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101. Borexino: geo-neutrino measurement at Gran Sasso, Italy

Author: Cristian Galbiati, Serguei Sukhotin, Michele Montuschi, Fausto Ortica, Ilya Drachnev, Alessandra Re, A. Caminata, G. Bellini, M. S. Meyer, Aldo Ianni, Aldo Romani, Karol Jedrzejczak, Matteo Agostini, Alexander Etenko, D. Franco, D. A. Semenov, A. Sotnikov, Lino Miramonti, Szymon Manecki, E. Hungerford, Paolo Lombardi, I. N. Machulin, N. Rossi, Z. Yokley, Marco Pallavicini, Andrey Formozov, Andrea Ianni, D. Bick, Sandra Zavatarelli, D. D'Angelo, M. D. Skorokhvatov, Michael Wurm, A. Vishneva, E. V. Unzhakov, M. Obolensky, E. Litvinovich, S. Appel, Lea Di noto, Robert Bruce Vogelaar, L. Papp, Marco Giammarchi, Lothar Oberauer, Marianne Goeger-Neff, Gioacchino Ranucci, Matthias Laubenstein, D. Bravo, Jay Burton Benziger, O. Zaimidoroga, Denis Korablev, B. Caccianiga, B. Neumair, S. Davini, G. Korga, E. Meroni, W. Maneschg, V. V. Kobychev, K. Fomenko, P. J. Mosteiro, Franz von Feilitzsch, G. Lukyanchenko, G. Zuzel, G. Bonfini, D. Kryn, A. Pocar, Frank Calaprice, K. Altenmueller, Livia Ludhova, Laura Perasso, Y. Suvorov, A. S. Chepurnov, Hardy Simgen, J. Thurn, R. Roncin, Hongwei Wang, V. N. Muratova, Marcin Wójcik, Juergen Winter, G. Testera, C. Ghiano, Caren Hagner, Roberto Tartaglia, P. Cavalcante, M. Misiaszek, M. Gromov, A. Razeto, F. Gabriele, S. Marcocci, M. Toropova, A. V. Derbin, Kai Zuber, Bjoern Lehnert, F. Lombardi, Oleg Smirnov, D. Jeschke, S. Schoenert, A. M. Goretti, S. Weinz, Agostini, Matteo, Altenmueller, Konrad, Appel, Simon, Bellini, Gianpaolo, Benziger, Jay, Bick, Daniel, Bonfini, Giuseppe, Bravo, David, Caccianiga, Barbara, Calaprice, Frank, Caminata, Alessio, Cavalcante, Paolo, Chepurnov, Alexander, D'Angelo, Davide, Davini, Stefano, Derbin, Alexander, Di Noto, Lea, Drachnev, Ilya, Etenko, Alexander, Fomenko, Kirill, Formozov, Andrey, Franco, Davide, Gabriele, Federico, Galbiati, Cristian, Ghiano, Chiara, Giammarchi, Marco, Goeger-Neff, Marianne, Goretti, Augusto, Gromov, Maxim, Hagner, Caren, Hungerford, Ed, Ianni, Aldo, Ianni, Andrea, Jedrzejczak, Karol, Jeschke, Dominik, Kobychev, Vladislav, Korablev, Deni, Korga, Gyorgy, Kryn, Didier, Laubenstein, Matthia, Lehnert, Bjoern, Litvinovich, Evgeny, Lombardi, Francesco, Lombardi, Paolo, Ludhova, Livia, Lukyanchenko, Georgy, Machulin, Igor, Manecki, Szymon, Maneschg, Werner, Marcocci, Simone, Meroni, Emanuela, Meyer, Mikko, Miramonti, Lino, Misiaszek, Marcin, Montuschi, Michele, Mosteiro, Pablo, Muratova, Valentina, Neumair, Birgit, Oberauer, Lothar, Obolensky, Michel, Ortica, Fausto, Pallavicini, Marco, Papp, Laszlo, Perasso, Laura, Pocar, Andrea, Ranucci, Gioacchino, Razeto, Alessandro, Re, Alessandra, Romani, Aldo, Roncin, Romain, Rossi, Nicola, Schoenert, Stefan, Semenov, Dmitrii, Simgen, Hardy, Skorokhvatov, Mikhail, Smirnov, Oleg, Sotnikov, Albert, Sukhotin, Serguei, Suvorov, Yury, Tartaglia, Roberto, Testera, Gemma, Thurn, Jan, Toropova, Maria, Unzhakov, Evgenii, Vishneva, Alina, Vogelaar, Robert Bruce, von Feilitzsch, Franz, Wang, Hanguo, Weinz, Stefan, Winter, Juergen, Wojcik, Marcin, Wurm, Michael, Yokley, Zachary, Zaimidoroga, Oleg, Zavatarelli, Sandra, Zuber, Kai, and Zuzel, Grzegorz
Subjects: FLUX, Particle physics, Neutrino oscillation, Physics::Instrumentation and Detectors, Solar neutrinos, liquid scintillators, Geoneutrino, earth, Solar neutrino, 01 natural sciences, Physics::Geophysics, Geoneutrinos, 0103 physical sciences, EARTH, 010306 general physics, Borexino, Low background, Physics, Liquid, neutrino oscillations, 010308 nuclear & particles physics, Neutrino oscillations, Liquid scintillators, scintillator, flux, Geophysics, solar neutrinos, low background, High Energy Physics::Experiment, Neutrino, geoneutrinos
Abstract: Geo-neutrinos, electron anti-neutrinos produced in beta-decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planet's interior. After a brief introduction of the geo-neutrinos' properties and of the main aims of their study, we discuss the features of a detector which has recently provided breakthrough achievements in the field, Borexino, a massive, calorimetric liquid scintillator detector installed at the underground Gran Sasso Laboratory. With its unprecedented radiopurity levels achieved in the core of the detection medium, it is the only experiment in operation able to study in real time solar neutrino interactions in the challenging sub-MeV energy region. Its superior technical properties allowed Borexino also to provide a clean detection of terrestrial neutrinos. Therefore, the description of the characteristics of the detected geo-neutrino signal and of the corresponding geological implications are the main core of the discussion contained in this work.
Published: 2017

102. Search for Neutrinoless Double Beta Decay with the GERDA experiment: Phase II

Author: Christian Bauer, A. Lubashevskiy, Oliver Schulz, Alberto Pullia, V. I. Gurentsov, I. R. Barabanov, M. Heisel, C. Macolino, A. Garfagnini, S. V. Zhukov, M. Balata, Bayarto Lubsandorzhiev, J. Schreiner, L. Vanhoefer, T. Bode, E. Doroshkevich, R. Brugnera, M. Salathe, V. V. Kazalov, V. V. Kuzminov, J. Janicsko, Manfred Lindner, T. Wester, Matteo Agostini, A.A. Smolnikov, D. R. Zinatulina, Matthias Laubenstein, C. Cattadori, Kai Zuber, Allen Caldwell, Ivano Lippi, V. Egorov, Josef Jochum, D. Palioselitis, A. Kish, S. Schoenert, K. N. Gusev, A. K. Schuetz, E. Medinaceli, V. Wagner, O. Selivanenko, J. Janicskó Csáthy, Marcin Wójcik, V. D'Andrea, W. Maneschg, C. Gooch, E. A. Yanovich, K. T. Knoepfle, Cinzia Sada, P. Grabmayr, Stefano Riboldi, A. A. Vasenko, K. von Sturm, Giovanni Benato, A. Lazzaro, A. Domula, A. Hegai, E. V. Demidova, Mikael Hult, I. Zhitnikov, M. Misiaszek, B. Schwingenheuer, B. Lehnert, G. Zuzel, C. Wiesinger, R. Mingazheva, M. Shirchenko, M. Allardt, N. Di Marco, V. I. Lebedev, V.B. Brudanin, Hardy Simgen, V. N. Kornoukhov, K. Pelczar, S. Hemmer, Alessandro Bettini, P. Moseev, Luciano Pandola, R. Kneissl, A. Kirsch, S. Belogurov, A. A. Klimenko, Laura Baudis, A. V. Veresnikova, J. Hakenmüller, Guillaume Lutter, A. M. Bakalyarov, D. Borowicz, A. Chernogorov, N. Rumyantseva, K. Panas, B. Schneider, H. Y. Liao, Werner Hofmann, R. Falkenstein, I. V. Kirpichnikov, Luca Stanco, C. Schmitt, M. Miloradovic, A. Wegmann, Igor Nemchenok, F. Salamida, Bela Majorovits, M. Junker, L. B. Bezrukov, E. Shevchik, Thomas Kihm, E. Bellotti, N. Frodyma, O.I. Kochetov, S. T. Belyaev, A. M. Gangapshev, and L. V. Inzhechik
Subjects: Nuclear physics, Physics, chemistry, Double beta decay, Liquid argon, Underground laboratory, Phase (waves), chemistry.chemical_element, Germanium, Sensitivity (control systems), Energy (signal processing), Semiconductor detector
Abstract: The GERmanium Detector Array (GERDA) experiment, located at the Gran Sasso underground laboratory in Italy, is built for the search of $0\nu\beta\beta$ decay in $^{76}$Ge. GERDA operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase I of the experiment was completed reaching an exposure of about 21 kg$\cdot$yr with a background level of $10^{-2}$ cts/(ke V $\cdot$ kg $\cdot$ yr). GERDA Phase I set a limit on the $0\nu\beta\beta$ decay of $^{76}$Ge of $T_{1/2}^{0\nu} > 2.1 \cdot 10^{25}$ yr. In Phase II 35 kg of germanium detectors enriched in $^{76}$Ge are operated to reach an exposure of 100 kg$\cdot$yr. The design goal is to reduce the background by one order of magnitude to reach the sensitivity for $T_{1/2}^{0\nu} = \mathcal{O} (10^{26} )$ yr. The Phase II setup comprises thirty newly produced Broad Energy Germanium (BEGe) detectors. They contribute to the background reduction with better energy resolution and enhanced pulse shape discrimination. To achieve the necessary background reduction, the setup was complemented with LAr veto. The hardware upgrade for Phase II was finished and all detectors were deployed in December 2015. We present the first results of Phase II with 10.8 kg$\cdot$yr exposure reached in June 2016.
Published: 2017

