bin Ren, Nan Zhou, Yan Liu, Li Kang, Junguang Lu, Gioacchino Ranucci, Chiye Yu, Cheng Xu, Hongzhao Yu, Hanxiong Huang, Xiongbo Yan, Sai-Juan Chen, C. Volpe, Hiroshi Nunokawa, Yanchu Wang, Vladislav Sharov, Xiaoshan Jiang, Abusleme, A, Adam, T, Ahmad, S, Ahmed, R, Aiello, S, Akram, M, An, F, An, G, An, Q, Andronico, G, Anfimov, N, Antonelli, V, Antoshkina, T, Asavapibhop, B, de Andre, J, Auguste, D, Babic, A, Baldini, W, Barresi, A, Baussan, E, Bellato, M, Bergnoli, A, Bernieri, E, Birkenfeld, T, Blin, S, Blum, D, Blyth, S, Bolshakova, A, Bongrand, M, Bordereau, C, Breton, D, Brigatti, A, Brugnera, R, Bruno, R, Budano, A, Buscemi, M, Busto, J, Butorov, I, Cabrera, A, Cai, H, Cai, X, Cai, Y, Cai, Z, Cammi, A, Campeny, A, Cao, C, Cao, G, Cao, J, Caruso, R, Cerna, C, Chang, J, Chang, Y, Chen, P, Chen, S, Chen, X, Chen, Y, Chen, Z, Cheng, J, Cheng, Y, Chiesa, D, Chimenti, P, Chukanov, A, Chuvashova, A, Claverie, G, Clementi, C, Clerbaux, B, Lorenzo, S, Corti, D, Costa, S, Corso, F, Dalager, O, Taille, C, Deng, J, Deng, Z, Depnering, W, Diaz, M, Ding, X, Ding, Y, Dirgantara, B, Dmitrievsky, S, Dohnal, T, Donchenko, G, Dong, J, Dornic, D, Doroshkevich, E, Dracos, M, Druillole, F, Du, S, Dusini, S, Dvorak, M, Enqvist, T, Enzmann, H, Fabbri, A, Fajt, L, Fan, D, Fan, L, Fang, C, Fang, J, Fargetta, M, Fatkina, A, Fedoseev, D, Fekete, V, Feng, L, Feng, Q, Ford, R, Formozov, A, Fournier, A, Gan, H, Gao, F, Garfagnini, A, Gottel, A, Genster, C, Giammarchi, M, Giaz, A, Giudice, N, Giuliani, F, Gonchar, M, Gong, G, Gong, H, Gorchakov, O, Gornushkin, Y, Grassi, M, Grewing, C, Gromov, V, Gu, M, Gu, X, Gu, Y, Guan, M, Guardone, N, Gul, M, Guo, C, Guo, J, Guo, W, Guo, X, Guo, Y, Hackspacher, P, Hagner, C, Han, R, Han, Y, Hassan, M, He, M, He, W, Heinz, T, Hellmuth, P, Heng, Y, Herrera, R, Hong, D, Hor, Y, Hou, S, Hsiung, Y, Hu, B, Hu, H, Hu, J, Hu, S, Hu, T, Hu, Z, Huang, C, Huang, G, Huang, H, Huang, Q, Huang, W, Huang, X, Huang, Y, Hui, J, Huo, L, Huo, W, Huss, C, Hussain, S, Insolia, A, Ioannisian, A, Isocrate, R, Jelmini, B, Jen, K, Ji, X, Jia, H, Jia, J, Jian, S, Jiang, D, Jiang, X, Jin, R, Jing, X, Jollet, C, Joutsenvaara, J, Jungthawan, S, Kalousis, L, Kampmann, P, Kang, L, Karagounis, M, Kazarian, N, Khan, A, Khan, W, Khosonthongkee, K, Kinz, P, Korablev, D, Kouzakov, K, Krasnoperov, A, Krokhaleva, S, Krumshteyn, Z, Kruth, A, Kutovskiy, N, Kuusiniemi, P, Lachenmaier, T, Landini, C, Leblanc, S, Lebrin, V, Lefevre, F, Lei, R, Leitner, R, Leung, J, Li, D, Li, F, Li, H, Li, J, Li, K, Li, M, Li, N, Li, Q, Li, R, Li, S, Li, T, Li, W, Li, X, Li, Y, Li, Z, Liang, H, Liang, J, Liebau, D, Limphirat, A, Limpijumnong, S, Lin, G, Lin, S, Lin, T, Ling, J, Lippi, I, Liu, F, Liu, H, Liu, J, Liu, M, Liu, Q, Liu, R, Liu, S, Liu, X, Liu, Y, Lokhov, A, Lombardi, P, Lombardo, C, Loo, K, Lu, C, Lu, H, Lu, J, Lu, S, Lu, X, Lubsandorzhiev, B, Lubsandorzhiev, S, Ludhova, L, Luo, F, Luo, G, Luo, P, Luo, S, Luo, W, Lyashuk, V, Ma, Q, Ma, S, Ma, X, Maalmi, J, Malyshkin, Y, Mantovani, F, Manzali, F, Mao, X, Mao, Y, Mari, S, Marini, F, Marium, S, Martellini, C, Martin-Chassard, G, Martini, A, Mayilyan, D, Muller, A, Mednieks, I, Meng, Y, Meregaglia, A, Meroni, E, Meyhofer, D, Mezzetto, M, Miller, J, Miramonti, L, Monforte, S, Montini, P, Montuschi, M, Morozov, N, Muhammad, W, Muralidharan, P, Nastasi, M, Naumov, D, Naumova, E, Navas-Nicolas, D, Nemchenok, I, Ning, F, Ning, Z, Nunokawa, H, Oberauer, L, Ochoa-Ricoux, J, Olshevskiy, A, Orestano, D, Ortica, F, Pan, H, Paoloni, A, Parkalian, N, Parmeggiano, S, Payupol, T, Pei, Y, Pelliccia, N, Peng, A, Peng, H, Perrot, F, Petitjean, P, Petrucci, F, Rico, L, Pilarczyk, O, Popov, A, Poussot, P, Pratumwan, W, Previtali, E, Qi, F, Qi, M, Qian, S, Qian, X, Qiao, H, Qin, Z, Qiu, S, Rajput, M, Ranucci, G, Raper, N, Re, A, Rebber, H, Rebii, A, Ren, B, Ren, J, Rezinko, T, Ricci, B, Robens, M, Roche, M, Rodphai, N, Romani, A, Roskovec, B, Roth, C, Ruan, X, Rujirawat, S, Rybnikov, A, Sadovsky, A, Saggese, P, Salamanna, G, Sanfilippo, S, Sangka, A, Sanguansak, N, Sawangwit, U, Sawatzki, J, Sawy, F, Schever, M, Schuler, J, Schwab, C, Schweizer, K, Selivanov, D, Selyunin, A, Serafini, A, Settanta, G, Settimo, M, Shao, Z, Sharov, V, Shi, J, Shutov, V, Sidorenkov, A, Simkovic, F, Sirignano, C, Siripak, J, Sisti, M, Slupecki, M, Smirnov, M, Smirnov, O, Sogo-Bezerra, T, Songwadhana, J, Soonthornthum, B, Sotnikov, A, Sramek, O, Sreethawong, W, Stahl, A, Stanco, L, Stankevich, K, Stefanik, D, Steiger, H, Steinmann, J, Sterr, T, Stock, M, Strati, V, Studenikin, A, Sun, G, Sun, S, Sun, X, Sun, Y, Suwonjandee, N, Szelezniak, M, Tang, J, Tang, Q, Tang, X, Tietzsch, A, Tkachev, I, Tmej, T, Treskov, K, Triossi, A, Troni, G, Trzaska, W, Tuve, C, van Waasen, S, van den Boom, J, Vanroyen, G, Vassilopoulos, N, Vedin, V, Verde, G, Vialkov, M, Viaud, B, Volpe, C, Vorobel, V, Votano, L, Walker, P, Wang, C, Wang, E, Wang, G, Wang, J, Wang, K, Wang, L, Wang, M, Wang, R, Wang, S, Wang, W, Wang, X, Wang, Y, Wang, Z, Watcharangkool, A, Wei, L, Wei, W, Wei, Y, Wen, L, Wiebusch, C, Wong, S, Wonsak, B, Wu, D, Wu, F, Wu, Q, Wu, W, Wu, Z, Wurm, M, Wurtz, J, Wysotzki, C, Xi, Y, Xia, D, Xiao, M, 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Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), JUNO, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de 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Martin-Chassard G., Martini A., Mayilyan D., Muller A., Mednieks I., Meng Y., Meregaglia A., Meroni E., Meyhofer D., Mezzetto M., Miller J., Miramonti L., Monforte S., Montini P., Montuschi M., Morozov N., Muhammad W., Muralidharan P., Nastasi M., Naumov D.V., Naumova E., Navas-Nicolas D., Nemchenok I., Ning F., Ning Z., Nunokawa H., Oberauer L., Ochoa-Ricoux J.P., Olshevskiy A., Orestano D., Ortica F., Pan H.-R., Paoloni A., Parkalian N., Parmeggiano S., Payupol T., Pei Y., Pelliccia N., Peng A., Peng H., Perrot F., Petitjean P.-A., Petrucci F., Rico L.F.P., Pilarczyk O., Popov A., Poussot P., Pratumwan W., Previtali E., Qi F., Qi M., Qian S., Qian X., Qiao H., Qin Z., Qiu S., Rajput M., Ranucci G., Raper N., Re A., Rebber H., Rebii A., Ren B., Ren J., Rezinko T., Ricci B., Robens M., Roche M., Rodphai N., Romani A., Roskovec B., Roth C., Ruan X., Rujirawat S., Rybnikov A., Sadovsky A., Saggese P., Salamanna G., Sanfilippo S., Sangka A., Sanguansak N., Sawangwit U., Sawatzki J., Sawy F., Schever M., Schuler J., Schwab C., Schweizer K., Selivanov D., Selyunin A., Serafini A., Settanta G., Settimo M., Shao Z., Sharov V., Shi J., Shutov V., Sidorenkov A., Simkovic F., Sirignano C., Siripak J., Sisti M., Slupecki M., Smirnov M., Smirnov O., Sogo-Bezerra T., Songwadhana J., Soonthornthum B., Sotnikov A., Sramek O., Sreethawong W., Stahl A., Stanco L., Stankevich K., Stefanik D., Steiger H., Steinmann J., Sterr T., Stock M.R., Strati V., Studenikin A., Sun G., Sun S., Sun X., Sun Y., Suwonjandee N., Szelezniak M., Tang J., Tang Q., Tang X., Tietzsch A., Tkachev I., Tmej T., Treskov K., Triossi A., Troni G., Trzaska W., Tuve C., van Waasen S., van den Boom J., Vanroyen G., Vassilopoulos N., Vedin V., Verde G., Vialkov M., Viaud B., Volpe C., Vorobel V., Votano L., Walker P., Wang C., Wang C.-H., Wang E., Wang G., Wang J., Wang K., Wang L., Wang M., Wang R., Wang S., Wang W., Wang X., Wang Y., Wang Z., Watcharangkool A., Wei L., Wei W., Wei Y., Wen L., Wiebusch C., Wong S.C.-F., Wonsak B., Wu D., Wu F., Wu Q., Wu W., Wu Z., Wurm M., Wurtz J., Wysotzki C., Xi Y., Xia D., Xiao M., Xie Y., Xie Z., Xing Z., Xu B., Xu C., Xu D., Xu F., Xu J., Xu M., Xu Y., Yan B., Yan X., Yan Y., Yang A., Yang C., Yang H., Yang J., Yang L., Yang X., Yang Y., Yao H., Yasin Z., Ye J., Ye M., Ye Z., Yegin U., Yermia F., Yi P., Yin X., You Z., Yu B., Yu C., Yu H., Yu M., Yu X., Yu Z., Yuan C., Yuan Y., Yuan Z., Yue B., Zafar N., Zambanini A., Zeng S., Zeng T., Zeng Y., Zhan L., Zhang F., Zhang G., Zhang H., Zhang J., Zhang P., Zhang Q., Zhang S., Zhang T., Zhang X., Zhang Y., Zhang Z., Zhao F., Zhao J., Zhao R., Zhao S., Zhao T., Zheng D., Zheng H., Zheng M., Zheng Y., Zhong W., Zhou J., Zhou L., Zhou N., Zhou S., Zhou X., Zhu J., Zhu K., Zhuang H., Zong L., Zou J., Abusleme, A., Adam, T., Ahmad, S., Ahmed, R., Aiello, S., Akram, M., An, F., An, G., An, Q., Andronico, G., Anfimov, N., Antonelli, V., Antoshkina, T., Asavapibhop, B., de Andre, J. 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L., Deng, J., Deng, Z., Depnering, W., Diaz, M., Ding, X., Ding, Y., Dirgantara, B., Dmitrievsky, S., Dohnal, T., Donchenko, G., Dong, J., Dornic, D., Doroshkevich, E., Dracos, M., Druillole, F., Du, S., Dusini, S., Dvorak, M., Enqvist, T., Enzmann, H., Fabbri, A., Fajt, L., Fan, D., Fan, L., Fang, C., Fang, J., Fargetta, M., Fatkina, A., Fedoseev, D., Fekete, V., Feng, L. -C., Feng, Q., Ford, R., Formozov, A., Fournier, A., Gan, H., Gao, F., Garfagnini, A., Gottel, A., Genster, C., Giammarchi, M., Giaz, A., Giudice, N., Giuliani, F., Gonchar, M., Gong, G., Gong, H., Gorchakov, O., Gornushkin, Y., Grassi, M., Grewing, C., Gromov, V., Gu, M., Gu, X., Gu, Y., Guan, M., Guardone, N., Gul, M., Guo, C., Guo, J., Guo, W., Guo, X., Guo, Y., Hackspacher, P., Hagner, C., Han, R., Han, Y., Hassan, M., He, M., He, W., Heinz, T., Hellmuth, P., Heng, Y., Herrera, R., Hong, D., Hor, Y., Hou, S., Hsiung, Y., Hu, B. -Z., Hu, H., Hu, J., Hu, S., Hu, T., Hu, Z., Huang, C., Huang, G., Huang, H., Huang, Q., Huang, W., Huang, X., Huang, Y., Hui, J., Huo, L., Huo, W., Huss, C., Hussain, S., Insolia, A., Ioannisian, A., Isocrate, R., Jelmini, B., Jen, K. -L., Ji, X., Jia, H., Jia, J., Jian, S., Jiang, D., Jiang, X., Jin, R., Jing, X., Jollet, C., Joutsenvaara, J., Jungthawan, S., Kalousis, L., Kampmann, P., Kang, L., Karagounis, M., Kazarian, N., Khan, A., Khan, W., Khosonthongkee, K., Kinz, P., Korablev, D., Kouzakov, K., Krasnoperov, A., Krokhaleva, S., Krumshteyn, Z., Kruth, A., Kutovskiy, N., Kuusiniemi, P., Lachenmaier, T., Landini, C., Leblanc, S., Lebrin, V., Lefevre, F., Lei, R., Leitner, R., Leung, J., Li, D., Li, F., Li, H., Li, J., Li, K., Li, M., Li, N., Li, Q., Li, R., Li, S., Li, T., Li, W., Li, X., Li, Y., Li, Z., Liang, H., Liang, J., Liebau, D., Limphirat, A., Limpijumnong, S., Lin, G. -L., Lin, S., Lin, T., Ling, J., Lippi, I., Liu, F., Liu, H., Liu, J., Liu, M., Liu, Q., Liu, R., Liu, S., Liu, X., Liu, Y., Lokhov, A., Lombardi, P., Lombardo, C., Loo, K., Lu, C., Lu, H., Lu, J., Lu, S., Lu, X., Lubsandorzhiev, B., Lubsandorzhiev, S., Ludhova, L., Luo, F., Luo, G., Luo, P., Luo, S., Luo, W., Lyashuk, V., Ma, Q., Ma, S., Ma, X., Maalmi, J., Malyshkin, Y., Mantovani, F., Manzali, F., Mao, X., Mao, Y., Mari, S. 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Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, measurement methods, scintillation counter: liquid, energy resolution, FOS: Physical sciences, Photodetector, Scintillator, 01 natural sciences, NO, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), hal-03022811, PE2_2, Optics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Calibration, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Astrophysique, Jiangmen Underground Neutrino Observatory, Physics, JUNO, liquid [scintillation counter], 010308 nuclear & particles physics, business.industry, Settore FIS/01 - Fisica Sperimentale, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Linearity, Instrumentation and Detectors (physics.ins-det), calibration, Neutrino Detectors and Telescopes (experiments), lcsh:QC770-798, High Energy Physics::Experiment, Neutrino, business, Energy (signal processing)
Abstract

