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374 results on '"Zhang, Xianpeng"'

2. Large and tunable magnetoresistance in van der Waals Ferromagnet/Semiconductor junctions

Author

Zhu, Wenkai, Zhu, Yingmei, Zhou, Tong, Zhang, Xianpeng, Lin, Hailong, Cui, Qirui, Yan, Faguang, Wang, Ziao, Deng, Yongcheng, Yang, Hongxin, Zhao, Lixia, Žutić, Igor, Belashchenko, Kirill D., and Wang, Kaiyou

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics
Abstract

Magnetic tunnel junctions (MTJs) with conventional bulk ferromagnets separated by a nonmagnetic insulating layer are key building blocks in spintronics for magnetic sensors and memory. A radically different approach of using atomically-thin van der Waals (vdW) materials in MTJs is expected to boost their figure of merit, the tunneling magnetoresistance (TMR), while relaxing the lattice-matching requirements from the epitaxial growth and supporting high-quality integration of dissimilar materials with atomically-sharp interfaces. We report TMR up to 192% at 10 K in all-vdW Fe3GeTe2/GaSe/Fe3GeTe2 MTJs. Remarkably, instead of the usual insulating spacer, this large TMR is realized with a vdW semiconductor GaSe. Integration of two-dimensional ferromagnets in semiconductor-based vdW junctions offers gate-tunability, bias dependence, magnetic proximity effects, and spin-dependent optical-selection rules. We demonstrate that not just the magnitude, but also the TMR sign is tuned by the applied bias or the semiconductor thickness, enabling modulation of highly spin-polarized carriers in vdW semiconductors.

Published
2023
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3. Measurement of the neutron flux of CSNS Back-n ES#1 under small collimators from 0.5 eV to 300 MeV

Author

Chen, Yonghao, Qiu, Yijia, Li, Qiang, Tang, Shengda, Yang, Yiwei, Ren, Zhizhou, Jiang, Wei, Fan, Ruirui, Yi, Han, Liu, Rong, Tang, Jingyu, Jing, Hantao, Lan, Changlin, Li, Yang, Tan, Zhixin, An, Qi, Bai, Jiangbo, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Zhen, Cui, Zengqi, Feng, Changqing, Gao, Keqing, Gao, Xiaolong, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Huang, Xiru, Jiang, Haoyu, Jiang, Zhijie, Kang, Ling, Li, Bo, Li, Chao, Li, Jiawen, Li, Xiao, Liu, Jie, Liu, Shubin, Liu, Xingyan, Long, Ze, Luan, Guangyuan, Ning, Changjun, Niu, Mengchen, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Sun, Zhijia, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Xiaoyun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhou, Luping, Zhou, Zhihao, and Zhu, Kejun

Published
2024
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6. Determination of the 232Th(n,γ) cross section from 10 to 200 keV at the Back-n facility at CSNS

Author

Wang, Jincheng, Ren, Jie, Jiang, Wei, Ruan, Xichao, Sun, Qi, Hu, Jifeng, Jiang, Bing, Bao, Jie, Zhang, Qiwei, Luan, Guangyuan, Huang, Hanxiong, Nie, Yangbo, Ge, Zhigang, An, Qi, Bai, Haofan, Bai, Jiangbo, Cao, Ping, Chen, Qiping, Chen, Yonghao, Chen, Zhen, Cui, Zengqi, Fan, Anchuan, Fan, Ruirui, Feng, Changqing, Feng, Fanzhen, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Jia, Weihua, Jiang, Haoyu, Jiang, Zhijie, Jin, Zhengyao, Kang, Ling, Li, Bo, Li, Chao, Li, Gong, Li, Jiawen, Li, Qiang, Li, Yang, Liu, Jie, Liu, Rong, Liu, Shubin, Ning, Changjun, Qi, Binbin, Ren, Zhizhou, Song, Zhaohui, Sun, Kang, Tan, Zhixin, Tang, Jingyu, Tang, Shengda, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Mohan, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Yue, Zhang, Zhiyong, Zhao, Maoyuan, Zhou, Luping, Zhu, Kejun, and Zhang, Jie