103. Borexino’s search for low-energy neutrino and antineutrino signals correlated with gamma-ray bursts

Author: Aldo Ianni, A.V. Etenko, M. Goeger-Neff, O. Smirnov, D. Bravo, J. Winter, Marco Giammarchi, D. Franco, R. Tartaglia, G. Lukyanchenko, E. V. Unzhakov, C. Ghiano, Caren Hagner, M. Misiaszek, Matthias Laubenstein, A. Jany, Matteo Agostini, P. Cavalcante, E. V. Hungerford, W. Maneschg, Cristiano Galbiati, Alessandra Re, A. Sotnikov, Marcin Wójcik, R. B. Vogelaar, P. J. Mosteiro, Andrea Ianni, D. Bick, Sandra Zavatarelli, Michele Montuschi, E. Meroni, F. Lombardi, G. Zuzel, A. Pocar, A. Razeto, M. Carlini, Z. Yokley, Kai Zuber, V. Atroshchenko, S. Schönert, D. Kryn, Lothar Oberauer, S. Manecki, H. de Kerret, G. Bellini, B. Neumair, I. S. Drachnev, K. Jedrzejczak, G. Manuzio, I. N. Machulin, K. Fomenko, D. Jeschke, Marco Pallavicini, D. D'Angelo, M. Gromov, B. Lehnert, E. Litvinovich, Jay Burton Benziger, N. Rossi, F. von Feilitzsch, S. Weinz, M. S. Meyer, S. Appel, L. Papp, G. Bonfini, D. A. Semenov, Frank Calaprice, K. Choi, S. Marcocci, Fausto Ortica, Paolo Lombardi, M. Toropova, S. V. Sukhotin, O. Zaimidoroga, H. Wang, V. V. Kobychev, Gioacchino Ranucci, B. Caccianiga, M. Obolensky, A. V. Derbin, V. N. Muratova, Lino Miramonti, K. Altenmüller, Denis Korablev, A. Caminata, A. Vishneva, F. Gabriele, G. Korga, Aldo Romani, L. Di Noto, G. Testera, Y. Suvorov, S. Davini, Livia Ludhova, A. M. Goretti, A. S. Chepurnov, J. Thurn, R. Roncin, M. D. Skorokhvatov, Michael Wurm, AstroParticule et Cosmologie (APC (UMR_7164)), 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), BOREXINO, AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Agostini, M., Suvorov, Y., Et, Al., 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 Paris Cité (UPCité), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: antineutrinos, electron, Antineutrinos, neutrino: solar, Physics::Instrumentation and Detectors, data acquisition, Solar neutrino, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, low energy/MeV neutrinos, Electron, gamma ray: burst, 01 natural sciences, Nuclear physics, Low energy/MeV neutrino, 0103 physical sciences, Neutrino, Low energy/MeV neutrinos, Neutrinos, Nuclear Experiment, 010303 astronomy & astrophysics, Gamma-ray burst, Borexino, scintillation counter, Physics, flavor, 010308 nuclear & particles physics, background, gamma-ray bursts, neutrinos, Gamma-ray bursts, Astronomy and Astrophysics, semileptonic decay, antineutrino, correlation: time, Neutrino detector, Inverse beta decay, ddc:540, Scintillation counter, readout, High Energy Physics::Experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; A search for neutrino and antineutrino events correlated with 2350 gamma-ray bursts (GRBs) is performed with Borexino data collected between December 2007 and November 2015. No statistically significant excess over background is observed. We look for electron antineutrinos ( ν¯e ) that inverse beta decay on protons with energies from 1.8 MeV to 15 MeV and set the best limit on the neutrino fluence from GRBs below 8 MeV. The signals from neutrinos and antineutrinos from GRBs that scatter on electrons are also searched for, a detection channel made possible by the particularly radio-pure scintillator of Borexino. We obtain currently the best limits on the neutrino fluence of all flavors and species below 7 MeV. Finally, time correlations between GRBs and bursts of events are investigated. Our analysis combines two semi-independent data acquisition systems for the first time: the primary Borexino readout optimized for solar neutrino physics up to a few MeV, and a fast waveform digitizer system tuned for events above 1 MeV.
Published: 2017

104. Study of the GERDA Phase II background spectrum

Author: V. I. Gurentsov, R. Kneißl, V. G. Egorov, D. Palioselitis, V. D'Andrea, M. Balata, E. Shevzik, L. Vanhoefer, L. B. Bezrukov, V. B. Brudanin, M. Allardt, Matthias Laubenstein, A. V. Veresnikova, M. Salathe, M. Junker, M. M. Wojcik, C. Schmitt, R. Mingazheva, BayarJon Paul Lubsandorzhiev, V. Kazalov, C. Cattadori, B. Schwingenheuer, J. Janicskó Csáthy, A. Domula, R. Brugnera, A. Kish, L. V. Inzhechik, A. Lubashevskiy, A. Kirsch, Oliver Schulz, V. V. Kuzminov, Alessandro Bettini, V. Wagner, I. Zhitnikov, W. Maneschg, E. A. Yanovich, Matteo Agostini, Alberto Pullia, M. Miloradovic, A. Wegmann, C. Bauer, Igor Nemchenok, V. I. Lebedev, A. Garfagnini, Manfred Lindner, L. Stanco, Stefano Riboldi, Bela Majorovits, D. Borowicz, A. Chernogorov, E. Medinaceli, Allen Caldwell, Laura Baudis, I.V. Kirpichnikov, A.A. Vasenko, O. Selivanenko, I. R. Barabanov, B. Lehnert, S. V. Zhukov, Hardy Simgen, E.V. Demidova, S. Belogurov, M. Misiaszek, H. Y. Liao, K. Panas, D. R. Zinatulina, K. N. Gusev, K. T. Knöpfle, C. Gooch, K. von Sturm, E. Bellotti, A.-K. Schütz, Stefan Schönert, A. Hegai, N. Di Marco, E. Doroshkevich, F. Salamida, Cinzia Sada, Giovanni Benato, J. Hakenmüller, Ivano Lippi, C. Wiesinger, Werner Hofmann, Mikael Hult, M. Shirchenko, G. Zuzel, T. Bode, R. Falkenstein, Jochen Schreiner, S. Hemmer, K. Pelczar, Guillaume Lutter, B. Schneider, A. M. Bakalyarov, P. Grabmayr, J. Jochum, T. Wester, A.A. Smolnikov, A. Lazzaro, Kai Zuber, V.N. Kornoukhov, O.I. Kochetov, S. T. Belyaev, A. M. Gangapshev, Th. Kihm, P. Moseev, Luciano Pandola, A. A. Klimenko, M. Heisel, N. Rumyantseva, C. Macolino, and N. Frodyma
Subjects: Physics, History, Background spectrum, Physics and Astronomy (all), Phase (waves), Nuclear Matrix, Astrophysics, Beta Decay, Bolometers, Beta Decay, Bolometers, Nuclear Matrix, Computer Science Applications, Education
Published: 2017

105. Progress on development of SPIDER diagnostics

Author: A. Muraro, Giuseppe Gorini, M. Dalla Palma, M. Brombin, M. Spolaore, M. Zaupa, Simone Peruzzo, L. Lotto, M. Tardocchi, Martina Bernardi, G. Serianni, Gabriele Croci, A. Pimazzoni, Andrea Rizzolo, Matteo Agostini, Barbara Zaniol, R. Delogu, Roberto Pasqualotto, Marco Barbisan, Roberto Cavazzana, N. Pomaro, Pasqualotto, R, Agostini, M, Barbisan, M, Bernardi, M, Brombin, M, Cavazzana, R, Croci, G, Dalla Palma, M, Delogu, R, Gorini, G, Lotto, L, Muraro, A, Peruzzo, S, Pimazzoni, A, Pomaro, N, Rizzolo, A, Serianni, G, Spolaore, M, Tardocchi, M, Zaniol, B, and Zaupa, M
Subjects: Engineering, Spectrometer, Calorimeter (particle physics), Testing for education, business.industry, Amplifier, Detector, Geometrical optics, Collimated light, law.invention, Amplifiers, Physics and Astronomy (all), Optics, law, Electrostatics, Electronic engineering, Beam dump, Electronics, business, Beam (structure)
Abstract: SPIDER experiment, the full size prototype of the beam source for the ITER heating neutral beam injector, has to demonstrate extraction and acceleration to 100 kV of a large negative ion hydrogen or deuterium beam with coextracted electron fraction e-/D
Published: 2017

106. A suite of diagnostics to validate and optimize the prototype ITER neutral beam injector

Author: M. Spolaore, M. De Muri, N. Pomaro, Barbara Zaniol, Gabriele Croci, A. Pimazzoni, Andrea Rizzolo, R. Delogu, Roberto Cavazzana, M. Brombin, Marica Rebai, Roberto Pasqualotto, M. Zaupa, Silvia Spagnolo, Matteo Agostini, Marco Barbisan, Simone Peruzzo, Emanuele Sartori, M. Dalla Palma, A. Muraro, M. Tardocchi, G. Serianni, Pasqualotto, R, Agostini, M, Barbisan, M, Brombin, M, Cavazzana, R, Croci, G, Palma, M, Delogu, R, Muri, M, Muraro, A, Peruzzo, S, Pimazzoni, A, Pomaro, N, Rebai, M, Rizzolo, A, Sartori, E, Serianni, G, Spagnolo, S, Spolaore, M, Tardocchi, M, Zaniol, B, and Zaupa, M
Subjects: Beam dynamics, Materials science, Ion beam, Nuclear engineering, Beam-line instrumentation (beam position and profile monitors, negative ions, electron beam (EBIS)), 01 natural sciences, 010305 fluids & plasmas, law.invention, Beam dynamics, Beam-line instrumentation (beam position and profile monitor, law, Plasma diagnostics-interferometry, spectroscopy and imaging, 0103 physical sciences, spectroscopy and imaging, beam-intensity monitors, electron cyclotron resonance (ECR), 010306 general physics, Instrumentation, Mathematical Physics, beam-intensity monitor, bunch length monitors) Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS)), Plasma diagnostics-interferometry, spectroscopy and imaging, Ion sources (positive ions, Neutron imaging, Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS)), Injector, Laser, Plasma diagnostics-interferometry, Beam dynamic, Ion source, Calorimeter, bunch length monitors), Plasma diagnostics - interferometry, Measuring instrument, Beam-line instrumentation (beam position and profile monitor, Physics::Accelerator Physics, Atomic physics, Beam (structure)
Abstract: The ITER project requires additional heating provided by two neutral beam injectors using 40 A negative deuterium ions accelerated at 1 MV. As the beam requirements have never been experimentally met, a test facility is under construction at Consorzio RFX, which hosts two experiments: SPIDER, full-size 100 kV ion source prototype, and MITICA, 1 MeV full-size ITER injector prototype. Since diagnostics in ITER injectors will be mainly limited to thermocouples, due to neutron and gamma radiation and to limited access, it is crucial to thoroughly investigate and characterize in more accessible experiments the key parameters of source plasma and beam, using several complementary diagnostics assisted by modelling. In SPIDER and MITICA the ion source parameters will be measured by optical emission spectroscopy, electrostatic probes, cavity ring down spectroscopy for H^− density and laser absorption spectroscopy for cesium density. Measurements over multiple lines-of-sight will provide the spatial distribution of the parameters over the source extension. The beam profile uniformity and its divergence are studied with beam emission spectroscopy, complemented by visible tomography and neutron imaging, which are novel techniques, while an instrumented calorimeter based on custom unidirectional carbon fiber composite tiles observed by infrared cameras will measure the beam footprint on short pulses with the highest spatial resolution. All heated components will be monitored with thermocouples: as these will likely be the only measurements available in ITER injectors, their capabilities will be investigated by comparison with other techniques. SPIDER and MITICA diagnostics are described in the present paper with a focus on their rationale, key solutions and most original and effective implementations.
Published: 2017