We present the calibration strategy for the 20 kton liquid scintillator central detector of the Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional calibration program, in combination with a novel dual calorimetry technique exploiting two independent photosensors and readout systems, we demonstrate that the JUNO central detector can achieve a better than 1% energy linearity and a 3% effective energy resolution, required by the neutrino mass ordering determination. [Figure not available: see fulltext.], 0, info:eu-repo/semantics/published

Published
2021

21. The dependence of the spectroscopic properties of orcein dyes on solvent proticity: insights from theory and experiments

Author

Filippo De Angelis, Francesca Nunzi, Federica Daus, Fausto Elisei, Aldo Romani, and Catia Clementi

Subjects
Hydrogen bond, Chemistry, General Physics and Astronomy, 02 engineering and technology, Time-dependent density functional theory, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, 01 natural sciences, 0104 chemical sciences, Solvent, chemistry.chemical_compound, Deprotonation, Bathochromic shift, Molecule, Physical and Theoretical Chemistry, Absorption (chemistry), 0210 nano-technology, Protic solvent
Abstract

The electronic spectral properties of α-hydroxy-orcein (α-HO), one of the main components of the orcein dye, have been extensively investigated in solvents of different proticity through UV-Vis spectrophotometry combined with DFT and TDDFT calculations. The results highlight the occurrence of an acid-base equilibrium between the neutral (absorption maximum at 475 nm) and the monoanionic (absorption maximum at 578 nm) forms of the molecule. The position of this equilibrium was found to be sensitively dependent on solvent proticity, solution concentration and pH. Quantum mechanical calculations support the rationalization of the experimental data, confirming the key role of the protic solvent in shifting the acid-base equilibrium, through the establishment of hydrogen bond interactions on specific functional groups of the dye. Both deprotonation and dye coordination with protic solvent molecules determine the reduction of the HOMO-LUMO energy gap (0.71 eV), that can be related with the bathochromic effect envisaged both experimentally (0.59 eV) and theoretically (0.50 eV).

Published
2021

22. Synthesis of Luminescent Fused Imidazole Bicyclic Acetic Esters by a Multicomponent Palladium Iodide-Catalyzed Oxidative Alkoxycarbonylation Approach

Author

Bartolo Gabriele, Fausto Ortica, Lucia Veltri, Patrizio Russo, Tommaso Prestia, Catia Clementi, and Paola Vitale

Subjects
chemistry.chemical_classification, multicomponent reaction, Bicyclic molecule, Organic Chemistry, Iodide, chemistry.chemical_element, Oxidative phosphorylation, carbonylation, palladium, Combinatorial chemistry, Catalysis, Inorganic Chemistry, chemistry.chemical_compound, chemistry, luminescent compounds, bicyclic heterocycles, Imidazole, Physical and Theoretical Chemistry, Luminescence, Carbonylation, Palladium
Published
2021

23. Embedded readout electronics R&D for the large PMTs in the JUNO experiment

Author

Claudio Lombardo, S. Parmeggiano, Salvatore Costa, Jianrun Hu, Cristina Martellini, Nicomede Pelliccia, D. Corti, Andrea Fabbri, Xiongbo Yan, M. Mezzetto, Paolo Lombardi, Davide Chiesa, A. Garfagnini, Antonio Cammi, Roberto Isocrate, Jianmeng Dong, Anatael Cabrera, Alessandra Re, Jochen Steinmann, Z. Ning, Antonio Bergnoli, Andrea Serafini, Cecilia Landini, Augusto Brigatti, Monica Sisti, Zhang Chen, Jinnan Zhang, Fausto Ortica, S. van Waasen, Z. M. Wang, Giuseppe Verde, Giuseppe Salamanna, F. Li, Agnese Giaz, A. Brugnera, Antonio Budano, Michele Montuschi, Wenlu Wei, Song Chen, Yuman Wang, Richard Ford, M. Bellato, A. Stahl, Y. Yang, Marco Giammarchi, L. Stanco, E. Meroni, W. Bandini, Filippo Marini, P. Saggese, G. Galet, Ivano Lippi, Vitaly Shutov, Vito Antonelli, Alessandro Paoloni, D. Riondino, Barbara Clerbaux, Markus Robens, Cristina Tuve, S. Dusini, Andrey Formozov, Xuefeng Ding, G. Settanta, G. H. Gong, Fabio Mantovani, D. Pedretti, Giovanni Fiorentini, A. Barresi, Massimiliano Nastasi, Ezio Previtali, Barbara Ricci, Agnese Martini, Gioacchino Ranucci, Rossella Caruso, Yury Malyshkin, A. Aiello, A. Andronico, Pierre-Alexandre Petitjean, Chiara Sirignano, Virginia Strati, Xiaoshan Jiang, S. M. Mari, L. Votano, Lino Miramonti, Fatma Sawy, Alexander Olshevskiy, Y. J. Sun, Marco Fargetta, Aldo Romani, Riccardo Bruno, Christian Grewing, Paolo Montini, Marco Grassi, Catia Clementi, F. Dal Corso, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Bellato, M., Bergnoli, A., Brugnera, A., Chen, S., Chen, Z., Clerbaux, B., dal Corso, F., Corti, D., Dong, J., Galet, G., Garfagnini, A., Giaz, A., Gong, G., Grewing, C., Hu, J., Isocrate, R., Jiang, X., Li, F., Lippi, I., Marini, F., Ning, Z., Olshevskiy, A., Pedretti, D., Petitjean, P. A., Robens, M., Shutov, V., Stahl, A., Steinmann, J., Sun, Y., van Waasen, S., Wang, Y., Wang, Z., Wei, W., Yan, X., Yang, Y., Aiello, A., Andronico, A., Antonelli, V., Bandini, W., Brigatti, A., Barresi, A., Budano, A., Bruno, R., Cabrera, A., Cammi, A., Caruso, R., Chiesa, D., Clementi, C., Costa, S., Ding, X., Dusini, S., Fabbri, A., Fargetta, M., Fiorentini, G., Ford, R., Formozov, A., Giammarchi, M., Grassi, M., Landini, C., Lombardi, P., Lombardo, C., Malyshkin, Y., Mantovani, F., Mari, S. M., Martellini, C., Martini, A., Meroni, E., Mezzetto, M., Miramonti, L., Montini, P., Montuschi, M., Nastasi, M., Ortica, F., Paoloni, A., Parmeggiano, S., Pelliccia, N., Previtali, E., Ranucci, G., Riondino, D., Re, A. C., Ricci, B., Romani, A., Saggese, P., Salamanna, G., Sawy, F. H., Serafini, A., Settanta, G., Sirignano, C., Sisti, M., Stanco, L., Strati, V., Tuvé, C., Verde, G., Votano, L., and Zhang, J.