Published
2023
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7. Measurements of differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV

Author

Jiang, Haoyu, Jiang, Wei, Bai, Huaiyong, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Yi, Han, Ning, Changjun, Zhou, Liang, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Subjects
Nuclear Experiment
Abstract

Differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li, $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions have been measured at CSNS Back-n white neutron source. Two enriched (90%) $^{10}$B samples 5.0 cm in diameter and ~85.0 ${\mu}$g/cm$^{2}$ in thickness each with an aluminum backing were prepared, and back-to-back mounted at the sample holder. The charged particles were detected using the silicon-detector array of the Light-charged Particle Detector Array (LPDA) system. The neutron energy E$_{n}$ was determined by TOF (time-of-flight) method, and the valid ${\alpha}$ events were extracted from the E$_{n}$-Amplitude two-dimensional spectrum. With 15 silicon detectors, the differential cross sections of ${\alpha}$-particles were measured from 19.2{\deg} to 160.8{\deg}. Fitted with the Legendre polynomial series, the ($n, {\alpha}$) cross sections were obtained through integration. The absolute cross sections were normalized using the standard cross sections of the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the 0.3 - 0.5 MeV neutron energy region. The measurement neutron energy range for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction is 1.0 eV $\le$ En < 2.5 MeV (67 energy points), and for the $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions is 1.0 eV $\le$ En < 1.0 MeV (59 energy points). The present results have been analyzed by the resonance reaction mechanism and the level structure of the $^{11}$B compound system, and compared with existing measurements and evaluations., Comment: 19 pages, 34 figures, to be published in Chinese Physics C

Published
2019
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11. Measurement of the neutron beam profile of the Back-n white neutron facility at CSNS with a Micromegas detector

Author

Qi, Binbin, Li, Yang, Zhu, Danyang, Zhang, Zhiyong, Fan, Ruirui, Pan, Jiang, Feng, Jianxin, Liu, Chengming, Feng, Changqing, Liu, Jianbei, Shao, Ming, Zhou, Yi, Wang, Yanfeng, Yi, Han, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingming, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Kejun, and Zhu, Peng

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of the China Spallation Neutron Source, is used for nuclear data measurements. A Micromegas-based neutron detector with two variants was specially developed to measure the beam spot distribution for this beam line. In this article, the design, fabrication, and characterization of the detector are described. The results of the detector performance tests are presented, which include the relative electron transparency, the gain and the gain uniformity, and the neutron beam profile reconstruction capability. The result of the first measurement of the Back-n neutron beam spot distribution is also presented., Comment: 31 pages, 18 figures

Published
2019
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12. Progress in measurements of fission cross sections and total cross sections at CSNS Back-n white neutron source

Author

Liu, Rong, Yang, Yiwei, Ren, Zhizhou, Wen, Zhongwei, Wen, Jie, Liu, Xingyan, Chen, Yonghao, Yi, Han, Han, Zijie, Chen, Qiping, Bao, Jie, An, Qi, Bai, Huaiyong, Cao, Ping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2023
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13. Experimental studies on nuclide identification radiography with a CMOS camera at Back-n white neutron source

Author

Wang, Lijiao, Li, Qiang, Tang, Jingyu, Chen, Yonghao, Jing, Hantao, Tan, Zhixin, Tian, Binbin, Li, Gong, Jin, Zhengyao, Fan, Ruirui, Ning, Changjun, An, Qi, Bai, Haofan, Bai, Jiangbo, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Zhen, Cui, Zengqi, Fan, Anchuan, Feng, Changqing, Feng, Fanzhen, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Jia, Weihua, Jiang, Haoyu, Jiang, Wei, Jiang, Zhijie, Kang, Ling, Li, Bo, Li, Chao, Li, Jiawen, Li, Xiao, Li, Yang, Liu, Jie, Liu, Rong, Liu, Shubin, Luan, Guangyuan, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Tang, Shengda, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Mohan, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yue, Zhang, Zhiyong, Zhao, Maoyuan, Zhou, Luping, Zhou, Zhihao, and Zhu, Kejun