107. Limits on uranium and thorium bulk content in GERDA Phase I detectors

Author: V. N. Kornoukhov, K. Pelczar, Guillaume Lutter, A. M. Bakalyarov, K. Panas, R. Falkenstein, Jochen Schreiner, C. Schmitt, D. Palioselitis, V. G. Egorov, Allen Caldwell, K. T. Knöpfle, M. Salathe, T. Wester, O. Fedorova, V. I. Gurentsov, B. Lehnert, M. Balata, N. Frodyma, E. Medinaceli, L. Vanhoefer, K. von Sturm, T. Bode, A.A. Smolnikov, C. Cattadori, Kai Zuber, Laura Baudis, Cinzia Sada, Alessandro Bettini, O.I. Kochetov, Bayarto Lubsandorzhiev, A. Kish, R. Mingazheva, K. Freund, Marcin Wójcik, Stefano Riboldi, M. Junker, P. Grabmayr, H. Y. Liao, B. Schwingenheuer, Giovanni Benato, A.-K. Schütz, G. Zuzel, A. Hegai, S. T. Belyaev, V. D'Andrea, M. Misiaszek, C. Wiesinger, J. Jochum, A. M. Gangapshev, M. Shirchenko, V. V. Kazalov, E. V. Demidova, I. R. Barabanov, P. Moseev, Thomas Kihm, K. N. Gusev, D. R. Zinatulina, Luciano Pandola, V. I. Lebedev, A. A. Klimenko, S. V. Zhukov, M. Allardt, R. Brugnera, Stefan Schönert, L. B. Bezrukov, S. Belogurov, M. Heisel, Mikael Hult, E. Shevchik, V. V. Kuzminov, N. Rumyantseva, Matteo Agostini, Christian Bauer, A. Kirsch, A. Wegmann, Manfred Lindner, S. Hemmer, Igor Nemchenok, L. V. Inzhechik, A. Lubashevskiy, E. Doroshkevich, Bela Majorovits, W. Maneschg, A. Lazzaro, A. di Vacri, I. V. Kirpichnikov, Werner Hofmann, A. Domula, E. A. Yanovich, C. Macolino, M. Walter, B. Schneider, O. Selivanenko, R. Kneißl, Ivano Lippi, L. Stanco, V.B. Brudanin, N. Becerici-Schmidt, Hardy Simgen, E. Bellotti, D. Borowicz, M. Stepaniuk, J. Hakemüller, A. V. Veresnikova, J. Janicskó Csáthy, A. Chernogorov, I. Zhitnikov, F. Salamida, Oliver Schulz, Alberto Pullia, A. Garfagnini, Matthias Laubenstein, V. Wagner, A. A. Vasenko, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), GERDA, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Physics - Instrumentation and Detectors, radiopurity, Isotopes of germanium, germanium: double-beta decay, chemistry.chemical_element, FOS: Physical sciences, double beta decay, Germanium, Radiopurity, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Uranium and thorium, germanium detectors, Nuclear physics, Double beta decay, 0103 physical sciences, thorium: admixture, germanium: detector, Nuclide, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), uranium and thorium bulk content, 010306 general physics, Nuclear Experiment, background: radioactivity, Physics, Range (particle radiation), 010308 nuclear & particles physics, uranium: admixture, Thorium, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Uranium, Germanium detectors, Uranium and thorium bulk content, chemistry, radioactivity, bulk content, DOUBLE-BETA DECAY, Decay chain, GERDA
Abstract: Internal contaminations of $^{238}$U, $^{235}$U and $^{232}$Th in the bulk of high purity germanium detectors are potential backgrounds for experiments searching for neutrinoless double beta decay of $^{76}$Ge. The data from GERDA Phase~I have been analyzed for alpha events from the decay chain of these contaminations by looking for full decay chains and for time correlations between successive decays in the same detector. No candidate events for a full chain have been found. Upper limits on the activities in the range of a few nBq/kg for $^{226}$Ra, $^{227}$Ac and $^{228}$Th, the long-lived daughter nuclides of $^{238}$U, $^{235}$U and $^{232}$Th, respectively, have been derived. With these upper limits a background index in the energy region of interest from $^{226}$Ra and $^{228}$Th contamination is estimated which satisfies the prerequisites of a future ton scale germanium double beta decay experiment., Comment: 2 figures, 7 pages
Published: 2017

108. Embryo development in dynamic microfluidic systems

Author: Matteo Agostini, Stefano Barone, Gina Greco, and Marco Cecchini
Subjects: Potential impact, 030219 obstetrics & reproductive medicine, Microchannel, Shear stress, Computer science, Microfluidics, Metals and Alloys, Bioreactor, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Embryo development, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, 03 medical and health sciences, 0302 clinical medicine, Materials Chemistry, Biochemical engineering, Electrical and Electronic Engineering, Dynamic cultures, 0210 nano-technology, Instrumentation, Throughput (business), in vitro fertilization
Abstract: Infertility has become a highly-spread disease but the efficiency of standard in vitro fertilization (IVF) cycles is only 30%, and their cost is very high. Recently, strategies based on microfluidics and dynamic in vitro systems have been proposed to improve the throughput of successful assisted hatchings. Here, these novel methods are presented and categorized in three main groups: microdroplet dynamic bioreactors, microchannel based cultures and microcontainers. In contraposition to the conventional static cultures, these devices introduce a dynamic microenvironment in order to mimic the physiological dynamic stimulations that are crucial for embryo development. The critical parameters-such as embryo density, medium flow rate, shear stress and microvibration frequency-are discussed and critically compared among the different systems, highlighting their strengths, drawbacks and potential impact on IVF.
Published: 2017

109. The ITER Neutral Beam Test Facility toward SPIDER operation

Author: J.F. Moreno, A. Zamengo, M. Urbani, P. Zaccaria, C. Baltador, W. Kraus, Alberto Ferro, V. Pilard, M. Spolaore, M. Bigi, H. Dhola, Ujjwal Baruah, Pierluigi Veltri, Gabriele Croci, M. J. Singh, A. Pimazzoni, G. Mico, C. Rotti, E. Spada, Piero Agostinetti, A. Muraro, Gabriele Manduchi, D. Gutierrez, L. Bailly-Maitre, M. Battistella, F. Fellin, Marica Rebai, M. Fröschle, Marco Barbisan, Emanuele Sartori, Marco Cavenago, G. Agarici, S. Dal Bello, M. Simon, V. Antoni, J. Chareyre, Luca Grando, R. Riedl, P. Jain, M. Valente, M.V. Nagaraju, Roberto Pasqualotto, Diego Marcuzzi, Gianluigi Serianni, M. Kushwah, M. Dalla Palma, M. Tardocchi, C. Wimmer, E. Bragulat, Barbara Zaniol, D. Boilson, J. Graceffa, D. Wünderlich, M. De Muri, R. S. Hemsworth, R. Delogu, L. Zanotto, M. Boldrin, Namita Singh, Ursel Fantz, M. Brombin, Matteo Agostini, M. Siragusa, R. Piovan, A. Patel, B. Raval, Riccardo Nocentini, G. Gambetta, N. Pomaro, Giuseppe Chitarin, F. Paolucci, M. Pavei, Silvia Spagnolo, Simone Peruzzo, Elena Gaio, D. Aprile, Hitesh Patel, M. Recchia, A.K. Chakraborty, Bernd Heinemann, Loic Schiesko, A. De Lorenzi, A. Masiello, A. Garbuglia, M. Zaupa, Vanni Toigo, B. Schunke, G. Gomez, Andrea Rizzolo, Nicolò Marconato, Giuseppe Gorini, H. Decamps, C. Taliercio, Nicola Pilan, Tullio Bonicelli, Adriano Luchetta, A. Maistrello, Lennart Svensson, Toigo, V, Dal Bello, S, Gaio, E, Luchetta, A, Pasqualotto, R, Zaccaria, P, Bigi, M, Chitarin, G, Marcuzzi, D, Pomaro, N, Serianni, G, Agostinetti, P, Agostini, M, Antoni, V, Aprile, D, Baltador, C, Barbisan, M, Battistella, M, Boldrin, M, Brombin, M, Dalla Palma, M, De Lorenzi, A, Delogu, R, De Muri, M, Fellin, F, Ferro, A, Gambetta, G, Grando, L, Jain, P, Maistrello, A, Manduchi, G, Marconato, N, Pavei, M, Peruzzo, S, Pilan, N, Pimazzoni, A, Piovan, R, Recchia, M, Rizzolo, A, Sartori, E, Siragusa, M, Spada, E, Spagnolo, S, Spolaore, M, Taliercio, C, Valente, M, Veltri, P, Zamengo, A, Zaniol, B, Zanotto, L, Zaupa, M, Boilson, D, Graceffa, J, Svensson, L, Schunke, B, Decamps, H, Urbani, M, Kushwah, M, Chareyre, J, Singh, M, Bonicelli, T, Agarici, G, Garbuglia, A, Masiello, A, Paolucci, F, Simon, M, Bailly maitre, L, Bragulat, E, Gomez, G, Gutierrez, D, Mico, G, Moreno, J, Pilard, V, Chakraborty, A, Baruah, U, Rotti, C, Patel, H, Nagaraju, M, Singh, N, Patel, A, Dhola, H, Raval, B, Fantz, U, Frã¶schle, M, Heinemann, B, Kraus, W, Nocentini, R, Riedl, R, Schiesko, L, Wimmer, C, Wã¼nderlich, D, Cavenago, M, Croci, G, Gorini, G, Rebai, M, Muraro, A, Tardocchi, M, and Hemsworth, R
Subjects: Physics, Nuclear and High Energy Physics, Spider, Test facility, Nuclear engineering, PRIMA: the ITER Neutral Beam Test Facility (NBTF), Condensed Matter Physics, ITER, heating neutral beam injector (HNB), PRIMA: the ITER Neutral Beam Test Facility (NBTF), SPIDER, 01 natural sciences, SPIDER, 010305 fluids & plasmas, heating neutral beam injector (HNB), ITER, 0103 physical sciences, 010306 general physics, Beam (structure), Nuclear and High Energy Physic
Abstract: SPIDER is one of two projects of the ITER Neutral Beam Test Facility under construction in Padova, Italy, at the Consorzio RFX premises. It will have a 100 keV beam source with a full-size prototype of the radiofrequency ion source for the ITER neutral beam injector (NBI) and also, similar to the ITER diagnostic neutral beam, it is designed to operate with a pulse length of up to 3600 s, featuring an ITER-like magnetic filter field configuration (for high extraction of negative ions) and caesium oven (for high production of negative ions) layout as well as a wide set of diagnostics. These features will allow a reproduction of the ion source operation in ITER, which cannot be done in any other existing test facility. SPIDER realization is well advanced and the first operation is expected at the beginning of 2018, with the mission of achieving the ITER heating and diagnostic NBI ion source requirements and of improving its performance in terms of reliability and availability. This paper mainly focuses on the preparation of the first SPIDER operations - integration and testing of SPIDER components, completion and implementation of diagnostics and control and formulation of operation and research plan, based on a staged strategy
Published: 2017