Subjects
Nuclear and High Energy Physics, Photomultiplier, Physics - Instrumentation and Detectors, Electronics, Large scale neutrino experiment, Physics::Instrumentation and Detectors, scintillation counter: liquid, 01 natural sciences, 7. Clean energy, NO, High Energy Physics - Experiment, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Electronics, Photomultiplier, Large scale neutrino experiment, Instrumentation, Jiangmen Underground Neutrino Observatory, Physics, JUNO, 010308 nuclear & particles physics, Dynamic range, business.industry, Detector, Electrical engineering, Linearity, Analog signal, electronics: readout, Neutrino, business, performance, electronics: design
Abstract

Jiangmen Underground neutrino Observatory (JUNO) is a next generation liquid scintillator neutrino experiment under construction phase in South China. Thanks to the anti-neutrinos produced by the nearby nuclear power plants, JUNO will primarily study the neutrino mass hierarchy, one of the open key questions in neutrino physics. One key ingredient for the success of the measurement is to use high speed, high resolution sampling electronics located very close to the detector signal. Linearity in the response of the electronics in another important ingredient for the success of the experiment. During the initial design phase of the electronics, a custom design, with the Front-End and Read-Out electronics located very close to the detector analog signal has been developed and successfully tested. The present paper describes the electronics structure and the first tests performed on the prototypes. The electronics prototypes have been tested and they show good linearity response, with a maximum deviation of 1.3% over the full dynamic range (1-1000 p.e.), fulfilling the JUNO experiment requirements., Comment: 20 pages, 15 figures

Published
2021

24. FPGA Implementation of an NCO Based CDR for the JUNO Front-End Electronics

Author

Antonio Bergnoli, Monica Sisti, Antonio Budano, Michele Montuschi, D. Riondino, Andrey Formozov, A. Cammi, Ezio Previtali, Fabio Mantovani, Barbara Ricci, Agnese Giaz, Rossella Caruso, L. Stanco, S. Parmeggiano, Marco Danilo Claudio Torri, P. Saggese, S. Dusini, W. Bandini, Ivano Lippi, D. Corti, Andrea Fabbri, Cristina Tuve, Andrea Serafini, Cecilia Landini, Richard Ford, L. Votano, M. Mezzetto, Lino Miramonti, Massimiliano Nastasi, D. Basilico, Fausto Ortica, Marco Giammarchi, G. H. Gong, A. Brigatti, Chiara Sirignano, Alessandro Paoloni, M. Bellato, Paolo Lombardi, Xuefeng Ding, Salvatore Costa, Virginia Strati, Jianrun Hu, Xiaoshan Jiang, Andrea Barresi, Agnese Martini, G. Andronico, S. M. Mari, Roberto Isocrate, Sebastiano Aiello, Alessandra Re, Jianmeng Dong, Nicomede Pelliccia, R. Brugnera, Claudio Lombardo, B. Caccianiga, Marco Fargetta, Aldo Romani, Riccardo Bruno, Paolo Montini, Marco Grassi, Catia Clementi, Davide Chiesa, A. Garfagnini, Vito Antonelli, F. Dal Corso, Gioacchino Ranucci, Giuseppe Verde, Cristina Martellini, E. Meroni, Filippo Marini, K. von Sturm, Marini, F., Bellato, M., Bergnoli, A., Brugnera, R., Dal Corso, F., Corti, D., Dong, J., Garfagnini, A., Giaz, A., Gong, G., Hu, J., Isocrate, R., Jiang, X., Lippi, I., Von Sturm, K., Aiello, S., Andronico, G., Antonelli, V., Bandini, W., Basilico, D., Brigatti, A., Barresi, A., Budano, A., Bruno, R., Caccianiga, B., Cammi, A., Caruso, R., Chiesa, D., Clementi, C., Costa, S., Ding, X., Dusini, S., Fabbri, A., Fargetta, M., Ford, R., Formozov, A., Giammarchi, M., Grassi, M., Landini, C., Lombardi, P., Lombardo, C., Mantovani, F., Mari, S. M., Martellini, C., Martini, A., Meroni, E., Mezzetto, M., Miramonti, L., Montini, P., Montuschi, M., Nastasi, M., Ortica, F., Paoloni, A., Parmeggiano, S., Pelliccia, N., Previtali, E., Ranucci, G., Riondino, D., Re, A. C., Ricci, B., Romani, A., Saggese, P., Serafini, A., Sirignano, C., Sisti, M., Stanco, L., Strati, V., Torri, M., Tuve, C., Verde, G., Votano, L., Marini, F, Bellato, M, Bergnoli, A, Brugnera, R, Dal Corso, F, Corti, D, Dong, J, Garfagnini, A, Giaz, A, Gong, G, Hu, J, Isocrate, R, Jiang, X, Lippi, I, Von Sturm, K, Aiello, S, Andronico, G, Antonelli, V, Bandini, W, Basilico, D, Brigatti, A, Barresi, A, Budano, A, Bruno, R, Caccianiga, B, Cammi, A, Caruso, R, Chiesa, D, Clementi, C, Costa, S, Ding, X, Dusini, S, Fabbri, A, Fargetta, M, Ford, R, Formozov, A, Giammarchi, M, Grassi, M, Landini, C, Lombardi, P, Lombardo, C, Mantovani, F, Mari, S, Martellini, C, Martini, A, Meroni, E, Mezzetto, M, Miramonti, L, Montini, P, Montuschi, M, Nastasi, M, Ortica, F, Paoloni, A, Parmeggiano, S, Pelliccia, N, Previtali, E, Ranucci, G, Riondino, D, Re, A, Ricci, B, Romani, A, Saggese, P, Serafini, A, Sirignano, C, Sisti, M, Stanco, L, Strati, V, Torri, M, Tuve, C, Verde, G, and Votano, L

Subjects
Nuclear and High Energy Physics, phase aligner (PA), Clock signal, Computer science, Clock rate, CDR, Clock and data recovery (CDR), eye pattern, field-programmable gate array (FPGA), numerically-controlled oscillator (NCO), phase detector (PD), Phase detector, Digital clock, NO, PE2_2, Electrical and Electronic Engineering, Field-programmable gate array, Clock recovery, CDR ,NCO , phase detector, phase aligner , FPGA , eye pattern, FPGA, Jitter, phase aligner, business.industry, Detector, Nuclear Energy and Engineering, NCO, phase detector, business, Computer hardware
Abstract

This article describes a design of an field-programmable gate array (FPGA) implementation of a clock and data recovery (CDR) system. The core will be integrated in the FPGA configuration for the front-end electronics (FEE) board of the Jiangmen underground neutrino observatory (JUNO) experiment. The front-end will be placed on the main detector, underground and underwater, making the electronics not accessible after installation. The timing and trigger system relies on a synchronous link connection over CAT5e cable (up to 100 m long) between the front-end and the back-end electronics (BEE), where a twisted-pair is dedicated to clock-forwarding. The robustness of the recovery clock system is essential for the stability of the FPGA firmware. The proposed project is intended to improve the clock recovery operation by increasing the immunity of the link to sudden electromagnetic interference (EMI). On top of this, the core allows to free a twisted-pair in the link, since the clock can be recovered from the data and there is no more need for a clock-dedicated transmission. This will optimize the link granting the possibility to implement other features. The design is based on two components: a numerically-controlled oscillator (NCO), in order to create a controlled frequency clock signal, and a digital phase detector (PD) to match the clock frequency with the data rate. NCOs are often coupled with a digital-to-analog converter (DAC) to create direct digital synthesizers (DDSs), which are able to produce analog waveforms of any desired frequency. In the presented case instead, the NCO generates a digital clock signal of an arbitrary frequency, while the PD manages this frequency by intercepting any shifting on the relative phase between the clock and the data. A phase aligner (PA) module guarantees that data are sampled in the middle of the eye pattern, which represents the optimal sampling point. The article presents an overview of the NCO-based CDR design and implementation, together with some tests and results in order to verify the CDR reliability. Moreover, in the last section, some other possible applications of the core are illustrated.

Published
2021

25. Use of a Zwitterionic Surfactant to Improve the Biofunctional Properties of Wool Dyed with an Onion (Allium cepa L.) Skin Extract

Author

Lucia Pucciarini, Marco Gargaro, Roccaldo Sardella, Virginia Brighenti, Chiara Puri, Federica Pellati, Catia Clementi, Matteo Tiecco, Claudia Volpi, and Raimondo Germani

Subjects
Biofunctional textiles, Physiology, DPPH, surfactant, Clinical Biochemistry, antioxidant activity, 02 engineering and technology, Absorption (skin), 010402 general chemistry, Antioxidant activity, Flavonoids, Onion, Quercetin, Surfactant, Waste, 01 natural sciences, Biochemistry, quercetin, Absorbance, chemistry.chemical_compound, Pulmonary surfactant, Bathochromic shift, Phenol, waste, Molecular Biology, onion, Chromatography, ABTS, lcsh:RM1-950, Cell Biology, biofunctional textiles, 021001 nanoscience & nanotechnology, 0104 chemical sciences, lcsh:Therapeutics. Pharmacology, chemistry, flavonoids, Dyeing, 0210 nano-technology
Abstract

To improve the loadability and antioxidant properties of wool impregnated with onion skin extract, the introduction of SB3-14 surfactant in the dyeing process was evaluated. A preliminary investigation on the surfactant&ndash, quercetin interaction indicated that the optimal conditions for dye solubility, stability, and surfactant affinity require double-distilled water (pH = 5.5) as a medium and SB3-14 in a concentration above the c.m.c. (2.5 &times, 10&minus, 3 M). The absorption profile of textiles showed the flavonoid absorption band (390 nm) and a bathochromic feature (510 nm), suggesting flavonoid aggregates. The higher absorbance for the sample dyed with SB3-14 indicated greater dye uptake, which was further confirmed by HPLC analysis. The Folin&ndash, Ciocalteu method was applied to evaluate the total phenol content (TPC) released from the treated wool, while the assays FRAP, DPPH, ABTS, and ORAC were applied to evaluate the corresponding total antioxidant activity (TAC). Higher TPCs (about 20%) and TACs (5&ndash, 55%) were measured with SB3-14, highlighting textiles with improved biofunctional properties. Spectrophotometric analyses were also performed with an artificial sweat. The potential cytotoxic effect of SB3-14 in both monomeric and aggregated forms, cell viability, and induction of apoptosis were evaluated in RAW 264.7 cells. These analyses revealed that SB3-14 is safe at concentrations below the c.m.c.