Published
2023
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16. Measurement of the 236,238U(n,f) cross sections from the threshold to 200 MeV at CSNS Back-n

Author

Ren, Zhizhou, Yang, Yiwei, Liu, Rong, Ye, Bangjiao, Wen, Zhongwei, Wen, Jie, Guo, Hairui, Chen, Yonghao, Yi, Han, Sun, Weili, Yan, Jie, Han, Zijie, Liu, Xingyan, Chen, Qiping, Ye, Tao, Bai, Jiangbo, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2023
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21. Energy-resolved fast neutron resonance radiography at CSNS

Author

Tan, Zhixin, Tang, Jingyu, Jing, Hantao, Fan, Ruirui, Li, Qiang, Ning, Changjun, Bao, Jie, Ruan, Xichao, Luan, Guangyuan, Feng, Changqin, and Zhang, Xianpeng

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The white neutron beamline at the China Spallation Neutron Source will be used mainly for nuclear data measurements. It will be characterized by high flux and broad energy spectra. To exploit the beamline as a neutron imaging source, we propose a liquid scintillator fiber array for fast neutron resonance radiography. The fiber detector unit has a small exposed area, which will limit the event counts and separate the events in time, thus satisfying the requirements for single-event time-of-flight (SEToF) measurement. The current study addresses the physical design criteria for ToF measurement, including flux estimation and detector response. Future development and potential application of the technology are also discussed., Comment: 4 figures

Published
2017
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23. Investigation of Linear Current in SiC Radiation Detector

Author

LIU Linyue;OUYANG Xiaoping;ZHANG Xianpeng;RUAN Jinlu

Subjects
sic, semiconductor detector, linear current, pulsed radiation detection, Nuclear engineering. Atomic power, TK9001-9401, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Diagnosis of pulsed neutron emitted by nuclear fission is one of key methods to study nuclear reaction mechanism. It is not easy to get accurate neutron parameters for the intense radiation background, composited of scatter neutron, gamma ray, etc. Aiming at the demands of the pulsed fission neutron detection, the detection method with high linear current, high neutron/gamma discrimination, high neutron/scatter neutron discrimination, low dark current etc. should be developed, in which high-performance detector is the most important component. However, traditional semiconductor detectors are difficult to meet these requirements, which has become a bottleneck restricting the research of nuclear reaction mechanism and an international technical problem. Thus, it is necessary to develop new radiation detectors. The wide-gap semiconductors have good potentials in radiation detection of intense radiation field and high temperature, which are not only with higher displacement energy (about 20-109 eV) than silicon (13 eV), resulting in their high radiation resistance, but also have higher thermal conductivity and melting points temperature than the traditional silicon material (1 412 ℃ and 1.5 W·cm-1·K-1, respectively), promising possibility of withstand wide operable temperature range. The high breakdown strength together with proper doping concentration determines the proper depleted width for secondary charged particle detection. Silicon carbide (SiC) is one of the most important wide-gap semiconductors. The mature of epitaxial material makes it possible to fabricate lightly doped high-quality SiC material with thin thickness, thus thin SiC detectors could be developed for the intense pulsed neutron detection with good resistance to high voltage, high charge collection efficiency, good endurance in intense radiation field and high temperature environment, furthermore it is expected to significantly improve the pulsed neutron detection technology. Linear current is an important characteristic for SiC detector in intense pulsed radiation detection, which determines the output upper limit and detectable dynamic range of the detection system. However, studies on the maximum linear current of current-type SiC detectors are far from fully investigated. In this paper, calculation method of linear current was established effectively, furthermore, the influence of radiation type and SiC detector’s sensitive area, sensitive thickness and electric strength were analyzed carefully. Experimental linear current is acquired at UV laser equipment and pulsed X-ray generator, indicating a result of higher than 4 A for a SiC detector with a sensitive area of 4 cm2 and a reverse bias of 400 V. The maximum relative deviation between theoretical and experimental results is about 23%.