110. The PRIMA test facility: SPIDER and MITICA test-beds for ITER neutral beam injectors

Author: S. Hanke, M. Pavei, Sandro Sandri, L. Bailly-Maitre, G. Gomez, Emanuele Sartori, Diego Marcuzzi, Atsushi Kojima, A.K. Chakraborty, Vanni Toigo, T. Maejima, Kazuhiro Watanabe, Nicola Pilan, G. Mico, C. Rotti, A. Sottocornola, A. Zamengo, A. Masiello, Nicolò Marconato, Giuseppe Gorini, V. Antoni, B. Schunke, J. Chareyre, Gabriele Manduchi, G. Rostagni, P. Zaccaria, Gianluigi Serianni, Y. Xue, Alberto Ferro, M. Valente, M. De Muri, M. Bigi, R. S. Hemsworth, A. Muraro, S. Ochoa, Gabriele Croci, M. Brombin, Hiroyuki Tobari, A. Pimazzoni, M. Kushwah, Simone Peruzzo, Andrea Rizzolo, D. Boilson, Piergiorgio Sonato, M.V. Nagaraju, M. Recchia, M. Zaupa, H. Yamanaka, M. Dalla Palma, F. Fellin, Elena Gaio, D. Aprile, J.F. Moreno, L. Zanotto, M. Spolaore, Ujjwal Baruah, M. Siragusa, Bernd Heinemann, H. Decamps, C. Taliercio, A. Garbuglia, A. Fiorentin, W. Kraus, M. Battistella, Muriel Simon, Francesco Gnesotto, E. Bragulat, Matteo Agostini, E. Ocello, Silvia Spagnolo, S. Dal Bello, Marco Cavenago, E. Spada, Daniel Gutierrez, Tullio Bonicelli, P. Blatchford, B. Chuilon, A. De Lorenzi, Piero Agostinetti, J. Graceffa, P. Jain, Marica Rebai, G. Gambetta, H.P.L. de Esch, A. Tonti, M. Moresco, Namita Singh, Lennart Svensson, Ursel Fantz, M. Urbani, M. Boldrin, C. Baltador, Adriano Luchetta, A. Maistrello, Giuseppe Chitarin, R. Piovan, H. Dhola, M. J. Singh, M. Tardocchi, Roberto Pasqualotto, V. Pilard, Pierluigi Veltri, G. Agarici, Mieko Kashiwagi, Barbara Zaniol, R. Delogu, Marco Barbisan, Luca Grando, F. Paolucci, Hitesh Patel, N. Pomaro, Naotaka Umeda, Marco D’Arienzo, B. Raval, Volker Hauer, A. Patel, Masaya Hanada, Toigo, V, Piovan, R, Bello, S, Gaio, E, Luchetta, A, Pasqualotto, R, Zaccaria, P, Bigi, M, Chitarin, G, Marcuzzi, D, Pomaro, N, Serianni, G, Agostinetti, P, Agostini, M, Antoni, V, Aprile, D, Baltador, C, Barbisan, M, Battistella, M, Boldrin, M, Brombin, M, Palma, M, De Lorenzi, A, Delogu, R, De Muri, M, Fellin, F, Ferro, A, Fiorentin, A, Gambetta, G, Gnesotto, F, Grando, L, Jain, P, Maistrello, A, Manduchi, G, Marconato, N, Moresco, M, Ocello, E, Pavei, M, Peruzzo, S, Pilan, N, Pimazzoni, A, Recchia, M, Rizzolo, A, Rostagni, G, Sartori, E, Siragusa, M, Sonato, P, Sottocornola, A, Spada, E, Spagnolo, S, Spolaore, M, Taliercio, C, Valente, M, Veltri, P, Zamengo, A, Zaniol, B, Zanotto, L, Zaupa, M, Boilson, D, Graceffa, J, Svensson, L, Schunke, B, Decamps, H, Urbani, M, Kushwah, M, Chareyre, J, Singh, M, Bonicelli, T, Agarici, G, Garbuglia, A, Masiello, A, Paolucci, F, Simon, M, Bailly maitre, L, Bragulat, E, Gomez, G, Gutierrez, D, Mico, G, Moreno, J, Pilard, V, Kashiwagi, M, Hanada, M, Tobari, H, Watanabe, K, Maejima, T, Kojima, A, Umeda, N, Yamanaka, H, Chakraborty, A, Baruah, U, Rotti, C, Patel, H, Nagaraju, M, Singh, N, Patel, A, Dhola, H, Raval, B, Fantz, U, Heinemann, B, Kraus, W, Hanke, S, Hauer, V, Ochoa, S, Blatchford, P, Chuilon, B, Xue, Y, De Esch, H, Hemsworth, R, Croci, G, Gorini, G, Rebai, M, Muraro, A, Tardocchi, M, Cavenago, M, D'Arienzo, M, Sandri, S, and Tonti, A
Subjects: Nuclear engineering, General Physics and Astronomy, PRIMA, 01 natural sciences, 010305 fluids & plasmas, law.invention, MITICA, Physics and Astronomy (all), Neutral beam injector, law, ITER, 0103 physical sciences, ddc:530, ITER, heating neutral beam injector, ITER neutral beam test facility, PRIMA, SPIDER, MITICA, 010306 general physics, heating neutral beam injector, Physics, Spider, Test facility, ITER neutral beam test facility, Advanced stage, Injector, SPIDER, Atomic physics, Beam (structure)
Abstract: The ITER Neutral Beam Test Facility (NBTF), called PRIMA (Padova Research on ITER Megavolt Accelerator), is hosted in Padova, Italy and includes two experiments: MITICA, the full-scale prototype of the ITER heating neutral beam injector, and SPIDER, the full-size radio frequency negative-ions source. The NBTF realization and the exploitation of SPIDER and MITICA have been recognized as necessary to make the future operation of the ITER heating neutral beam injectors efficient and reliable, fundamental to the achievement of thermonuclear-relevant plasma parameters in ITER. This paper reports on design and R&D carried out to construct PRIMA, SPIDER and MITICA, and highlights the huge progress made in just a few years, from the signature of the agreement for the NBTF realization in 2011, up to now - when the buildings and relevant infrastructures have been completed, SPIDER is entering the integrated commissioning phase and the procurements of several MITICA components are at a well advanced stage
Published: 2017

111. Neutralisation and transport of negative ion beams: Physics and diagnostics

Author: M. Spolaore, C. Baltador, A. Pimazzoni, D. Aprile, V. Antoni, Marco Cavenago, Roberto Pasqualotto, Nicolò Marconato, Piero Agostinetti, Matteo Agostini, F. Fellin, Silvia Spagnolo, Gianluigi Serianni, Barbara Zaniol, N. Fonnesu, Pierluigi Veltri, M. Brombin, M. Dalla Palma, R. Delogu, Marco Barbisan, M. Zaupa, Emanuele Sartori, and Giuseppe Chitarin
Subjects: Physics, beam diagnostics, beam physics, Settore FIS/01 - Fisica Sperimentale, General Physics and Astronomy, beam transport, neutral beam injectors, 01 natural sciences, 010305 fluids & plasmas, Ion, Physics::Plasma Physics, negative ion beam neutralization, 0103 physical sciences, Physics::Accelerator Physics, beam space charge compensation, Atomic physics, 010306 general physics
Abstract: Neutral beam injection is one of the most important methods of plasma heating in thermonuclear fusion experiments, allowing the attainment of fusion conditions as well as driving the plasma current. Neutral beams are generally produced by electrostatically accelerating ions, which are neutralised before injection into the magnetised plasma. At the particle energy required for the most advanced thermonuclear devices and particularly for ITER, neutralisation of positive ions is very inefficient so that negative ions are used. The present paper is devoted to the description of the phenomena occurring when a high-power multi-ampere negative ion beam travels from the beam source towards the plasma. Simulation of the trajectory of the beam and of its features requires various numerical codes, which must take into account all relevant phenomena. The leitmotiv is represented by the interaction of the beam with the background gas. The main outcome is the partial neutralisation of the beam particles, but ionisation of the background gas also occurs, with several physical and technological consequences. Diagnostic methods capable of investigating the beam properties and of assessing the relevance of the various phenomena will be discussed. Examples will be given regarding the measurements collected in the small flexible NIO1 source and regarding the expected results of the prototype of the neutral beam injectors for ITER. The tight connection between measurements and simulations in view of the operation of the beam is highlighted.
Published: 2017

112. First results of GERDA Phase II and consistency with background models

Author: R. Falkenstein, D. Palioselitis, Jochen Schreiner, O. Schulz, I. V. Kirpichnikov, M. Miloradovic, E. V. Demidova, O.I. Kochetov, D. Borowicz, S. T. Belyaev, A. M. Gangapshev, R. Mingazheva, N. Frodyma, V. I. Gurentsov, Alberto Pullia, V. G. Egorov, A. Garfagnini, M. Balata, B. Schwingenheuer, R. Brugnera, V. V. Kuzminov, Bayarto Lubsandorzhiev, R. Kneißl, E. Shevzik, J. Hakenmüller, M. Salathe, Matteo Agostini, V. I. Lebedev, L. Vanhoefer, K. Pelczar, K. N. Gusev, Th. Kihm, Matthias Laubenstein, A. M. Bakalyarov, Marcin Wójcik, E. Doroshkevich, L. V. Inzhechik, P. Grabmayr, Alessandro Bettini, A. Kirsch, Guillaume Lutter, T. Wester, P. Moseev, S. Hemmer, V. D'Andrea, L. B. Bezrukov, Luciano Pandola, J. Jochum, F. Salamida, W. Maneschg, K. T. Knöpfle, A.A. Smolnikov, A. Lazzaro, Christian Bauer, A. A. Klimenko, V.N. Kornoukhov, E. A. Yanovich, A. V. Veresnikova, S. Belogurov, K. Panas, C. Schmitt, A. Wegmann, Igor Nemchenok, Manfred Lindner, A. A. Vasenko, Kai Zuber, E. Medinaceli, M. Heisel, M. Allardt, N. Rumyantseva, C. Cattadori, A. Chernogorov, Bela Majorovits, C. Macolino, A. Lubashevskiy, B. Schneider, I. R. Barabanov, E. Bellotti, C. Gooch, A.-K. Schütz, S. V. Zhukov, A. Hegai, S. Schönert, B. Lehnert, D. R. Zinatulina, G. Zuzel, N. Di Marco, J. Janicskó Csáthy, O. Selivanenko, L. Stanco, V.B. Brudanin, Mikael Hult, Hardy Simgen, A. Kish, A. Domula, V. Wagner, I. Zhitnikov, Cinzia Sada, Giovanni Benato, M. Junker, Laura Baudis, H. Y. Liao, Werner Hofmann, Allen Caldwell, K. von Sturm, Ivano Lippi, V. Kazalov, Stefano Riboldi, M. Misiaszek, C. Wiesinger, M. Shirchenko, and T. Bode
Subjects: Physics, History, Background spectrum, Particle physics, Physics and Astronomy (all), Consistency (statistics), Phase (waves), Liquid argon, DECAY, Computer Science Applications, Education
Published: 2017