Published
2020

26. Tyrian purple in archaeological textiles: DMF extraction and recrystallization for the Raman identification of precursors and derivatives

Author

Brenda Doherty, Witold Nowik, Catia Clementi, and Costanza Miliani

Subjects
Recrystallization (geology), Chemistry, Extraction (chemistry), 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Archaeology, 0104 chemical sciences, symbols.namesake, chemistry.chemical_compound, symbols, Hplc pda, General Materials Science, Extraction methods, Indirubin, 0210 nano-technology, Raman spectroscopy, Spectroscopy
Abstract

The prized ancient dyestuff, Tyrian purple, has been extensively and widely studied by multiple spectroscopic and chromatographic methods alike. In this paper, an extraction method adopted by liquid chromatography by using N,N-dimethylformamide is proposed as a sample pre-treatment for the characterization of minor reference brominated and unsubstituted isatin and indirubin components by micro-Raman spectroscopy. The method has been validated for the identification of these constituents in accordance with HPLC PDA measurements on a series of Tyrian purple-dyed wool, silk and cotton textiles and in archaeological samples from the Roman period. It results specifically effective in cases when high-scattering dibromoindigoids are not revealed and when main indigoid spectral features, seemingly of plant origin, can only be reasonably hypothesized by conventional Raman. This method also innovatively highlights the possible presence of carotenoids and porphyrin-type copper and iron complexes, noted in marine molluscs, and potentially opening a new perspective to the current diagnostics of Tyrian purple through its biomarkers in the cultural heritage domain. Copyright © 2017 John Wiley & Sons, Ltd.

Published
2017

27. Onion (Allium cepa L.) Skin: A Rich Resource of Biomolecules for the Sustainable Production of Colored Biofunctional Textiles

Author

Federica Ianni, Claudia Volpi, Virginia Brighenti, Roccaldo Sardella, Lucia Pucciarini, Marco Gargaro, Benedetto Natalini, Federica Pellati, Catia Clementi, and Valentina Petesse

Subjects
Antioxidant, medicine.medical_treatment, Pharmaceutical Science, antioxidant activity, 02 engineering and technology, Antioxidants, Mass Spectrometry, Analytical Chemistry, Lipid peroxidation, chemistry.chemical_compound, Mice, Drug Discovery, Allium cepa L, Antioxidant activity, Biofunctional textiles, Onion skin, Phenolics, Photo-oxidative damage, Chemistry (miscellaneous), Molecular Medicine, 3003, Drug Discovery3003 Pharmaceutical Science, Physical and Theoretical Chemistry, Organic Chemistry, Onions, Food science, Gallic acid, Glycosides, Skin, 0303 health sciences, integumentary system, biology, onion skin, food and beverages, 021001 nanoscience & nanotechnology, photo-oxidative damage, Spectrophotometry, Textile Industry, Allium, Quercetin, 0210 nano-technology, Cell Survival, phenolics, Radiation-Protective Agents, Wool Fiber, Article, lcsh:QD241-441, 03 medical and health sciences, lcsh:Organic chemistry, Gallic Acid, medicine, Animals, Humans, 030304 developmental biology, Plant Extracts, fungi, Polyphenols, biofunctional textiles, biology.organism_classification, RAW 264.7 Cells, chemistry, Polyphenol, Trolox, Lipid Peroxidation, Dyeing
Abstract

The aqueous extract of dry onion skin waste from the &lsquo, Dorata di Parma&rsquo, cultivar was tested as a new source of biomolecules for the production of colored and biofunctional wool yarns, through environmentally friendly dyeing procedures. Specific attention was paid to the antioxidant and UV protection properties of the resulting textiles. On the basis of spectrophotometric and mass spectrometry analyses, the obtained deep red-brown color was assigned to quercetin and its glycoside derivatives. The Folin&ndash, Ciocalteu method revealed good phenol uptakes on the wool fiber (higher than 27% for the textile after the first dyeing cycle), with respect to the original total content estimated in the water extract (78.50 &plusmn, 2.49 mg equivalent gallic acid/g onion skin). The manufactured materials showed remarkable antioxidant activity and ability to protect human skin against lipid peroxidation following UV radiation: 7.65 &plusmn, 1.43 (FRAP assay) and 13.60 (ORAC assay) mg equivalent trolox/g textile, lipid peroxidation inhibition up to 89.37%. This photoprotective and antioxidant activity were therefore ascribed to the polyphenol pool contained in the outer dried gold skins of onion. It is worth noting that citofluorimetric analysis demonstrated that the aqueous extract does not have a significative influence on cell viability, neither is capable of inducing a proapoptotic effect.

Published
2019

28. Distillation and stripping pilot plants for the JUNO neutrino detector: Design, operations and reliability

Author

D. Corti, Andrea Fabbri, Giuseppe Verde, S. Bussino, H. Steiger, R. Pompilio, Yury Malyshkin, L. Votano, E. Bernier, Nicomede Pelliccia, R. Brugnera, Aldo Romani, A. Mengucci, Lino Miramonti, Augusto Brigatti, E. Meroni, Filippo Marini, Salvatore Monforte, Chiara Sirignano, Monica Sisti, Andrey Formozov, Gioacchino Ranucci, Marco Grassi, D. Riondino, Agnese Giaz, Davide Chiesa, A. Garfagnini, Alessandra Re, R. Gaigher, Paolo Montini, Catia Clementi, Ezio Previtali, Massimiliano Nastasi, S. Parmeggiano, Barbara Ricci, Fabio Mantovani, R. J. Ford, Marco Giammarchi, Rossella Caruso, Giuseppe Salamanna, Mario Buscemi, P. Saggese, G. Galet, Ivano Lippi, Antonio Budano, Giovanni Fiorentini, F. Dal Corso, Wilfried Depnering, Fausto Ortica, Cristina Martellini, S. Franke, Jari Joutsenvaara, Giulio Settanta, Stefano Maria Mari, Vito Antonelli, Roberto Isocrate, Virginia Strati, G. Andronico, Paolo Lombardi, Alessandro Paoloni, Agnese Martini, Fatma Sawy, Luca Stanco, M. Montuschi, D. Pedretti, Xuefeng Ding, A. Insolia, M. Mezzetto, Marica Baldoncini, M. Bellato, S. Dusini, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Lombardi, P, Montuschi, M, Formozov, A, Brigatti, A, Parmeggiano, S, Pompilio, R, Depnering, W, Franke, S, Gaigher, R, Joutsenvaara, J, Mengucci, A, Meroni, E, Steiger, H, Mantovani, F, Ranucci, G, Andronico, G, Antonelli, V, Baldoncini, M, Bellato, M, Bernier, E, Brugnera, R, Budano, A, Buscemi, M, Bussino, S, Caruso, R, Chiesa, D, Clementi, C, Corti, D, Dal Corso, F, Ding, X, Dusini, S, Fabbri, A, Fiorentini, G, Ford, R, Galet, G, Garfagnini, A, Giammarchi, M, Giaz, A, Grassi, M, Insolia, A, Isocrate, R, Lippi, I, Malyshkin, Y, Mari, S, Marini, F, Martellini, C, Martini, A, Mezzetto, M, Miramonti, L, Monforte, S, Montini, P, Nastasi, M, Ortica, F, Paoloni, A, Pedretti, D, Pelliccia, N, Previtali, E, Re, A, Ricci, B, Riondino, D, Romani, A, Saggese, P, Salamanna, G, Sawy, F, Settanta, G, Sisti, M, Sirignano, C, Stanco, L, Strati, V, Verde, G, Votano, L, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Lombardi, P., Montuschi, M., Formozov, A., Brigatti, A., Parmeggiano, S., Pompilio, R., Depnering, W., Franke, S., Gaigher, R., Joutsenvaara, J., Mengucci, A., Meroni, E., Steiger, H., Mantovani, F., Ranucci, G., Andronico, G., Antonelli, V., Baldoncini, M., Bellato, M., Bernier, E., Brugnera, R., Budano, A., Buscemi, M., Bussino, S., Caruso, R., Chiesa, D., Clementi, C., Corti, D., Dal Corso, F., Ding, X. F., Dusini, S., Fabbri, A., Fiorentini, G., Ford, R., Galet, G., Garfagnini, A., Giammarchi, M., Giaz, A., Grassi, M., Insolia, A., Isocrate, R., Lippi, I., Malyshkin, Y., Mari, S. M., Marini, F., Martellini, C., Martini, A., Mezzetto, M., Miramonti, L., Monforte, S., Montini, P., Nastasi, M., Ortica, F., Paoloni, A., Pedretti, D., Pelliccia, N., Previtali, E., Re, A. C., Ricci, B., Riondino, D., Romani, A., Saggese, P., Salamanna, G., Sawy, F. H., Settanta, G., Sisti, M., Sirignano, C., Stanco, L., Strati, V., Verde, G., Votano, L., Lombardi P., Montuschi M., Formozov A., Brigatti A., Parmeggiano S., Pompilio R., Depnering W., Franke S., Gaigher R., Joutsenvaara J., Mengucci A., Meroni E., Steiger H., Mantovani F., Ranucci G., Andronico G., Antonelli V., Baldoncini M., Bellato M., Bernier E., Brugnera R., Budano A., Buscemi M., Bussino S., Caruso R., Chiesa D., Clementi C., Corti D., Dal Corso F., Ding X.F., Dusini S., Fabbri A., Fiorentini G., Ford R., Galet G., Garfagnini A., Giammarchi M., Giaz A., Grassi M., Insolia A., Isocrate R., Lippi I., Malyshkin Y., Mari S.M., Marini F., Martellini C., Martini A., Mezzetto M., Miramonti L., Monforte S., Montini P., Nastasi M., Ortica F., Paoloni A., Pedretti D., Pelliccia N., Previtali E., Re A.C., Ricci B., Riondino D., Romani A., Saggese P., Salamanna G., Sawy F.H., Settanta G., Sisti M., Sirignano C., Stanco L., Strati V., Verde G., and Votano L.