Published
2022
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26. Background study for [formula omitted] cross section measurements with C[formula omitted]D[formula omitted] detectors at CSNS Back-n

Author

Ren, Jie, Ruan, Xichao, Jiang, Wei, Bao, Jie, Luan, Guangyuan, Zhang, Qiwei, Huang, Hanxiong, Nie, Yangbo, Ge, Zhigang, An, Qi, Bai, Huaiyong, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Zhizhou, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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27. Detection of low-energy charged-particle using the [formula omitted]E-E telescope at the Back-n white neutron source

Author

Fan, Ruirui, Jiang, Haoyu, Jiang, Wei, Zhang, Guohui, Yi, Han, Sun, Kang, Bai, Huaiyong, Zhou, Liang, Ning, Changjun, He, Yuefeng, Zhao, Yingtan, Wang, Yanfeng, He, Yongcheng, Cui, Zengqi, Sun, Zhijia, An, Qi, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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28. Neutron and [formula omitted] background measurements of the experimental halls at the CSNS back-streaming white neutron source

Author

Li, Qiang, Jing, Hantao, Zhou, Bin, Ning, Changjun, Tang, Jingyu, Ren, Jie, Yi, Han, Zhu, Xing, Zhang, Liying, Jiang, Wei, Fan, Ruirui, Bao, Jie, Feng, Changqing, Ruan, Xichao, Chen, Yonghao, Zhou, Luping, Li(a), Yang, Tan, Zhixin, Chen, Yukai, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Xiao, Li(b), Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Qi, Binbin, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tang, Hongqing, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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29. An ALP-responsive, anionic iridium complex for specific recognition of osteosarcoma cells.

Author

Shen, Shuang, Nong, Shuli, Zhang, Xianpeng, Song, Jiaqi, Meng, Caiting, Liu, Xinling, Shao, Liang, Li, Guanying, and Xu, Li

Subjects
CELLULAR recognition, IRIDIUM, ALKALINE phosphatase, LIPOPHILICITY, PERMEABILITY
Abstract

Poor cellular permeability greatly hampers the utilization of anionic Ir(III) complexes, though efficiently emissive and remarkably stable, in cell-based diagnosis. To overcome this barrier, we present the development of an alkaline phosphatase (ALP)-responsive, anionic, and aggregation-induced emission (AIE)-active Ir(III) complex (Ir1) for specific recognition of osteosarcoma cells. Containing phosphate moieties, Ir1 exhibits a net −1 charge, enabling charge repulsion from the cell membrane and resulting in low cellular uptake and good biocompatibility in normal osteoblast cells. Upon ALP-mediated hydrolysis of phosphate groups, the resulting dephosphorylated product, Ir2, demonstrates a positive charge and increased lipophilicity, promoting cellular uptake and activating its AIE properties for specific recognition of osteosarcoma cells that express elevated levels of ALP. This study elucidates the role of ALP as an ideal trigger for enhancing the cellular permeability of phosphate ester-containing Ir(III) complexes, thus expanding the potential of anionic Ir(III) complexes for biomedical applications. [ABSTRACT FROM AUTHOR]

Published
2024
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30. Health risk assessment for soil radioactivity around Shidaowan nuclear power plant in Shandong, China.

Author

Zhang, Wei, Qi, Chenyang, Lim, David, Zhang, Xianpeng, Gao, Rihong, and Feng, Zhihui

Subjects
HEALTH risk assessment, NUCLEAR power plant shutdowns, NUCLEAR power plants, RADIOACTIVITY, ABSORBED dose
Abstract