113. A substantial step forward in the realization of the ITER HNB system: The ITER NBI Test Facility

Author: A. Fiorentin, Silvia Spagnolo, E. Spada, Daniel Gutierrez, B. Chuilon, Pierluigi Veltri, M. Recchia, J. Chareyre, Lennart Svensson, M. De Muri, F. Fellin, C. Rotti, R. S. Hemsworth, A. Muraro, J.F. Moreno, Gianluigi Serianni, Adriano Luchetta, A. Maistrello, Muriel Simon, G. Gambetta, Alberto Ferro, Giuseppe Chitarin, W. Kraus, Gabriele Manduchi, F. Paolucci, M. Battistella, H. Decamps, L. Zanotto, Y. Xue, C. Taliercio, E. Ocello, V. Pilard, H.P.L. de Esch, J. Graceffa, Bernd Heinemann, Marco Cavenago, M.V. Nagaraju, P. Zaccaria, S. Hanke, M. Boldrin, M. Spolaore, Diego Marcuzzi, Atsushi Kojima, M. Pavei, Sandro Sandri, P. Jain, M. Siragusa, Marco D’Arienzo, Francesco Gnesotto, M. Bigi, S. Ochoa, A.K. Chakraborty, M. Urbani, N. Pomaro, Gabriele Croci, A. Pimazzoni, Tullio Bonicelli, S. Dal Bello, C. Baltador, G. Gomez, Volker Hauer, A. Sottocornola, A. Zamengo, M. Valente, Hiroyuki Tobari, Matteo Agostini, R. Piovan, Hitesh Patel, Vanni Toigo, Andrea Rizzolo, G. Mico, B. Raval, H. Yamanaka, A. Masiello, B. Schunke, Simone Peruzzo, A. De Lorenzi, Elena Gaio, D. Aprile, E. Bragulat, Nicolò Marconato, Giuseppe Gorini, M. Kushwah, P. Blatchford, Piero Agostinetti, Marica Rebai, T. Maeshima, M. Dalla Palma, M. Moresco, Masaya Hanada, Kazuhiro Watanabe, L. Bailly-Maitre, Nicola Pilan, Emanuele Sartori, Naotaka Umeda, M. Brombin, M. Zaupa, Piergiorgio Sonato, C. Finotti, A. Patel, V. Antoni, D. Boilson, H. Dhola, M. J. Singh, Roberto Pasqualotto, Marco Barbisan, Luca Grando, G. Agarici, Mieko Kashiwagi, Barbara Zaniol, Namita Singh, Ursel Fantz, R. Delogu, G. Rostagni, Ujjwal Baruah, Toigo, V, Piovan, R, Dal Bello, S, Gaio, E, Luchetta, A, Pasqualotto, R, Zaccaria, P, Bigi, M, Chitarin, G, Marcuzzi, D, Pomaro, N, Serianni, G, Agostinetti, P, Agostini, M, Antoni, V, Aprile, D, Baltador, C, Barbisan, M, Battistella, M, Boldrin, M, Brombin, M, Dalla Palma, M, De Lorenzi, A, Delogu, R, De Muri, M, Fellin, F, Ferro, A, Finotti, C, Fiorentin, A, Gambetta, G, Gnesotto, F, Grando, L, Jain, P, Maistrello, A, Manduchi, G, Marconato, N, Moresco, M, Ocello, E, Pavei, M, Peruzzo, S, Pilan, N, Pimazzoni, A, Recchia, M, Rizzolo, A, Rostagni, G, Sartori, E, Siragusa, M, Sonato, P, Sottocornola, A, Spada, E, Spagnolo, S, Spolaore, M, Taliercio, C, Valente, M, Veltri, P, Zamengo, A, Zaniol, B, Zanotto, L, Zaupa, M, Boilson, D, Graceffa, J, Svensson, L, Schunke, B, Decamps, H, Urbani, M, Kushwah, M, Chareyre, J, Singh, M, Bonicelli, T, Agarici, G, Masiello, A, Paolucci, F, Simon, M, Bailly Maitre, L, Bragulat, E, Gomez, G, Gutierrez, D, Mico, G, Moreno, J, Pilard, V, Kashiwagi, M, Hanada, M, Tobari, H, Watanabe, K, Maeshima, T, Kojima, A, Umeda, N, Yamanaka, H, Chakraborty, A, Baruah, U, Rotti, C, Patel, H, Nagaraju, M, Singh, N, Patel, A, Dhola, H, Raval, B, Fantz, U, Heinemann, B, Kraus, W, Hanke, S, Hauer, V, Ochoa, S, Blatchford, P, Chuilon, B, Xue, Y, De Esch, H, Hemsworth, R, Croci, G, Gorini, G, Rebai, M, Muraro, A, Cavenago, M, D'Arienzo, M, and Sandri, S
Subjects: Computer science, Nuclear engineering, NBI, PRIMA, PRIMA: the ITER Neutral Beam Test Facility (NBTF), neutral beam injector, 01 natural sciences, 010305 fluids & plasmas, law.invention, ITER, Heating Neutral Beam Injector (HNB), PRIMA: the ITER Neutral Beam Test Facility (NBTF), SPIDER, MITICA, law, ITER, 0103 physical sciences, NBTF, General Materials Science, Spider, 010306 general physics, Civil and Structural Engineering, Test facility, Mitica, Mechanical Engineering, neutral beam test facility, Injector, Heating Neutral Beam Injector (HNB), Nuclear Energy and Engineering, Materials Science (all), Realization (systems), Beam (structure)
Abstract: The realization of the ITER Neutral Beam Test Facility (NBTF) and the start the experimental phase are important tasks of the fusion roadmap, since the target requirements of injecting to the plasma a beam of Deuterium atoms with a power up to 16.5 MW, at 1MeV of energy and with a pulse length up to 3600s have never been reached together before. The ITER NBTF, called PRIMA (Padova Research on ITER Megavolt Accelerator), is hosted in Padova, Italy; it includes two experiments: MITICA, the full-scale prototype of the ITER injector and SPIDER, the full-size negative ion source. The realization promoted by the ITER organization is carried out with the contribution of the European Union, channeled through the Joint Undertaking for ITER (F4E), of the Consorzio RFX which hosts the Test Facility, the Japanese and the Indian ITER Domestic Agencies (JADA and INDA) and several European laboratories, such as IPP-Garching, KIT-Karlsruhe, CCFECulham, CEA-Cadarache. The early start of operation of PRIMA experiments is urgent because sufficient experimental time is necessary to face and solve the issues related to the achievement of the desired performance in time for the ITER operation, requiring NBI since the beginning. Substantial progresses have been recently achieved: the buildings construction, begun in October 2012, has been completed by the end of 2015 and the installation of some components has been started since the end of 2014. The SPIDER realization is well advanced: the installation phase is proceeding in good agreement with the general plan; it is expected to be almost completed by the end of 2016. In parallel, the commissioning of the SPIDER power supply (PS) and auxiliary plant systems is being proceeding. Tests at full power and remote control are planned, including also those addressed to reproduce the grid breakdowns and to test the relevant protections. The design of the MITICA injector components was completed in 2015their procurement is being made through a number of tenders, some of them already launched. The HV Power Supply system of the MITICA 1MV accelerator, provided by JADA, was delivered on site in December 2015. The challenging installation of these components, including the step-up transformers and the SF6 gas insulated transmission line, started soon after and will go on throughout 2016. The present phase, with the PRIMA buildings continuously filled with new components, with the installation activities progressing and with also the commissioning and testing phase starting represents a substantial step forward toward the main target. The paper will describe the main challenges the Project Team has dealt during this phase and the important feedback derived for the ITER HNB systems both from the technical and the organizational standpoints.
Published: 2017

114. Extraction of Many H- Beamlets from Uncesiated Ion Source NIO1

Author: Cavenago Marco, Gianluigi Serianni, Pierluigi Veltri, Michela De Muri, Matteo Agostini, Vanni Antoni, Carlo Baltador, Paolo Barbato, Marco Barbisan, Andrea Barzon, Lucio Baseggio, Marco Bigi, Matteo Brombin, Laura Buonincontri, Vannino Cervaro, Fabio Degli Agostini, Enrico Fagotti, Luca Franchin, NIcola Ippolito, Kulevoy Timur, Bruno Laterza, Luca Lotto, Andrea Ludovici, Giancarlo Maero, Moreno Maniero, Luisa Migliorato, Alessandro Minarello, Pierpaolo Minelli, Federico Molon, Gianluca Moro, Roberto Pasqualotto, Tommaso Patton, Sergey Petrenko, Antonio Pimazzoni, Diego Ravarotto, Mauro Recchia, Livio Romanato, Massimiliano Romé, Federico Rossetto, Emanuele Sartori, Manuele Sattin, Fabio Spinazzè, Fabrizio Stivanello, Francesco Taccogna, Marco Tollin, Lauro Trevisan, Vincenzo Variale, Marco Zanini, Barbara Zaniol, Simone Zucchetti, and Piergiorgio Sonato
Abstract: The installation of molybdenum liners in the ion source NIO1 (Negative Ion Optimization phase 1) has proven to be successful in order to largely decrease the contamination of rf window by wall sputtering; intense hydrogen plasma are thus achievable even at moderate rf power (1200 W) in a continuous regime operation (much longer than one hour), which enabled prolongated campaign at several plasma conditions; operation down to 0.5 Pa is possible, while best beam conditions were observed among 1 and 2 Pa, which is satisfying considering that NIO1 was never cesiated up to now. This has motivated a delay in the installation of the existing Cs oven, to investigate the following items: best combination of plasma grid (PG) and bias plate (BP) voltages (usually separately controllable in NIO1) in order to reduce the coextracted electrode current Ie; effect of magnetic filter; improved extraction grid EG with ion deflection compensation; correlation of EG magnetic field and discharges in the extraction gap: achieved acceleration voltage for H- is indeed 12 kV up to now, at the relatively high pressure there (>0.2 Pa) due to the limited pumping installed. Database of results with H is compared to previous results with Oxygen (and Oxygen/Argon mixtures), where a much larger coextracted electron current Ie was measured as expected, and ion beam current was thus limited below 3 mA. On the contrary for H, the limited rf power used resulted in a low extracted current (6 mA), consistently with the stated limitation in voltage. Maintenance experience, concerning gasket erosion and ceramic surface alteration is discussed; the thin insulators among BP and PG and other walls show plasma related embrittlement, and are being rebuilt in a more compact BN grade. Performance of some installed beam diagnostic (side view luminosity, Doppler-shifted emission, and carbon plate calorimetry) is critically reviewed, especially for effectiveness of beam imaging, as also compared to other beam diagnostics. As to the former method, in vertical side view projection, three columns of beamlets clearly show, while the horizontal projection is somewhat blurred by ion deflection up to now. Finally steady progress of acquisition software is noted. Related advancement of simulation tools is summarized.
Published: 2017

115. Runaway electron generation and control

Author: G. Apruzzese, Jose Ramon Martin-Solis, M. Gospodarczyk, Daniele Marocco, Carlo Sozzi, Z. Popovic, R. De Angelis, A. Grosso, G. Ramogida, B. Tilia, G. Pucella, G. Rocchi, C. Cianfarani, Matteo Agostini, Luca Boncagni, Daniele Carnevale, V. Piergotti, Salvatore Podda, A. Sibio, Giorgio Maddaluno, A. Pensa, Ftu Team, Gustavo Granucci, F. Causa, B. Esposito, Marco Riva, P. Buratti, William Bin, O. Tudisco, M. Valisa, Tudisco, O., Tilia, B., Sibio, A., Riva, M., Rocchi, G., Pucella, G., Podda, S., Pensa, A., Piergotti, V., Marocco, D., Maddaluno, G., Grosso, A., De Angelis, R., Cianfarani, C., Apruzzese, G., Causa, F., Buratti, P., Boncagni, L., Esposito, B., Ramogida, G., European Commission, and Ministerio de Economía y Competitividad (España)
Subjects: Tokamak FTU, Population, Synchrotron radiation, Electron, Runaway Electron Imaging and Spectrometry System, 01 natural sciences, runaway electron, runaway electrons, tokamak, synchrotron radiation, Frascati Tokamak Upgrade, 010305 fluids & plasmas, Runaway electrons, Settore ING-INF/04 - Automatica, Electric field, 0103 physical sciences, 010306 general physics, education, Cherenkov radiation, REIS, Physics, education.field_of_study, ynchrotron radiation, Bremsstrahlung, Física, Plasma, Radius, Condensed Matter Physics, Computational physics, Nuclear Energy and Engineering, FTU, Atomic physics, Tokamaks
Abstract: Special issue featuring the invited talks from the 43rd EPS Conference on Plasma Physics, Leuven, 4-8 July, 2016 We present an overview of FTU experiments on runaway electron (RE) generation and control carried out through a comprehensive set of real-time (RT) diagnostics/control systems and newly installed RE diagnostics. An RE imaging spectrometer system detects visible and infrared synchrotron radiation. A Cherenkov probe measures RE escaping the plasma. A gamma camera provides hard x-ray radial profiles from RE bremsstrahlung interactions in the plasma. Experiments on the onset and suppression of RE show that the threshold electric field for RE generation is larger than that expected according to a purely collisional theory, but consistent with an increase due to synchrotron radiation losses. This might imply a lower density to be targeted with massive gas injection for RE suppression in ITER. Experiments on active control of disruption-generated RE have been performed through feedback on poloidal coils by implementing an RT boundary-reconstruction algorithm evaluated on magnetic moments. This work was carried out within the framework of the EUROfusion Consortium and received funding from the Euratom research and training programme 2014–2018 under grant agreement No 633053 (Projects MST2-9 and MST2-15). The views and opinions expressed herein do not necessarily reflect those of the European Commission. Additional financial support was received from MINECO (Spain), Projects No. ENE2012-31753 and ENE2015-66444-R. Publicado
Published: 2017