Subjects
Large-scale experiment, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Liquid scintillator, Attenuation length, LAB, Large-scale experiments, Light yield, Nitrogen purging, Radiopurity, Scintillator transparency, Instrumentation, scintillation counter: liquid, Mixing (process engineering), Full scale, FOS: Physical sciences, fabrication, Scintillator, 01 natural sciences, 7. Clean energy, Stripping (fiber), law.invention, NO, law, 0103 physical sciences, thorium: admixture, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Process engineering, Distillation, background: radioactivity, Nuclear and High Energy Physic, Physics, JUNO, 010308 nuclear & particles physics, business.industry, uranium: admixture, Settore FIS/01 - Fisica Sperimentale, Instrumentation and Detectors (physics.ins-det), Neutrino detector, Neutrino, business, aluminum: oxygen
Abstract

This paper describes the design, construction principles and operations of the distillation and stripping pilot plants tested at the Daya Bay Neutrino Laboratory, with the perspective to adapt these processes, system cleanliness and leak-tightness standards to the final full scale plants to be used for the purification of the liquid scintillator of the JUNO neutrino detector. The main goal of these plants is to remove radio impurities from the liquid scintillator while increasing its optical attenuation length. Purification of liquid scintillator will be performed with a system combining alumina oxide, distillation, water extraction and steam (or N 2 gas) stripping. Such a combined system will aim at obtaining a total attenuation length greater than 20 m @430 nm, and a bulk radiopurity for 238U and 232Th in the 10−15 ÷ 10−17 g/g range. The pilot plants commissioning and operation have also provided valuable information on the degree of reliability of their main components, which will be particularly useful for the design of the final full scale purification equipment for the JUNO liquid scintillator. This paper describes two of the five pilot plants since the Alumina Column, fluorescent material mixing and the Water Extraction plants are being developed by the Chinese part of the collaboration.

Published
2019

29. Transient absorption spectroscopic studies on 4-nitroquinoline N-oxide: From femtoseconds to microseconds timescale

Author

Miguel A. Miranda, Catia Clementi, Susana Encinas, Neus Duran-Giner, Fausto Elisei, Benedetta Carlotti, Ministerio de Economía y Competitividad (España), and Generalitat Valenciana

Subjects
Heterocyclic amines, Chemistry, QUIMICA INORGANICA, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Analytical Chemistry, Electron transfer, Microsecond, QUIMICA ORGANICA, 4-Nitroquinoline N-oxide, Ultrafast laser spectroscopy, Femtosecond, Atomic physics, Transient absorption spectroscopy, 0210 nano-technology, Instrumentation, Femtosecond laser flash photolysis, Spectroscopy
Abstract

The singlet excited state of 4-nitroquinoline N-oxide ( NQNO*) has been characterized by different spectroscopic techniques, combining transient absorption with steady state and time-resolved emission spectroscopy. The energy of NQNO* has been established as 255 kJ/mol from the fluorescence spectrum, whereas its lifetime has been found to be 10 ps in the femto-laser flash photolysis (LFP) experiments, where a characteristic S –S absorption band with maximum centered at 425 nm is observed. In a first stage, the triplet excited state of NQNO ( NQNO*) has also been characterized by emission spectroscopy in solid matrix, at low temperature. Thus, from the steady-state phosphorescence spectrum the triplet energy has been estimated as 183 kJ/mol, whereas the setup with time resolution has allowed us to determine the phosphorescence lifetime as 3 ms. Formation of NQNO* by intersystem crossing in solution at room temperature, has been monitored by femto-LFP, which shows the appearance of a band with maximum at 560 nm (T -T ). It increases with the decreasing intensity of its precursor 425 nm (S –S ) band, giving rise to an isosbestic point at 500 nm. The characterization of NQNO* has been completed by nano-LFP, using xanthone as photosensitizer and oxygen as well as β-carotene as quenchers. In addition, quenching of NQNO* by electron donors (DABCO) is also observed in aprotic solvents, leading to the radical anion of NQNO ([rad] NQNO). If there is a proton source in the medium (Et N as electron donor or MeCN:H O/4:1 as solvent system) protonation of the radical anion results in formation of the neutral radical of NQNO ([rad]NQNOH). In general, all processes are slower in protic solvents because of the solvation sphere. Overall, this information provides a deeper insight into the formation and behavior of excited states and radical ionic species derived from the title molecule NQNO., The work was financially supported by the Regional Government of Generalitat Valenciana (PROMETEO/2017/075) as well as the Spanish Government Science Department with the CTQ-2016-78875-P and CTQ-2009-13699 projects and the N. D.-G. fellowship (BES-2010-035875). BC, CC and FE acknowledge MIUR and the University of Perugia for financial support to the project AMIS, through the program “Dipartimenti di Eccellenza – 2018–2022”.

Published
2019

30. Nanoseconds Timing System Based on IEEE 1588 FPGA Implementation

Author

Antonio Insolia, Enrico Bernieri, Alessandro Paoloni, G. Salamanna, Antonio Budano, Marco Giammarchi, Virginia Strati, Lino Miramonti, Andrey Formozov, C. Sirignano, R. Brugnera, D. Pedretti, Ezio Previtali, Marco Bellato, Andrea Fabbri, Giulio Settanta, F. Dal Corso, Barbara Ricci, Fabio Mantovani, Fatma Sawy, Paolo Lombardi, R. Ford, M. Buscemi, Paolo Montini, Severino Angelo Maria Bussino, Marco Grassi, Rossella Caruso, Catia Clementi, Fausto Ortica, Cristina Martellini, S. Dusini, Monica Sisti, Roberto Isocrate, Agnese Giaz, Ashlie Martini, Salvatore Monforte, A. Brigatti, Daniele Corti, Marica Baldoncini, Massimiliano Nastasi, Alessandra Re, Giuseppe Andronico, Aldo Romani, Stefano Maria Mari, Vito Antonelli, Xuefeng Ding, G. Galet, Ivano Lippi, Davide Chiesa, A. Garfagnini, Giuseppe Verde, E. Meroni, Filippo Marini, Gioacchino Ranucci, Luca Stanco, M. Montuschi, Antonio Bergnoli, Pedretti D., Bellato M., Isocrate R., Bergnoli A., Brugnera R., Corti D., Dal Corso F., Galet G., Garfagnini A., Giaz A., Lippi I., Marini F., Andronico G., Antonelli V., Baldoncini M., Bernieri E., Brigatti A., Budano A., Buscemi M., Bussino S., Caruso R., Chiesa D., Clementi C., Ding X.F., Dusini S., Fabbri A., Ford R., Formozov A., Giammarchi M., Grassi M., Insolia A., Lombardi P., Mantovani F., Mari S.M., Martellini C., Martini A., Meroni E., Miramonti L., Monforte S., Montini P., Montuschi M., Nastasi M., Ortica F., Paoloni A., Previtali E., Ranucci G., Re A.C., Ricci B., Romani A., Salamanna G., Sawy F.H., Settanta G., Sisti M., Sirignano C., Stanco L., Strati V., Verde G., Pedretti, D, Bellato, M, Isocrate, R, Bergnoli, A, Brugnera, R, Corti, D, Dal Corso, F, Galet, G, Garfagnini, A, Giaz, A, Lippi, I, Marini, F, Andronico, G, Antonelli, V, Baldoncini, M, Bernieri, E, Brigatti, A, Budano, A, Buscemi, M, Bussino, S, Caruso, R, Chiesa, D, Clementi, C, Ding, X, Dusini, S, Fabbri, A, Ford, R, Formozov, A, Giammarchi, M, Grassi, M, Insolia, A, Lombardi, P, Mantovani, F, Mari, S, Martellini, C, Martini, A, Meroni, E, Miramonti, L, Monforte, S, Montini, P, Montuschi, M, Nastasi, M, Ortica, F, Paoloni, A, Previtali, E, Ranucci, G, Re, A, Ricci, B, Romani, A, Salamanna, G, Sawy, F, Settanta, G, Sisti, M, Sirignano, C, Stanco, L, Strati, V, Verde, G, Pedretti, D., Bellato, M., Isocrate, R., Bergnoli, A., Brugnera, R., Corti, D., Dal Corso, F., Galet, G., Garfagnini, A., Giaz, A., Lippi, I., Marini, F., Andronico, G., Antonelli, V., Baldoncini, M., Bernieri, E., Brigatti, A., Budano, A., Buscemi, M., Bussino, S., Caruso, R., Chiesa, D., Clementi, C., Ding, X. F., Dusini, S., Fabbri, A., Ford, R., Formozov, A., Giammarchi, M., Grassi, M., Insolia, A., Lombardi, P., Mantovani, F., Mari, S. M., Martellini, C., Martini, A., Meroni, E., Miramonti, L., Monforte, S., Montini, P., Montuschi, M., Nastasi, M., Ortica, F., Paoloni, A., Previtali, E., Ranucci, G., Re, A. C., Ricci, B., Romani, A., Salamanna, G., Sawy, F. H., Settanta, G., Sisti, M., Sirignano, C., Stanco, L., Strati, V., and Verde, G.

Subjects
Ethernet, FOS: Computer and information sciences, Nuclear and High Energy Physics, Eye diagram, field-programmable gate arrays (FPGAs), front-end electronics, hardware, synchronization, timing system, front-end electronic, Serial communication, Data buffer, Network topology, 01 natural sciences, Clock synchronization, NO, Computer Science - Networking and Internet Architecture, PE2_2, 0103 physical sciences, Synchronization (computer science), Electrical and Electronic Engineering, Networking and Internet Architecture (cs.NI), 010308 nuclear & particles physics, business.industry, Settore FIS/01 - Fisica Sperimentale, Nuclear Energy and Engineering, Precision Time Protocol, business, Computer hardware, Data link layer
Abstract

Clock synchronization procedures are mandatory in most physical experiments where event fragments are readout by spatially dislocated sensors and must be glued together to reconstruct key parameters (e.g. energy, interaction vertex etc.) of the process under investigation. These distributed data readout topologies rely on an accurate time information available at the frontend, where raw data are acquired and tagged with a precise timestamp prior to data buffering and central data collecting. This makes the network complexity and latency, between frontend and backend electronics, negligible within upper bounds imposed by the frontend data buffer capability. The proposed research work describes an FPGA implementation of IEEE 1588 Precision Time Protocol (PTP) that exploits the CERN Timing, Trigger and Control (TTC) system as a multicast messaging physical and data link layer. The hardware implementation extends the clock synchronization to the nanoseconds range, overcoming the typical accuracy limitations inferred by computers Ethernet based Local Area Network (LAN). Establishing a reliable communication between master and timing receiver nodes is essential in a message-based synchronization system. In the backend electronics, the serial data streams synchronization with the global clock domain is guaranteed by an hardware-based finite state machine that scans the bit period using a variable delay chain and finds the optimal sampling point. The validity of the proposed timing system has been proved in point-to-point data links as well as in star topology configurations over standard CAT-5e cables. The results achieved together with weaknesses and possible improvements are hereby detailed., Comment: 8 pages, 14 figures, proceedings of 21st IEEE Real Time Conference Colonial Williamsburg 9-15 June 2018

Published
2019

31. The Role of pH in Modulating the Electronic State Properties of Minocycline Drug and Its Inclusion within Micellar Carriers

Author

Catia Clementi, Alessio Cesaretti, Benedetta Carlotti, and Fausto Elisei

Subjects
INTRAMOLECULAR-CHARGE-TRANSFER, DENSITY-FUNCTIONAL THEORY, PROTON-TRANSFER REACTION, PHOTOPHYSICAL PROPERTIES, TETRACYCLINE DERIVATIVES, Absorption spectroscopy, Electrons, Minocycline, Protonation, 02 engineering and technology, 010402 general chemistry, Photochemistry, 01 natural sciences, Micelle, Fluorescence, Molecule, Physical and Theoretical Chemistry, Spectroscopy, Micelles, Equilibrium constant, Drug Carriers, Molecular Structure, Chemistry, Hydrogen-Ion Concentration, 021001 nanoscience & nanotechnology, Tautomer, Anti-Bacterial Agents, 0104 chemical sciences, Intramolecular force, Quantum Theory, Protons, 0210 nano-technology
Abstract

A detailed investigation of the spectral and photophysical properties of minocycline (MC) in water at different pHs, solvents of different polarity, and micellar surfactant solutions was carried out in this study. An unusual behavior was highlighted with respect to other tetracyclines due to the presence of an additional dimethylamino group in the MC molecular structure. In particular, four equilibrium constants associated with mono-deprotonation reactions were characterized by steady-state spectroscopy. Femtosecond time-resolved pump-probe and fluorescence up-conversion measurements allowed the dynamics of the lowest excited singlet state of the five different acid-base species of MC to be characterized in terms of lifetimes and transient spectra. Two emissive species associated with keto-enol tautomerism resulting from excited-state intramolecular proton transfer (ESIPT) were revealed with time constants of a few and tens of picoseconds. TD-DFT quantum mechanical calculations were also performed to define the state order and nature of the differently protonated species, together with their absorption spectra. The role of pH proved to be fundamental in modulating the drug charge and therefore the interaction with cationic micelles where the neutral form of MC, that is the biologically active one, resulted efficiently included.