Monitoring radioactivity levels in the environment around nuclear power plants is of great significance to assessing environmental safety and impact. Shidaowan nuclear power plant is currently undergoing commissioning; however, the baseline soil radioactivity is unknown. The naturally occurring radionuclides 238U, 232Th, 226Ra and 40K, and artificial radionuclide (AR) 137Cs in soil samples around the Shidaowan nuclear power plant were measured to establish the baseline levels. Human health hazard indices such as external hazard indices (Hex), Radium equivalent (Raeq), outdoor absorbed dose rate (Dout), annual effective dose (AED) and excess lifetime cancer risk (ELCR) were estimated. The average concentration of 232Th, 40K, 137Cs, 238U and 226Ra were 42.6 ± 15, 581 ± 131, 0.68 ± 0.38, 40.13 ± 9.07 and 40.8 ± 12.8 Bq per kg, respectively. The average Hex, Raeq, Dout, AED and ELCR were 0.40, 146 Bq per kg, 68.8 nGy per h, 0.09 mSv per y and 3.29E-04, respectively. These data showed an acceptable level of risk to residents near the nuclear power plant and that the current radioactivity in the soil may not pose immediate harm to residents living close to the nuclear power plant. The observed lower AED and 40 K and 137Cs concentrations were comparable to other studies, whilst ELCR was higher than the world average of 2.9E-04. The commissioning of the Shidaowan nuclear power plant is potentially safe for the surrounding residents; further continuous monitoring is recommended. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Application of a silicon detector array in [formula omitted] reaction cross-section measurements at the CSNS Back-n white neutron source

Author

Jiang, Wei, Bai, Huaiyong, Jiang, Haoyu, Yi, Han, Fan, Ruirui, Zhang, Guohui, Tang, Jingyu, Sun, Zhijia, Ning, Changjun, Sun, Kang, Gao, Keqing, Cui, Zengqi, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Liang, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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32. Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

Author

Wen, Jie, Yang, Yiwei, Wen, Zhongwei, Liu, Rong, Liu, Xingyan, Han, Zijie, Chen, Qiping, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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34. Measurement of the neutron beam profile of the Back-n white neutron facility at CSNS with a Micromegas detector

Author

Qi, Binbin, Li, Yang, Zhu, Danyang, Zhang, Zhiyong, Fan, Ruirui, Pan, Jiang, Feng, Jianxin, Liu, Chengming, Feng, Changqing, Liu, Jianbei, Shao, Ming, Zhou, Yi, Wang, Yanfeng, Yi, Han, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingming, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Kejun, and Zhu, Peng

Published
2020
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35. Combined gamma-ray and energy-selective neutron radiography at CSNS

Author

Yan, Xiaosong, Yang, Yigang, Li, Qiang, Yang, Xin, Lu, Jian, Meng, Shijian, Tan, Zhixin, Yang, Yiwei, An, Qi, Bai, Huaiyong, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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39. G-quadruplex in the TMV Genome Regulates Viral Proliferation and Acts as Antiviral Target of Photodynamic Therapy

Author

Xie, Congbao, primary, Zhang, Xianpeng, additional, Pei, Wenyue, additional, Sun, Ju, additional, Shang, Hongqi, additional, Huang, Zhiyuan, additional, Wang, Mengxi, additional, Wang, Daozhong, additional, Wang, Guiqian, additional, Gui, Zhikun, additional, Liu, Sisi, additional, Li, Feng, additional, and Wei, Dengguo, additional

Published
2023
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41. Measurement of relative differential cross sections of the neutron-deuteron elastic scattering for neutron energy from 13 to 52 MeV

Author

Cui, Zengqi, Jiang, Haoyu, Jiang, Wei, Zhang, Guohui, Fan, Ruirui, Pang, Danyang, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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42. A Line-Surface Integrated Algorithm for Underwater Terrain Matching

Author

Lihua ZHANG,Xianpeng LIU,Shuaidong JIA,Yan SHI

Subjects
terrain matching, integrated matching, surface matching algorithm, multi-beam bathymetric system, Science, Geodesy, QB275-343
Abstract

The current underwater terrain surface matching algorithm, which uses Hu moment as the similarity index, cannot gain accurate location due to the algorithm's disadvantage in detecting slight differences. To solve this problem, a line-surface integrated terrain matching algorithm is presented. First, the similarity evaluation method of the traditional Terrain Contour Matching (TERCOM) algorithm is improved, and the strategy used to select the matching regions is developed. Then, a surface matching algorithm based on the geometric similarity is established to determine the optimum match between the reference maps and the actual measured terrains. Finally, a means of “line matching algorithm” and “surface matching algorithm” integration is proposed based on a fixed threshold. The experimental results show that the proposed algorithm can obtain a more accurate location and has greater robustness than that of the surface underwater matching algorithm based on Hu moment.