116. Seasonal Modulation of the $^7$Be Solar Neutrino Rate in Borexino

Author: Michael Wurm, F. von Feilitzsch, Aldo Romani, K. Choi, L. Di Noto, M. Carlini, B. Neumair, K. Fomenko, L. Papp, Alessandra Re, Fausto Ortica, J. Martyn, E. Litvinovich, G. Zuzel, D. Basilico, N. Rossi, Matteo Agostini, R. Tartaglia, E. V. Hungerford, Jay Burton Benziger, O. Zaimidoroga, Aldo Ianni, B. Opitz, Z. Yokley, H. Wang, Xuefeng Ding, D. Jeschke, Andrea Ianni, D. Bick, Sandra Zavatarelli, S. Davini, Kai Zuber, V. V. Kobychev, G. Testera, A. Sotnikov, F. Froborg, V. Atroshchenko, F. Lombardi, G. Bonfini, K. Altenmüller, Denis Korablev, Gioacchino Ranucci, P. Shakina, D. A. Semenov, I. N. Machulin, Cristiano Galbiati, Lino Miramonti, A. Razeto, Frank Calaprice, D. Kryn, Michele Montuschi, Manuel Meyer, R. B. Vogelaar, Marco Pallavicini, S. Caprioli, Y. Suvorov, D. D'Angelo, Livia Ludhova, J. Thurn, R. Roncin, Paolo Lombardi, A. M. Goretti, A. S. Chepurnov, Marco Giammarchi, A. Vishneva, M. Goeger-Neff, C. Ghiano, V. N. Muratova, A. Jany, G. Lukyanchenko, Caren Hagner, S. Appel, S. Schönert, Lothar Oberauer, P. Cavalcante, A. V. Derbin, M. Misiaszek, G. Bellini, Matthias Laubenstein, S. Marcocci, L. Borodikhina, M. Toropova, G. Korga, A. Caminata, F. Gabriele, M. Gromov, B. Caccianiga, T. Houdy, M. M. Wojcik, L.F.F. Stokes, E. Meroni, I. S. Drachnev, D. Bravo, B. Lehnert, S. Weinz, S. Manecki, D. Franco, G. Manuzio, A. Pocar, O. Smirnov, E. V. Unzhakov, M. D. Skorokhvatov, 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), BOREXINO, 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Agostini, M., Altenmueller, K., Appel, S., Atroshchenko, V., Basilico, D., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Borodikhina, L., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Caprioli, S., Carlini, M., Cavalcante, P., Chepurnov, A., Choi, K., D'Angelo, D., Davini, S., Derbin, A., Ding, X. F., Di Noto, L., Drachnev, I., Fomenko, K., Franco, D., Froborg, F., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, T., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jany, A., Jeschke, D., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Manuzio, G., Marcocci, S., Martyn, J., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Muratova, V., Neumair, B., Oberauer, L., Opitz, B., Ortica, F., Pallavicini, M., Papp, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Shakina, P., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Stokes, L. F. F., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, E., Wang, H., Weinz, S., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., AstroParticule et Cosmologie ( APC - UMR 7164 ), and Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA )
Subjects: liquid scintillators detectors, Physics - Instrumentation and Detectors, experimental methods, neutrino: solar, Physics::Instrumentation and Detectors, Solar neutrino, low background detectors, Solar neutrinos, 01 natural sciences, flux: time dependence, neutrino: flux, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Liquid scintillators detectors, Low background detectors, Neutrino oscillations, Astronomy and Astrophysics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Borexino, neutrino: interaction, MSW effect, Physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), neutrino electron: elastic scattering, modulation, Amplitude, Modulation, solar neutrinos, Neutrino, Liquid scintillators detector, FLUX, Low background detector, data analysis method, Neutrino oscillation, FOS: Physical sciences, Nuclear physics, TIME-SERIES ANALYSIS, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], SEARCH, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], SPACED DATA, 010306 general physics, background: radioactivity, neutrino oscillations, 010308 nuclear & particles physics, EMPIRICAL MODE DECOMPOSITION, beryllium, Gran Sasso, High Energy Physics::Experiment, neutrino: oscillation, Event (particle physics), experimental results
Abstract: We detected the seasonal modulation of the $^7$Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. The period, amplitude, and phase of the observed time evolution of the signal are consistent with its solar origin, and the absence of an annual modulation is rejected at 99.99\% C.L. The data are analyzed using three methods: the sinusoidal fit, the Lomb-Scargle and the Empirical Mode Decomposition techniques, which all yield results in excellent agreement., Comment: 11 palese, 13 figures
Published: 2017

117. Results from borexino at lngs

Author: C. Ghiano, M. S. Meyer, Caren Hagner, Aldo Ianni, G. Zuzel, P. Cavalcante, S. Appel, Paolo Lombardi, E. V. Hungerford, M. Misiaszek, S. Manecki, D. Kryn, A. Sotnikov, E. Litvinovich, O. Zaimidoroga, Marco Giammarchi, N. Rossi, B. Caccianiga, G. Bonfini, A. Razeto, Frank Calaprice, A. Pocar, I. N. Machulin, P. J. Mosteiro, M. Obolensky, D. D'Angelo, O. Smirnov, C. Galbiati, Matteo Agostini, Livia Ludhova, A. Empl, R. B. Vogelaar, S. Davini, K. Otis, D. A. Semenov, A. M. Goretti, M. Gromov, E. Meroni, E. V. Unzhakov, K. Jedrzejczak, A. Caminata, D. Franco, Marco Pallavicini, A. S. Chepurnov, F. Gabriele, R. Roncin, Lino Miramonti, Alessandra Re, M. Kaiser, A. Vishneva, Andrea Ianni, D. Bick, Sandra Zavatarelli, G. Lukyanchenko, G. Korga, K. Fomenko, Denis Korablev, M. D. Skorokhvatov, R. Tartaglia, F. von Feilitzsch, L. Papp, S. Schönert, A. V. Derbin, S. Marcocci, G. Bellini, V. N. Muratova, M. M. Wojcik, G. Testera, L. Di Noto, Gioacchino Ranucci, A.V. Etenko, D. Bravo, I. S. Drachnev, AstroParticule et Cosmologie (APC (UMR_7164)), 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), BOREXINO, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: Physics, neutrino: solar, Physics::Instrumentation and Detectors, Solar neutrino, Detector, scintillation counter: liquid, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Physics::Geophysics, Gran Sasso, Nuclear physics, Core (optical fiber), p p, Physics::Space Physics, High Energy Physics::Experiment, Borexino, Nuclear Experiment, experimental results
Abstract: International audience; The Borexino experiment is an ultra-pure liquid scintillator detector, running at Laboratori Nazionali del Gran Sasso (Italy). Borexino has completed the real time spectroscopy of the solar neutrinos generated in the proton-proton chain in the core of the Sun. This proceedings reviews the Borexino experiment and the first direct measurement of pp solar neutrinos.
Published: 2017

118. Improvements in the simulation code of the SOX experiment

Author: Kai Zuber, Aldo Ianni, K. Choi, J. M. Link, V. Fischer, C. Veyssiere, Marcin Wójcik, A.V. Etenko, M. Gschwender, D. Bravo, A. V. Derbin, S. Farinon, Z. Yokley, C. Galbiati, S. Marcocci, M. Cribier, Andrea Ianni, D. Bick, I. N. Machulin, M. Toropova, B. Lehnert, G. Manuzio, V. N. Muratova, M. D. Skorokhvatov, Sandra Zavatarelli, Michael Wurm, Lino Miramonti, A. Caminata, Marco Pallavicini, F. Gabriele, M. Carlini, C. Ghiano, Caren Hagner, Livia Ludhova, A. Pocar, V. Atroshchenko, A. S. Chepurnov, D. D'Angelo, O. Smirnov, M. Goeger-Neff, J. Winter, E. V. Unzhakov, S. Weinz, B. Neumair, P. Cavalcante, K. Altenmueller, S. Manecki, Jay Burton Benziger, D. Kryn, G. Korga, M. Misiaszek, K. Fomenko, G. Bellini, Lothar Oberauer, Gioacchino Ranucci, M. Vivier, E. Litvinovich, G. Mention, N. Rossi, A. M. Goretti, F. Lombardi, Matthias Laubenstein, Denis Korablev, K. Jedrzejczak, J. Maricic, F. von Feilitzsch, A. Razeto, S. Appel, G. Lukyanchenko, M. S. Meyer, S. Davini, S. Schönert, D. Jeschke, L. Papp, Aldo Romani, L. Di Noto, D. Franco, R. Musenich, Fausto Ortica, M. Durero, B. Caccianiga, N. Jonquères, J. Thurn, R. Roncin, Y. Suvorov, E. Meroni, G. Bonfini, M. Gromov, Paolo Lombardi, Tobias Lachenmaier, Marco Giammarchi, T. Houdy, Thierry Lasserre, Frank Calaprice, M. Obolensky, I. S. Drachnev, G. Testera, R. Tartaglia, Matteo Agostini, S. V. Sukhotin, O. Zaimidoroga, H. Wang, W. Maneschg, V. V. Kobychev, L. Scola, G. Zuzel, E. V. Hungerford, A. Vishneva, A. Sotnikov, P. J. Mosteiro, Michele Montuschi, J. Gaffiot, A. Jany, V.N. Kornoukhov, Alessandra Re, R. B. Vogelaar, D. A. Semenov, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), 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)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Caminata, A., Agostini, M., Altenmueeller, K., Appel, S., Atroshchenko, V., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Carlini, M., Cavalcante, P., Chepurnov, A., Choi, K., Cribier, M., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Durero, M., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gaffiot, J., Galbiati, C., Gschwender, M., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, Th., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jonqueres, N., Jany, A., Jedrzejczak, K., Jeschke, D., Kobychev, V., Korablev, D., Korga, G., Kornoukhov, V., Kryn, D., Lachenmaier, T., Lasserre, T., Laubenstein, M., Lehnert, B., Link, J., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Manuzio, G., Marcocci, S., Maricic, J., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Musenich, R., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Scola, L., Semenov, D., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Veyssiere, C., Vishneva, A., Vivier, M., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., 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), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: History, Computer science, antineutrino/e: particle source, programming, 01 natural sciences, Education, Physics and Astronomy (all), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Code (cryptography), Calibration, High activity, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], numerical calculations, 010306 general physics, Borexino, Simulation, 010308 nuclear & particles physics, neutrino: sterile, calibration, Computer Science Applications, Neutrino detector, Neutrino
Abstract: 27th International Conference on Neutrino Physics and Astrophysics, NEUTRINO2016, London, UK, 4 Jul 2016 - 9 Jul 2016; Journal of physics / Conference Series 888, 012145 - (2017). doi:10.1088/1742-6596/888/1/012145, Published by IOP Publ., Bristol
Published: 2017