Published
2016

32. Surface enhanced Raman spectroscopic investigation of orchil dyed wool fromRoccella tinctoriaandLasallia pustulata

Author

Antonio Sgamellotti, Costanza Miliani, B. G. Brunetti, Catia Clementi, Dominique Cardon, Brenda Doherty, and Francesca Gabrieli

Subjects
Chromatography, biology, Chemistry, Lasallia pustulata, Surface-enhanced Raman spectroscopy, biology.organism_classification, Roccella tinctoria, Isatis tinctoria, symbols.namesake, Wool, symbols, General Materials Science, Dyeing, Raman spectroscopy, Spectroscopy
Abstract

In this work Raman spectroscopic techniques have been utilized to characterize the vibrational spectral features of orchil dyed wool samples. Specifically, it is noted by surface enhanced Raman spectroscopy that wool dyed purple with two historically used orchil species (Roccella tinctoria and Lasallia pustulata) show spectral differences possibly owing to their specific dye-precursor constituents. The additional natural dyestuff woad (Isatis tinctoria L.) overdyeing the R. tinctoria orchil dyed wool is a further challenge when distinguishing the mixed dye components given by the co-adsorption of the dyestuffs as permitted by the selection rules of surface enhanced Raman spectroscopy. Furthermore, the effects of dilution of the L. pustulata species in its spectral detection have been assessed along with the evaluation of subsequent lichen extract boiling before dyeing which resulted in the detection of a degraded form of the orchil dye. Proof of concept included the surface enhanced Raman spectroscopy (SERS) investigation of a purple dyed tapestry (XVI century) which permitted an aged orchil dye to be determined. This contribution utilizes SERS as a fast, reproducible and specific method for both orchil dye detection and alteration induced by degradation. Copyright © 2014 John Wiley & Sons, Ltd.

Published
2014

33. Carthamus tinctorius L.: A photophysical study of the main coloured species for artwork diagnostic purposes

Author

Gloria Basconi, Roberto Maria Pellegrino, Aldo Romani, and Catia Clementi

Subjects
Chromatography, biology, Chemistry, Process Chemistry and Technology, General Chemical Engineering, Carthamus, Spectral properties, Mineralogy, biology.organism_classification, Mass spectrometry, Diode array, Pigment, chemistry.chemical_compound, visual_art, visual_art.visual_art_medium, Anhydrosafflor yellow B, Carthamin
Abstract

In this work a spectrophotometric and fluorimetric study of yellow and red extracts from Carthamus tinctorius L. in solution and on dyed textiles is reported. The red dye, precipitated as an insoluble organic pigment, was also characterized as powder substrate and on painting mock-ups using different pictorial techniques based on the use of diverse binders. The dyestuffs were directly extracted from dried petals of Carthamus flowers following ancient recipes adapted for laboratory use. The main quinochalcone dyes (hydroxysafflor yellow A, safflor yellow A, anhydrosafflor yellow B and carthamin) were separated and isolated through both analytical and preparative High Performance Liquid Chromatography–Photo Diode Array and subsequently identified through Liquid Chromatography–Mass Spectrometry Quadrupole Time-Of-Flight analysis. The compounds were then studied in solution so as to supply information concerning the scarcely studied fluorescence of these materials. Based on the photophysical behaviour determined in solution, spectral properties of dyed textiles and pictorial mock-ups were discussed. The results obtained on red reference samples are of peculiar relevance for the non-invasive identification of carthamin whose specific absorption and emission features have been clearly detected on a 16th century tapestry fragment.

Published
2014

34. Effect of micellar and sol–gel media on the spectral and kinetic properties of tetracycline and its complexes with Mg2+

Author

Raimondo Germani, Fausto Elisei, Alessio Cesaretti, Catia Clementi, and Benedetta Carlotti

Subjects
Aqueous solution, Chemistry, Ultrafast laser spectroscopy, Analytical chemistry, Microemulsion, Self-assembly, Soft matter, Physical and Theoretical Chemistry, Absorption (chemistry), Spectroscopy, Photochemistry, Micelle
Abstract

The spectroscopic and photophysical properties of the broad-spectrum antibiotic tetracycline (TC) and its Mg2+ complexes were studied in organized media attained by means of three iso-structural quaternary ammonium surfactants able to self-assemble in water at low c.m.c. values, thus giving spherical micelles and sol–gel media upon increasing the concentration. Specific protonated forms of TC and its complexes were introduced in these micro-heterogeneous environments and then investigated through steady-state (both in absorption and emission) and pulsed (up to femtosecond resolution) spectroscopic techniques. Free TC showed minor spectral and kinetic variations while complexes remained unchanged in the presence of spherical micelles, meaning that TC is likely to be placed at the interface between the micelle and the bulk aqueous solution, without altering its bioactivity. Ultrafast transient absorption spectroscopy proved to be a powerful tool to gain deep insight into the distribution of the investigated species between the heterogeneous structure of sol–gel media. In fact, according to the polarity and net charge of free TC and its complexes, these species can be mostly found in the hydrophobic (intertwined worm-like micelles) or in the hydrophilic domains (basically aqueous pools) that the sol–gel is made up of. In the first case, the properties are dramatically altered (highly enhanced fluorescence and lengthened lifetime of the first singlet excited state up to the nanosecond time scale), leading to the improved traceability of the drug.

Published
2014

35. Doxycycline and oxytetracycline loading of a zwitterionic amphoteric surfactant-gel and their controlled release

Author

Catia Clementi, Pier Luigi Gentili, Raimondo Germani, Fausto Elisei, Benedetta Carlotti, and Alessio Cesaretti

Subjects
Chemistry, Molecular Conformation, General Physics and Astronomy, Oxytetracycline, Protonation, Hydrogen-Ion Concentration, Permeation, Combinatorial chemistry, Controlled release, Micelle, Drug vehicle, Drug Liberation, Surface-Active Agents, Pulmonary surfactant, Doxycycline, Self-healing hydrogels, Organic chemistry, Chelation, Protons, Physical and Theoretical Chemistry, Gels, Dimethylamines
Abstract

Oxytetracycline (OX) and doxycycline (DX) are antibiotics belonging to the family of tetracyclines. We present a UV-Visible steady state and time-resolved experimental study of OX and DX and their biologically active Mg(2+) complexes loaded within a hydrogel matrix. Hydrogels are a three dimensional network of worm-like micelles, mutually intertwined, forming a pattern of hydrophobic domains and water pools. We resorted to a hydrogel, made of a zwitterionic N-oxide surfactant (p-dodecyloxybenzyldimethylamine N-oxide, pDoAO), which showed promising features as a drug vehicle. The spectral and photophysical properties of the drugs are significantly altered by the inclusion in the hydrophobic domains of the gel and these variations are indicators of the permeation ratio of the drug in between the micelles forming the gel network. We thus get a clear picture of the distribution of the drug molecules and metal chelates into the two different kinds of environment, where the hydrophobic domains are also able to cause a gel-induced deprotonation of these two drugs. Furthermore, the amphoteric nature of the surfactant is responsible for its peculiar acid-base behaviour: under acidic pH conditions, the surfactant gets protonated and the stability of the gel network is damaged. This feature can be thus exploited for the pH controlled release of the tetracycline drugs.

Published
2014

36. Study of Raman scattering and luminescence properties of orchil dye for its nondestructive identification on artworks

Author

Roberto Maria Pellegrino, Catia Clementi, Marco Paolantoni, Brunetto Giovanni Brunetti, Costanza Miliani, Aldo Romani, Francesca Rosi, and Witold Nowik

Subjects
Resonance Raman spectroscopy, Analytical chemistry, Lightfastness, Mass spectrometry, Fluorescence, chemistry.chemical_compound, symbols.namesake, chemistry, symbols, General Materials Science, Raman spectroscopy, Luminescence, Orcein, Spectroscopy, Raman scattering
Abstract

Ultraviolet and visible (UV-vis) fluorescence and subtracted shifted Raman spectroscopy have exploited to identify orchil in a fragment from the ninth century Bible de Theodulphe and a parchment fragment sampled from a 16th century map of Auvergne. Orchil is a purple lichen dye widely used since ancient times in place of the more expensive Tyrian purple and therefore known as the ‘poor person's purple’. Unlike the latter, orchil has a low lightfastness, and in ancient works, it is often faded. Orchil is a complex mixture of different coloured compounds, and they all share a common structure resulting from phenoxazone with a number of different substituents. In this work, UV-vis fluorescence combined with resonance Raman spectroscopy allowed for the identification of orchil in a fragment from the ninth century Bible de Theodulphe. Raman spectroscopy has been applied also for studying a parchment fragment sampled from a 16th century map of Auvergne. In both cases, subtracted shifted Raman spectroscopy (SSRS) has been exploited for removing the strong fluorescence background. Overall results have been confirmed by liquid chromatography with quadrupole time-of-flight mass spectrometry (LC/ QTOF-MS). Both the electronic and vibrational spectral features of ancient orchil showed some interesting differences with respect to those of the standard sample. Taking into account the poor lightfastness of the purple dye, the same investigation has been carried out on photochemically aged orchil reproducing the spectral modification observed on the ancient fragments. Copyright © 2013 John Wiley & Sons, Ltd.