Published
2019
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43. The 6LiF-silicon detector array developed for real-time neutron monitoring at white neutron beam at CSNS

Author

Li, Qiang, Luan, Guangyuan, Bao, Jie, Tang, Jingyu, Jing, Hantao, Fan, Ruirui, Bai, Huaiyong, Jiang, Wei, Ning, Changjun, Ren, Jie, Ruan, Xichao, Chen, Yonghao, Zhang, Guohui, Yi, Han, An, Qi, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Ma, Yinglin, Qi, Binbin, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2019
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44. Erratum to: Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

Author

Liu, Xingyan, Yang, Yiwei, Liu, Rong, Wen, Zhongwei, Wen, Jie, Han, Zijie, Chen, Yonghao, Jing, Hantao, Yi, Han, Bao, Jie, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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45. Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

Author

Liu, Xingyan, Yang, Yiwei, Liu, Rong, Wen, Zhongwei, Wen, Jie, Han, Zijie, Chen, Yonghao, Jing, Hantao, Yi, Han, Bao, Jie, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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47. Mechanism analysis and modeling of surface roughness for CeO2 slurry-enhanced grinding BK7 optics.

Author

Zhang, Xianpeng, Yao, Peng, Li, Yueming, Jiang, Long, Jin, Xiyong, Xu, Jimiao, Liang, Shitong, Zhu, Jiahao, Huang, Chuanzhen, Zhu, Hongtao, and Liu, Hanlian

Abstract

Prolonged polishing deteriorates the shape accuracy of an optical element and reduces production efficiency simultaneously. In order to reduce the amount of polishing and polishing time, even obtain polish-free fine surfaces, a cerium oxide (CeO2) slurry-enhanced grinding (SEG) is investigated. However, the lack of in-depth mechanism explanation limits the optimization and application of SEG. In this research, a novel theoretical model was established to predict the surface roughness of the workpiece processed by CeO2 SEG. The modeling considered the effects of the protrusion height of active grains in the grinding wheel and the sizes and mass fractions of CeO2 particles in the grinding zone on undeformed chip thickness (UCT). Then, the mechanism of CeO2 SEG was investigated through the nanoindentation method. Indentation hardness and energy spectrum of the surface were estimated to verify the softened layer. The results showed that the model of surface roughness was well consistent with the experiment. CeO2 particle size significantly influenced the surface roughness than the mass fraction. The load-bearing effect of larger CeO2 particle size reduced the protruding height of the grinding wheel grains and reduced the UCT to a greater extent in the grinding process. The chemical reaction between CeO2 slurry and BK7 glass results in a softening layer which enhances the critical load and critical depth of the ductile–brittle transition of grinding. Finally, the optimized parameters were used for CeO2 SEG of ellipsoid BK7 optics and obtained the high surface quality. [ABSTRACT FROM AUTHOR]

Published
2024
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48. Large and tunable magnetoresistance in van der Waals ferromagnet/semiconductor junctions

Author

Zhu, Wenkai, primary, Zhu, Yingmei, additional, Zhou, Tong, additional, Zhang, Xianpeng, additional, Lin, Hailong, additional, Cui, Qirui, additional, Yan, Faguang, additional, Wang, Ziao, additional, Deng, Yongcheng, additional, Yang, Hongxin, additional, Zhao, Lixia, additional, Žutić, Igor, additional, Belashchenko, Kirill D., additional, and Wang, Kaiyou, additional

Published
2023
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49. Measurement of the relative differential cross sections of the 1H(n,el) reaction in the neutron energy range from 6 MeV to 52 MeV

Author

Jiang, Haoyu, Jiang, Wei, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Zhou, Liang, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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