119. Toroidal coupling in the kinetic response to edge magnetic perturbations

Author: M. Spolaore, Gianluca Spizzo, Paolo Scarin, Oliver Schmitz, Roscoe White, D. Terranova, Matteo Agostini, M. Veranda, and N. Vianello
Subjects: Physics, Coupling, Nuclear and High Energy Physics, Toroid, chaos, Edge (geometry), Condensed Matter Physics, Kinetic energy, 01 natural sciences, Molecular physics, 010305 fluids & plasmas, Physics::Plasma Physics, 0103 physical sciences, magnetic islands, magnetic perturbations, tokamaks, 010306 general physics, Computer Science::Databases
Abstract: The magnetic topology of the stochastic edge of a helical reversed-field pinch, with helicity m/n, shows to be deeply influenced by higher harmonics (m +/- 1)/n, with the same n, due to toroidal coupling. As a consequence, by measuring kinetic quantities in a particular theta, phi location, one can incur in substantial errors or mis-interpretations of the kinetic plasma response: only a full 3D coverage of theta, phi angles can reveal the real topology of the plasma. This can be a caveat for MP application in tokamaks, because it shows that toroidal and poloidal sidebands, though smaller than the base mode by a factor similar to epsilon = a/R, can have a sizable effect on the kinetic response of the edge plasma, and thus on related issues (for example, ELM stabilization and suppression).
Published: 2017
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120. Test of the electron stability with the Borexino detector

Author: D. A. Semenov, D. Kryn, G. Lukyanchenko, K. de Kerret, S. Appel, Matthias Laubenstein, Andrea Ianni, D. Bick, Sandra Zavatarelli, R. Tartaglia, M. Carlini, S. Marcocci, S. V. Sukhotin, P. J. Mosteiro, Michele Montuschi, B. Lehnert, O. Zaimidoroga, B. Caccianiga, M. Gromov, K. Choi, H. Wang, B. Neumair, G. Korga, C. Ghiano, Caren Hagner, V. V. Kobychev, A. Caminata, K. Fomenko, M. Goeger-Neff, A.V. Etenko, Marco Pallavicini, F. Gabriele, A. Jany, E. Meroni, D. Bravo, D. Franco, Marco Giammarchi, Alessandra Re, M. M. Wojcik, P. Cavalcante, M. Misiaszek, G. Bonfini, E. V. Hungerford, G. Testera, Aldo Romani, Lino Miramonti, A. Sotnikov, Kai Zuber, L. Di Noto, Frank Calaprice, W. Maneschg, F. von Feilitzsch, G. Zuzel, M. Obolensky, Matteo Agostini, Z. Yokley, S. Schönert, K. Altenmüller, Jay Burton Benziger, I. N. Machulin, J. Thurn, L. Papp, R. B. Vogelaar, M. D. Skorokhvatov, Michael Wurm, S. Manecki, C. Galbiati, Livia Ludhova, V. Atroshchenko, R. Roncin, V. N. Muratova, D. D'Angelo, G. Bellini, Y. Suvorov, A. S. Chepurnov, Fausto Ortica, Gioacchino Ranucci, Lothar Oberauer, M. Toropova, Denis Korablev, G. Manuzio, H. A. Derbin, A. Vishneva, Aldo Ianni, M. S. Meyer, F. Lombardi, D. Jeschke, Paolo Lombardi, A. Razeto, S. Davini, I. S. Drachnev, O. Smirnov, E. Litvinovich, N. Rossi, E. V. Unzhakov, A. M. Goretti, J. Winter, K. Jedrzejczak, S. Weinz, A. Pocar, AstroParticule et Cosmologie (APC (UMR_7164)), 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), BOREXINO, 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Vishneva, A., Agostini, M., Altenmueller, K., Appel, S., Atroshshenko, V., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Carlini, M., Cavalcante, P., Chepurnov, A., Choi, K., D'Angelo, D., Davini, S., de Kerret, K., Derbin, H. A., Di Noto, L., Drachnev, I., Etenko, A., Fomenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jany, A., Jedrzejczak, K., Jeschke, D., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstien, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Manuzio, G., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimodoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: History, Particle physics, Physics::Instrumentation and Detectors, Electron, 01 natural sciences, Electric charge, Particle detector, Education, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, charge: conservation law, [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, Borexino, Physics, Charge conservation, 010308 nuclear & particles physics, new physics, electron: stability, electron: decay, 3. Good health, Computer Science Applications, Neutrino detector, Neutrino, Lepton, experimental results
Abstract: International audience; Despite the fact that the electric charge conservation law is confirmed by many experiments, search for its possible violation remains a way of searching for physics beyond the Standard Model. Experimental searches for the electric charge non-conservation mainly consider electron decays into neutral particles. The Borexino experiment is an excellent tool for the electron decay search due to the highest radiopurity among all the existing experiments, large detector mass, and good sensitivity at low energies. The process considered in this study is a decay into a photon and a neutrino, for which a new lower limit on the electron lifetime is obtained. This is the best electron lifetime limit up to date, exceeding the previous one obtained at the Borexino prototype at two orders of magnitude.
Published: 2017

121. Borexino: Recent results and future plans

Author: A. Vishneva, Matthias Laubenstein, Hui Wang, M. Goeger-Neff, J. Winter, D. Franco, E. Meroni, Marcin Wójcik, V. N. Muratova, F. Lombardi, Denis Korablev, A. Razeto, Alessandra Re, O. Smirnov, C. Ghiano, B. Neumair, G. Korga, Caren Hagner, M. D. Skorokhvatov, Michael Wurm, E. V. Unzhakov, K. Fomenko, R. Roncin, I. S. Drachnev, P. Cavalcante, S. Marcocci, M. Toropova, M. Obolensky, A. V. Derbin, R. B. Vogelaar, F. von Feilitzsch, M. Misiaszek, Z. Yokley, E. Litvinovich, G. Testera, A. Caminata, Matteo Agostini, N. Rossi, F. Gabriele, S. Schönert, L. Papp, D. Kryn, G. Zuzel, S. V. Sukhotin, O. Yu. Smirnov, Y. Suvorov, M. Gromov, Kai Zuber, Aldo Ianni, E. V. Hungerford, O. Zaimidoroga, Livia Ludhova, R. Tartaglia, Cristiano Galbiati, Andrea Ianni, Lothar Oberauer, D. Bick, Sandra Zavatarelli, Fausto Ortica, A. M. Goretti, A. S. Chepurnov, A. Sotnikov, L. Perasso, A. Pocar, V. V. Kobychev, A.V. Etenko, G. Bonfini, P. J. Mosteiro, B. Lehnert, Michele Montuschi, D. Bravo, Frank Calaprice, D. A. Semenov, Gioacchino Ranucci, Aldo Romani, L. Di Noto, Hardy Simgen, Manuel Meyer, Marco Giammarchi, Paolo Lombardi, W. Maneschg, S. Davini, J. Thurn, S. Weinz, K. Jedrzejczak, I. N. Machulin, Marco Pallavicini, D. D'Angelo, S. Manecki, S. Appel, B. Caccianiga, M. Kaiser, Jay Burton Benziger, G. Lukyanchenko, G. Bellini, Lino Miramonti, 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), BOREXINO, 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), 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Smirnov, O. Yu., Agostini, M., Appel, S., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Etenko, A., Fomenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schonert, S., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., and Zuzel, G.
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Particle detector, Automatic Keywords, Neutrino detector, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Borexino, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics
Abstract: International audience; Borexino is continuing to take data and presenting the new results. The most recent Borexino results are discussed and plans for the nearest future are presented.
Published: 2017

122. Design concepts of machine upgrades for the RFX-mod experiment

Author: L. Trevisan, Alessandra Canton, Nicolò Marconato, Marco Valisa, Giuseppe Marchiori, Matteo Agostini, Maria Ester Puiatti, Piergiorgio Sonato, Matteo Vallar, Nisarg Patel, R. Delogu, Piero Agostinetti, Simone Peruzzo, Monica Spolaore, Samuele Dal Bello, Alessandro Fassina, P. Vincenzi, Lionello Marrelli, Roberto Cavazzana, Tommaso Bolzonella, Luca Grando, P. Zanca, Lorella Carraro, M. Siragusa, Gianluca De Masi, Paolo Scarin, A. Zamengo, Mauro Dalla Palma, Paolo Innocente, Paolo Bettini, Marco Bernardi, and Loris Zanotto
Subjects: Tokamak, Computer science, Mechanical engineering, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, Physics::Plasma Physics, 0103 physical sciences, Vacuum sealing, General Materials Science, Ceramic-metal brazing, Fusion devices, RFP configuration, Civil and Structural Engineering, Materials Science (all), Nuclear Energy and Engineering, Mechanical Engineering, 010306 general physics, Resistive touchscreen, Toroid, Reversed field pinch, Upgrade, Magnet, Magnetohydrodynamics, Engineering design process
Abstract: After 10 years of operation since its major modification, an upgrade of the RFX-mod experiment is presently under design. The scientific objective is the improvement of 3D physics studies through a more robust transition to higher confinement regimes in both Reversed Field Pinch (RFP) and Tokamak configuration obtained thanks to an advanced system for the active control of MHD instabilities. The main design driver requirements for this machine upgrade are the removal of the present resistive vacuum vessel and the enhancement of the ‘shell-plasma proximity’, to reduce the deformation of the last close magnetic surface and to improve the self-organized helical plasma regimes. The fulfillment of these requirements implies a major change of the internal components of the machine such as the replacement of the whole first wall, the change of the support system of the stabilizing shell and the modification of the present toroidal support structure to provide the function of vacuum barrier. In combination, other components of the machine will be upgraded, such as magnets and power supply, diagnostic systems and a NBI will be integrated. The paper presents an overview of the engineering design of the new components and highlights the critical aspects of the new torus assembly.
Published: 2017