Published
2013

37. Towards a semiquantitative non invasive characterisation of Tyrian purple dye composition: Convergence of UV-Visible reflectance spectroscopy and fast-high temperature-high performance liquid chromatography with photodiode array detection

Author

Athénaïs Davantès, Dominique Cardon, Marek Trojanowicz, Witold Nowik, Aldo Romani, Pierre Chaminade, Catia Clementi, Department of Chemistry, University of Perugia, Istituto di Scienze e Tecnologie Molecolari = Institute of Molecular Science and Technologies (ISTM-CNR [Perugia - Milano]), Laboratoire de recherche des monuments historiques (LRMH), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Histoire, Archéologie et Littératures des mondes chrétiens et musulmans médiévaux (CIHAM), École normale supérieure de Lyon (ENS de Lyon)-Université Lumière - Lyon 2 (UL2)-École des hautes études en sciences sociales (EHESS)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Avignon Université (AU)-Centre National de la Recherche Scientifique (CNRS), Faculty of Chemistry [Warsaw], University of Warsaw (UW), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL), Groupe de Chimie Analytique de Paris-Sud, Université Paris-Sud - Paris 11 (UP11), and École normale supérieure - Lyon (ENS Lyon)-Université Lumière - Lyon 2 (UL2)-École des hautes études en sciences sociales (EHESS)-Université Jean Moulin - Lyon 3 (UJML)

Subjects
Hot Temperature, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, Archaeological textile, Reflectance spectroscopy, Analytical chemistry, Liquid chromatography, 02 engineering and technology, 01 natural sciences, Biochemistry, High-performance liquid chromatography, Analytical Chemistry, law.invention, UV-Visible spectroscopy, Ultraviolet visible spectroscopy, law, Tyrian purple, Partial least square (PLS) regression, non invasive diagnostics, Environmental Chemistry, Coloring Agents, Spectroscopy, Chromatography, High Pressure Liquid, ComputingMilieux_MISCELLANEOUS, Chromatography, Chemistry, 010401 analytical chemistry, Non invasive, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Photodiode, Composition (visual arts), Spectrophotometry, Ultraviolet, Correlation factor, Dyeing, 0210 nano-technology, [SHS.HIST]Humanities and Social Sciences/History
Abstract

In this paper, partial least square (PLS) regression is innovatively applied for a semi-quantitative non invasive study of the most precious dye of Antiquity: Tyrian purple. This original approach for the study of organic dyes in the cultural heritage field, is based on the correlation of spectrophotometric (UV-Visible) and chromatographic (Fast-HT-HPLC-PDA) data from an extensive set of textiles prepared with different snail species according to historical recipes. A cross-validated PLS model, based on the quantity of 6,6'-dibromoindigotin, displays an excellent correlation factor (R(2)Y = 0.987) between values determined by chromatography and those predicted from reflectance spectra. This indicates that the spectral features of Tyrian purple on textile fibre is strictly related to the amount of this indigoid component whose content may be non invasively predicted from reflectance spectrum. The studied correlation also highlights that, independently of the dyeing method and nature of the textile fibre used, the relative content of 6,6'-dibromindigotin may be used as a parameter to distinguish samples prepared with Hexaplex trunculus L. snails from those prepared with further mollusc species. To validate this model, archaeological textile fragments dating from the Roman period were successfully examined. The results achieved open an absolutely new way in Tyrian purple analysis in cultural heritage by non invasive spectroscopic techniques attesting their convergence with HPLC and giving them a semi-quantitative value.

Published
2016

38. Visible-induced luminescence imaging: A user-friendlymethod based on a system of interchangeable and tunable LED light sources

Author

Catia Clementi, F. Nucera, Aldo Romani, Manuela Vagnini, M. Azzarelli, and Alessia Daveri

Subjects
Near-infrared luminescence pigments, Materials science, Analytical chemistry, 02 engineering and technology, 01 natural sciences, Fluorescence, Analytical Chemistry, law.invention, Egyptian blue, chemistry.chemical_compound, law, Spectroscopy, Luminescence imaging LED light sources, Luminescence imaging LED light sources, Spectrofluorimetry, Near-infrared luminescence pigments, Fluorescence, Art polychromy, business.industry, 010401 analytical chemistry, 021001 nanoscience & nanotechnology, Emission intensity, Art polychromy, Titanate, 0104 chemical sciences, Wavelength, chemistry, Optoelectronics, Spectrofluorimetry, 0210 nano-technology, Luminescence, business, Excitation, Light-emitting diode
Abstract

Imaging techniques represent an unavoidable analytical tool for the non-invasive investigation of cultural heritage objects providing useful information for the identification and distribution of materials on the investigated surface. In particular, photo-induced luminescence imaging can give important indications as to the distribution of organic (binders, resins, dyes and lakes) and inorganic (Egyptian blue, Han blue, Han purple, zinc oxide, cadmium based pigments) constituting materials. Recently the use of LEDs, generating a narrow emission band in the Visible range, has been introduced opening up a new perspective in the detection of inorganic luminescent pigments. In this work we propose a user-friendly tool for luminescence acquisition based on the use of a custom made interchangeable and tunable LED light source system, that allows us to select both the power and the wavelength of the excitation light. The study involved the analysis of panel painting replicas prepared applying several pigments and lakes commonly used by artists in different historical periods. The luminescence images were recorded by a high sensitivity CCD camera and a Vidicon camera in the Visible and NIR range, under three excitation narrow bands (red LEDs at 630 nm; green LEDs at 517 nm and blue LEDs at 465 nm). The reliability of the developed experimental setup has been validated by spectrofluorimetric measurements. A very high correspondence between imaging and spectral response has been found concerning emission band position, emission intensity and excitation wavelength effect. Furthermore, the NIR luminescence of a modern yellow pigment, nickel titanate, has been for the first time documented. The defined methodology has been applied to the study of works of art of different historical periods where it has been proved to successfully detect luminescent inorganic and organic pigments, whose presence has been confirmed also by elemental analyses and spectrofluorimetry.

Published
2016

39. Front Matter

Author

Catia Clementi, Telma Costa, Rui Fausto, Gianna Favaro, Andrea Gómez-Zavaglia, Elizabeth J. Harbron, Linda J. Johnston, Kuppuswamy Kalyanasundaram, Andrea Maldotti, Costanza Miliani, Hiroaki Misawa, João Pina, Fausto Puntoriero, Aldo Romani, J. Sérgio Seixas de Melo, and Kosei Ueno

Published
2011

40. Non-invasive and micro-destructive investigation of the Domus Aurea wall painting decorations

Author

Cinzia Conti, Catia Clementi, Marisa Laurenzi Tabasso, Valeria Ciocan, Costanza Miliani, Manuela Vagnini, Brunetto Giovanni Brunetti, and Brenda Doherty

Subjects
Painting, Materials science, SERS, Non invasive, Mineralogy, Biochemistry, Analytical Chemistry, Egyptian blue, chemistry.chemical_compound, chemistry, Cinnabar, Elemental analysis, Roman wall painting, Bulk samples, Non-invasive analysis, Anthraquinonic lake, Non-invasive analysis, SERS, Roman wall painting, Egyptian blue, Anthraquinonic lake, Nuclear chemistry
Abstract

The paper reports on the exploitation of an educated multi-technique analytical approach based on a wide non invasive step followed by a focused micro-destructive step, aimed at the minimally invasive identification of the pigments decorating the ceiling of the Gilded Vault of the Domus Aurea in Rome. The combination of elemental analysis with molecular characterization provided by X-ray fluorescence and UV-vis spectroscopies, respectively, allowed for the in situ non-invasive identification of a remarkable number of pigments, namely Egyptian blue, green earth, cinnabar, red ochre and an anthraquinonic lake. The study was completed with the Raman analysis of two bulk samples, in particular, SERS measurements allowed for the speciation of the anthraquinonic pigment. Elemental mapping by scanning electron microscopy-energy dispersive spectrometer combined with micro-fluorimetry on cross-section gave an insight into both the distribution of different blend of pigments and on the nature of the inorganic support of the red dye.

Published
2011

41. Absorption and Emission of the Apigenin and Luteolin Flavonoids: A TDDFT Investigation

Author

Anna Amat, Antonio Sgamellotti, Filippo De Angelis, Catia Clementi, and Simona Fantacci

Subjects
Models, Molecular, Time Factors, Reseda luteola, biology, Absorption spectroscopy, Chemistry, Molecular Conformation, Electrons, Time-dependent density functional theory, Photochemistry, biology.organism_classification, Absorption, chemistry.chemical_compound, Intramolecular force, Excited state, Apigenin, Quantum Theory, Protons, Physics::Chemical Physics, Physical and Theoretical Chemistry, Luteolin, Absorption (electromagnetic radiation)
Abstract

The absorption and emission properties of the two components of the yellow color extracted from weld (Reseda luteola L.), apigenin and luteolin, have been extensively investigated by means of DFT and TDDFT calculations. Our calculations reproduce the absorption spectra of both flavonoids in good agreement with the experimental data and allow us to assign the transitions giving rise to the main spectral features. For apigenin, we have also computed the electronic spectrum of the monodeprotonated species, providing a rationale for the red-shift of the experimental spectrum with increasing pH. The fluorescence emission of both apigenin and luteolin has then been investigated. Excited-state TDDFT geometry optimizations have highlighted an excited-state intramolecular proton transfer (ESIPT) from the 5-hydroxyl to the 4-carbonyl oxygen of the substituted benzopyrone moiety. By computing the potential energy curves at the ground and excited states as a function of an approximate proton transfer coordinate for apigenin, we have been able to trace an ESIPT pathway and thus explain the double emission observed experimentally.

Published
2009

42. In-situ fluorimetry: A powerful non-invasive diagnostic technique for natural dyes used in artefacts

Author

Costanza Miliani, F. Morresi, Giovanna Favaro, U. Santamaria, K. Mlynarska, Catia Clementi, and Aldo Romani

Subjects
chemistry.chemical_compound, Polymer science, chemistry, Non invasive, The Renaissance, Reference laboratory, Dyeing, Instrumentation, Orcein, Spectroscopy, Atomic and Molecular Physics, and Optics, Indigo, Analytical Chemistry
Abstract

In this paper, three Renaissance tapestries depicting scenes painted by Raffaello Sanzio, conserved at the Vatican Museum, were investigated using in-situ UV–Visible fluorimetric measurements. The results show that this technique is suitable for the detection of natural organic colorants used for dyeing the threads woven in these tapestries. The emission signals detected on red–purple colours were assigned to the colorant orcein and those on different nuances of blue and green colours to indigo by comparison with data from reference laboratory samples. The assignments were supported by chromatographic experiments carried out on threads taken from the back side of the tapestry in the same points analysed by spectrofluorimentry.

Published
2009

43. In situ fluorimetry: A powerful non-invasive diagnostic technique for natural dyes used in artefacts

Author

Costanza Miliani, Giovanna Favaro, Aldo Romani, and Catia Clementi

Subjects
Textile, Polymer science, business.industry, Chemistry, The Renaissance, Atomic and Molecular Physics, and Optics, Fluorescence spectroscopy, Analytical Chemistry, Characterization (materials science), chemistry.chemical_compound, SILK, Colourant, Wool, business, Instrumentation, Orcein, Spectroscopy
Abstract

In this paper the potentialities of spectrophotometric and fluorimetric techniques for identifying the materials used in artistic textiles are investigated. A portable non-destructive instrument suitable to record fluorescence spectra on surfaces was set up and successfully experienced. A naturally occurring dye, orcein, which was widely used in antiquity for textile dyeing, has been spectrally characterized in both solution and powder. Laboratory samples of wool and silk orcein-dyed threads were analysed before and after ageing. An original fragment of Renaissance tapestry was also analysed. The textile (wool) and the colourant (orcein) were recognised by comparison with the data from the laboratory samples.

Published
2006

44. An NMR and UV–visible spectroscopic study of the principal colored component of Stil de grain lake

Author

Catia Clementi, C. Zuccaccia, and Aldo Romani

Subjects
ancient dye, luminescence properties, biology, Process Chemistry and Technology, General Chemical Engineering, Chemical structure, Analytical chemistry, Stil de grain lake, biology.organism_classification, Quercitrin, Stil de grain lake, ancient dye, luminescence properties, NMR advanced techniques, chemistry.chemical_compound, chemistry, Colored, NMR advanced techniques, Spectroscopy, Rhamnus, Absorption (electromagnetic radiation), Natural dye, Derivative (chemistry)
Abstract

Water extract from rhamnus berries ( Rhamnus catharticus ) is the base of Stil de grain lake (also called Buckthorn lake), an ancient dye used in textiles and in paintings. In this work, the main colored component of the lake was separated and its chemical structure determined by advanced NMR techniques. The results show that quercitrin, a glucoside derivative of quercetine (3,5,7,3′,4′-pentahydroxy-flavone) is the principal colored form. This result does not agree with previous literature assignments. In this work a characterization of quercitrin in methanol and in water as a function of pH was carried out by absorption and emission UV–visible spectroscopy.

Published
2006

45. Contents

Author

Catia Clementi, Telma Costa, Rui Fausto, Gianna Favaro, Andrea Gómez-Zavaglia, Elizabeth J. Harbron, Linda J. Johnston, Kuppuswamy Kalyanasundaram, Andrea Maldotti, Costanza Miliani, Hiroaki Misawa, João Pina, Fausto Puntoriero, Aldo Romani, J. Sérgio Seixas de Melo, and Kosei Ueno

Published
2011

46. Spectroscopic investigation of the pH controlled inclusion of doxycycline and oxytetracycline antibiotics in cationic micelles and their magnesium driven release

Author

Raimondo Germani, Alessio Cesaretti, Fausto Elisei, Benedetta Carlotti, Pier Luigi Gentili, and Catia Clementi

Subjects
Molecular Conformation, Oxytetracycline, Molecular Dynamics Simulation, Micelle, chemistry.chemical_compound, Methylamines, Surface-Active Agents, Pulmonary surfactant, Bromide, Materials Chemistry, medicine, Magnesium, Physical and Theoretical Chemistry, Microhetergeous media, Micelles, photophysics, Drug Carriers, Chromatography, Chemistry, Aqueous two-phase system, Hydrogen-Ion Concentration, Surfaces, Coatings and Films, Anti-Bacterial Agents, Drug Liberation, Spectrometry, Fluorescence, Absorption, Physicochemical, Doxycycline, Drug delivery, Spectrophotometry, Ultraviolet, Absorption (chemistry), Drug carrier, medicine.drug, Nuclear chemistry
Abstract

This work presents a steady-state and time-resolved UV-visible spectroscopic investigation of two antibiotics belonging to the family of tetracyclines (doxycycline and oxytetracycline) in the micellar medium provided by p-dodecyloxybenzyltrimethylammonium bromide (pDoTABr). The spectroscopic analysis has been performed in absorption and emission with femtosecond time resolution, and at pH 5.0 and 8.7 where doxycycline and oxytetracycline are present in their neutral-zwitterionic and monoanionic forms, respectively. The experimental data have been processed by sophisticated data mining methods such as global/target analysis and the maximum entropy method. The results unambiguously indicate that, when doxycycline and oxytetracycline are in their zwitterionic form, they are entrapped within the micelle, while when they are in their monoanionic form, they preferentially show a strong one-to-one interaction with the positively charged surfactant heads. Thus, the pH of the solution controls the inclusion of the investigated drugs into the micelle. When the drugs are entrapped inside the micelles, their spectroscopic and dynamical properties after photoexcitation change appreciably. Interestingly, the entrapped drugs are still able to strongly bind Mg(2+) cations, crucial in determining the biological functioning of tetracyclines. The femtosecond resolved measurements reveal that the drugs are efficiently pulled out of the micelles by Mg(2+). In fact, magnesium-tetracycline complexes are detected in the aqueous phase. The present study suggests the potential promising use of ammonium surfactant micelles embedding doxycycline and oxytetracycline as "smart" drug delivery systems allowing their pH controlled inclusion and Mg(2+) induced release.

Published
2014

47. Effect of micellar and sol-gel media on the spectral and kinetic properties of tetracycline and its complexes with Mg²⁺

Author

Alessio, Cesaretti, Benedetta, Carlotti, Catia, Clementi, Raimondo, Germani, and Fausto, Elisei

Subjects
Ions, Molecular Structure, Spectrum Analysis, Water, Hydrogen-Ion Concentration, Tetracycline, Absorption, Solutions, Kinetics, Surface-Active Agents, Calcitriol, Ammonium Compounds, Solvents, Magnesium, Hydrophobic and Hydrophilic Interactions, Micelles
Abstract

The spectroscopic and photophysical properties of the broad-spectrum antibiotic tetracycline (TC) and its Mg(2+) complexes were studied in organized media attained by means of three iso-structural quaternary ammonium surfactants able to self-assemble in water at low c.m.c. values, thus giving spherical micelles and sol-gel media upon increasing the concentration. Specific protonated forms of TC and its complexes were introduced in these micro-heterogeneous environments and then investigated through steady-state (both in absorption and emission) and pulsed (up to femtosecond resolution) spectroscopic techniques. Free TC showed minor spectral and kinetic variations while complexes remained unchanged in the presence of spherical micelles, meaning that TC is likely to be placed at the interface between the micelle and the bulk aqueous solution, without altering its bioactivity. Ultrafast transient absorption spectroscopy proved to be a powerful tool to gain deep insight into the distribution of the investigated species between the heterogeneous structure of sol-gel media. In fact, according to the polarity and net charge of free TC and its complexes, these species can be mostly found in the hydrophobic (intertwined worm-like micelles) or in the hydrophilic domains (basically aqueous pools) that the sol-gel is made up of. In the first case, the properties are dramatically altered (highly enhanced fluorescence and lengthened lifetime of the first singlet excited state up to the nanosecond time scale), leading to the improved traceability of the drug.

Published
2013

48. The Book of Kells: A non-invasive MOLAB investigation by complementary spectroscopic techniques

Author

Antonio Sgamellotti, Alessia Daveri, Susan Bioletti, Catia Clementi, Brunetto Giovanni Brunetti, Brenda Doherty, Aldo Romani, and Costanza Miliani

Subjects
Diagnostic information, Spectrophotometry, Infrared, Book Of Kells, Anhydrite, Nanotechnology, Calcium Sulfate, Orchil dye, Analytical Chemistry, Mobile laboratory, Organic chemistry, Instrumentation, Spectroscopy, Elemental composition, Manuscripts as Topic, Chemistry, Spectrum Analysis, Non invasive, In situ investigation, Spectrometry, X-Ray Emission, Atomic and Molecular Physics, and Optics, MOLAB, Spectrometry, Fluorescence, Organic dye, Portable instrumentation, Spectrophotometry, Ultraviolet, Laboratories
Abstract

This paper highlights the efficacy of non-invasive portable spectroscopy for assessing the execution technique and constituent materials in one of the most important medieval manuscripts, the Book of Kells. An aimed campaign of in situ measurements by the MObile LABoratory (MOLAB) has analyzed its elemental composition and vibrational and electronic molecular properties. The ample analytical toolbox has afforded complementary diagnostic information of the pigment palette permitting the characterization of both inorganic and organic materials as pigments and dyes in the white, purple, blue, red, orange, green and black areas. in particular, the novel widespread use of calcinated gypsum (anhydrite) as both a white pigment and in correlation to the organic dyes in this manuscript has been noted. The non-invasive identification of the organic dye orchil is significant considering its rare non invasive detection in medieval manuscripts. Finally the occurrence of particular alterations of the organic black areas giving rise to calcium carboxylate and calcium oxalate has been specifically highlighted. importantly, this work elaborates complex aspects of the employed painting materials which have given rise to numerous significant points of interest for a more elaborate understanding of this irish treasure. © 2013 Elsevier B.V. All rights reserved.

Published
2013

49. Colouring materials of pre-Columbian codices: non-invasive in situ spectroscopic analysis of the Codex Cospi

Author

David Buti, Aldo Romani, Davide Domenici, Federica Presciutti, Catia Clementi, Costanza Miliani, Francesca Rosi, L. Laurencich Minelli, Antonio Sgamellotti, C. Miliani, D. Domenici, C. Clementi, F. Presciutti, F. Rosi, D. Buti, A. Romani, L. Laurencich Minelli, and A. Sgamellotti

Subjects
Archeology, History, CODICI, Non invasive, Religious matters, TECNICHE ANALITICHE NON INVASIVE, Pre-Hispanic Mesoamerican codices, Cospi Codex, Non-invasive analysis, Orpiment, Colonialism, CONQUEST, orpiment, Extant taxon, MESOAMERICA, COSPI, COLORANTI, Parallels, Classics
Abstract

Ancient Mesoamerican codices represent the religious and historical legacy of the pre-Columbian people, they were produced to record the historical and religious matters. Codex Cospi, a divinatory book, is one of the fifteen extant pre-Hispanic Mesoamerican books which survived the destruction of the Spanish conquest. Thanks to the use of a set of portable non-invasive analytical techniques it was possible to study the Codex Cospi revealing valuable information on its constituting materials (dyes, pigments and substrates). The analytical results were compared with historical references contained in early colonial Mexican documents showing interesting parallels and providing hints for probable identification of colouring materials. (C)2011 Elsevier Ltd. All rights reserved.

Published
2012

50. Photoluminescence Properties of Zinc Oxide in Paints: A Study of the Effect of Self-Absorption and Passivation

Author

Brunetto Giovanni Brunetti, Costanza Miliani, Catia Clementi, Riccardo Vivani, Francesca Rosi, and Aldo Romani

Subjects
Materials science, Photoluminescence, Passivation, Oil paint, Analytical chemistry, chemistry.chemical_element, Infrared spectroscopy, Context (language use), 02 engineering and technology, Zinc, Photochemistry, 01 natural sciences, Zinc oxide, Spectroscopy, Instrumentation, 010401 analytical chemistry, Self-absorption, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, visual_art, visual_art.visual_art_medium, UV-VIS fluorescence, 0210 nano-technology, Luminescence
Abstract

Zinc oxide has been widely used as a white artist pigment since the end of the eighteenth century. The luminescence properties of this compound have received great interest during the last decades for promising applications in different fields of material science, but their diagnostic implications in the cultural-heritage context have been poorly exploited. This paper is intended to provide a clear picture of the luminescence behavior of zinc white in oil paintings. With this aim, three white pigments and three highly pure (analytical grade) zinc oxides were studied as powder substrates and as painting models by ultraviolet–visible (UV–VIS) fluorescence and Fourier transform infrared (FT-IR) spectroscopy. The quenching of the luminescence intensity of the UV excitonic emission due to self-absorption and multiple scattering phenomena has been investigated, pointing out the possible difficulty of detecting this signal with negative consequences in the diagnostics of works of art. By contrast, the UV emission is notably enhanced by interaction with the binder, whereas the visible emission decreases. This phenomenon is probably due to the formation of covalent bonds between zinc atoms and carboxylates from the lipidic medium that are chemisorbed on zinc oxide surfaces.

Published
2012

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