123. Limit on the radiative neutrinoless double electron capture of $$^{36}$$ 36 Ar from GERDA Phase I

Author: Marc Walter, O.I. Kochetov, J. Janicskó Csáthy, D. Palioselitis, S. T. Belyaev, A. M. Gangapshev, H. Wilsenach, V. I. Gurentsov, R. Brugnera, C. Wiesinger, M. Stepaniuk, M. Heisel, V. V. Kuzminov, Matteo Agostini, B. Lehnert, I. Zhitnikov, A. Domula, C. Macolino, R. Mingazheva, Bayarto Lubsandorzhiev, M. Shirchenko, K. Freund, L. V. Inzhechik, L. B. Bezrukov, B. Schwingenheuer, Oliver Schulz, A. V. Veresnikova, M. Balata, E. Doroshkevich, O. Fedorova, A. Chernogorov, E. V. Demidova, V.B. Brudanin, A. Lazzaro, Alberto Pullia, Hardy Simgen, I. V. Kirpichnikov, E. Medinaceli, I. R. Barabanov, N. Frodyma, A. Garfagnini, M. Miloradovic, W. Maneschg, E. A. Yanovich, S. V. Zhukov, Alessandro Bettini, V. Egorov, S. Belogurov, A.-K. Schütz, V. I. Lebedev, J. Schreiner, A. Hegai, G. Heusser, A. Kirsch, Marcin Wójcik, P. Grabmayr, N. Barros, M. Salathe, L. Vanhoefer, T. Bode, K. T. Knöpfle, Cinzia Sada, Manfred Lindner, P. Moseev, S. Hemmer, Luciano Pandola, R. Kneißl, Matthias Laubenstein, Giovanni Benato, A. A. Klimenko, N. Rumyantseva, V. Wagner, A. Wegmann, O. Selivanenko, C. Gooch, Igor Nemchenok, A. A. Vasenko, K. N. Gusev, B. Schneider, Bela Majorovits, Thomas Kihm, Josef Jochum, V. V. Kazalov, D. R. Zinatulina, G. Zuzel, Ivano Lippi, V. D'Andrea, A. Kish, Mikael Hult, J. Hakenmüller, Stefano Riboldi, K. Panas, M. Misiaszek, M. Allardt, E. Bellotti, A. di Vacri, Werner Hofmann, Allen Caldwell, Luca Stanco, F. Salamida, K. von Sturm, T. Wester, A.A. Smolnikov, C. Cattadori, Kai Zuber, D. Borowicz, Christian Bauer, A. Lubashevskiy, Stefan Schönert, M. Junker, Laura Baudis, V. N. Kornoukhov, H. Y. Liao, K. Pelczar, Guillaume Lutter, A. M. Bakalyarov, R. Falkenstein, and C. Schmitt
Subjects: Physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron capture, High Energy Physics::Phenomenology, Phase (waves), chemistry.chemical_element, Germanium, Physics::Data Analysis, Statistics and Probability, 01 natural sciences, 7. Clean energy, Lepton number, Semiconductor detector, Nuclear physics, MAJORANA, chemistry, 0103 physical sciences, Radiative transfer, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of $^{36}$Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of $^{36}$Ar was established: $T_{1/2} > $ 3.6 $\times$ 10$^{21}$ yr at 90 % C.I.
Published: 2016

124. Progress On Diagnostics Of The Iter Neutral Beam Test Facility

Author: R. Delogu, Mauro Dalla Palma, Gabriele Croci, Federica Bonomo, N. Fonnesu, Silvia Spagnolo, Giuseppe Gorini, Roberto Pasqualotto, A. Muraro, Matteo Agostini, Marco Tardocchi, M. Brombin, G. Serianni, N. Pomaro, Marco Barbisan, Barbara Zaniol, Monica Spolaore, and Michela De Muri
Subjects: Materials science, Test facility, Nuclear engineering, Beam (structure)
Published: 2016

125. Solar neutrino detectors as sterile neutrino hunters

Author: Aldo Ianni, S. Marcocci, M. Cribier, M. S. Meyer, M. Toropova, O. Smirnov, V.N. Kornoukhov, M. D. Skorokhvatov, L. Papp, Michael Wurm, E. V. Unzhakov, Andrea Ianni, D. Bick, Sandra Zavatarelli, A. V. Derbin, Z. Yokley, Alessandra Re, V. Fischer, S. Manecki, S. Farinon, Fausto Ortica, A. Caminata, F. Gabriele, V. Atroshchenko, Marcin Wójcik, Paolo Lombardi, Thierry Lasserre, G. Bonfini, M. Gschwender, D. Jeschke, Frank Calaprice, M. Goeger-Neff, P. J. Mosteiro, R. B. Vogelaar, V. N. Muratova, R. Tartaglia, Michele Montuschi, Lothar Oberauer, F. von Feilitzsch, K. Altenmüller, N. Jonquères, A.V. Etenko, S. Schönert, O. Zaimidoroga, Matthias Laubenstein, J. Winter, H. Wang, D. Bravo, D. A. Semenov, I. S. Drachnev, P. Cavalcante, V. V. Kobychev, Lino Miramonti, Tobias Lachenmaier, Marco Giammarchi, A. Pocar, D. Franco, J. Maricic, W. Maneschg, R. Musenich, M. Carlini, G. Lukyanchenko, C. Ghiano, G. Testera, E. Meroni, B. Neumair, Caren Hagner, K. Fomenko, Matteo Agostini, Y. Reinert, O. Cloué, Gioacchino Ranucci, L. Scola, D. Kryn, M. Gromov, M. Durero, M. Vivier, T. Houdy, Cristiano Galbiati, Y. Suvorov, S. Davini, M. Misiaszek, Livia Ludhova, A. M. Goretti, A. S. Chepurnov, E. Litvinovich, G. Mention, N. Rossi, F. Lombardi, A. Razeto, Denis Korablev, G. Bellini, G. Korga, C. Veyssiere, A. Vishneva, K. Choi, I. N. Machulin, Marco Pallavicini, D. D'Angelo, S. Appel, J. M. Link, Jay Burton Benziger, B. Caccianiga, Kai Zuber, N. Berton, J. Gaffiot, K. Jedrzejczak, B. Lehnert, S. Weinz, G. Zuzel, E. V. Hungerford, A. Sotnikov, A. Jany, Aldo Romani, L. Di Noto, J. Thurn, R. Roncin, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Département de Physique Nucléaire (ex SPhN) (DPHN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Service des Réacteurs et de Mathématiques Appliquées (SERMA), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Borexino-SOX, 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), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Service d’Études des Réacteurs et de Mathématiques Appliquées (SERMA)
Subjects: History, Sterile neutrino, Particle physics, neutrino: solar, Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, 01 natural sciences, 7. Clean energy, Education, Physics and Astronomy (all), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Neutrino oscillation, nuclide, Borexino, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Solar neutrino problem, neutrino: sterile, Computer Science Applications, praseodymium, Gran Sasso, neutrino: detector, Neutrino detector, cerium: nuclide, High Energy Physics::Experiment, neutrino: oscillation, Neutrino astronomy, Neutrino, antineutrino: particle source, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; The large size and the very low radioactive background of solar neutrino detectors such as Borexino at the Gran Sasso Laboratory in Italy offer a unique opportunity to probe the existence of neutrino oscillations into new sterile components by means of carefully designed and well calibrated anti-neutrino and neutrino artificial sources. In this paper we briefly summarise the key elements of the SOX experiment, a program for the search of sterile neutrinos (and other short distance effects) by means of a (144)Ce-(144)Pr anti-neutrino source and, possibly in the medium term future, with a (51)Cr neutrino source.
Published: 2016

126. A surface acoustic wave (SAW)-enhanced grating-coupling phase-interrogation surface plasmon resonance (SPR) microfluidic biosensor

Author: Marco Travagliati, Gina Greco, Domenica Liuni, Gianluca Ruffato, Filippo Romanato, Marco Cecchini, Matteo Agostini, Agnese Sonato, and Enrico Gazzola
Subjects: Biotin binding, ADSORPTION, DEVICES, Materials science, Surface Properties, education, Lithium niobate, Microfluidics, Biomedical Engineering, EFFICIENT, Bioengineering, Nanotechnology, 02 engineering and technology, 01 natural sciences, Biochemistry, POLARIZATION MODULATION, chemistry.chemical_compound, Lab-On-A-Chip Devices, IMPLEMENTATION, SENSORS, Surface plasmon resonance, Biochip, biology, 010401 analytical chemistry, Surface acoustic wave, General Chemistry, DRIVEN, Surface Plasmon Resonance, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Kinetics, Sound, chemistry, biology.protein, ACOUSTOFLUIDICS, 0210 nano-technology, Biosensor, SYSTEM, Avidin
Abstract: A surface acoustic wave (SAW)-enhanced, surface plasmon resonance (SPR) microfluidic biosensor in which SAW-induced mixing and phase-interrogation grating-coupling SPR are combined in a single lithium niobate lab-on-a-chip is demonstrated. Thiol-polyethylene glycol adsorption and avidin/biotin binding kinetics were monitored by exploiting the high sensitivity of grating-coupling SPR under azimuthal control. A time saturation binding kinetics reduction of 82% and 24% for polyethylene and avidin adsorption was obtained, respectively, due to the fluid mixing enhancement by means of the SAW-generated chaotic advection. These results represent the first implementation of a nanostructured SAW-SPR microfluidic biochip capable of significantly improving the molecule binding kinetics on a single, portable device. In addition, the biochip here proposed is suitable for a great variety of biosensing applications.
Published: 2016

127. Borexino: from the Sun to the Earth

Author: M. Obolensky, Aldo Ianni, B. Neumair, G. Korga, K. Fomenko, R. Tartaglia, F. von Feilitzsch, Z. Yokley, M. S. Meyer, V. N. Muratova, E. Litvinovich, D. Kryn, N. Rossi, M. Göger-Neff, F. Lombardi, Paolo Lombardi, L. Papp, S. V. Sukhotin, O. Zaimidoroga, H. Wang, R. Roncin, A. Razeto, Fausto Ortica, Y. Suvorov, D. A. Semenov, V. V. Kobychev, L. Perasso, Lothar Oberauer, A. Empl, Matthias Laubenstein, A.V. Etenko, W. Maneschg, G. Bonfini, M. Gromov, D. Bravo, J. Winter, Frank Calaprice, A. M. Goretti, A. V. Derbin, Hardy Simgen, C. Ghiano, G. Zuzel, C. Galbiati, Caren Hagner, E. V. Hungerford, E. Meroni, L. Pagani, G. Lukyanchenko, S. Davini, Romain Roncin, A. Sotnikov, K. Jedrzejczak, D. Franco, M. D. Skorokhvatov, Michael Wurm, Livia Ludhova, P. Cavalcante, S. Marcocci, M. Toropova, B. Lehnert, M. Misiaszek, A. S. Chepurnov, Gioacchino Ranucci, A. Caminata, Marco Pallavicini, F. Gabriele, Denis Korablev, M. Kaiser, Kai Zuber, A. Pocar, Jay Burton Benziger, O. Smirnov, K. Otis, E. V. Unzhakov, S. Manecki, G. Testera, Marco Giammarchi, Andrea Ianni, D. Bick, Sandra Zavatarelli, Matteo Agostini, P. J. Mosteiro, Michele Montuschi, J. Thurn, M. M. Wojcik, Aldo Romani, Lino Miramonti, G. Bellini, S. Appel, B. Caccianiga, I. N. Machulin, and S. Schönert
Subjects: Physics, Astronomy, Humanities, Borexino
Abstract: M. Agostini, K. Altenmuller, S. Appel, G. Bellini, J. Benziger, D. Bick, G. Bonfini, D. Bravo, B. Caccianiga, F. Calaprice, A. Caminata, P. Cavalcante, A. Chepurnov, D. D’Angelo, S. Davini, A. Derbin, L. di Noto, I. Drachnev, A. Empl, A. Etenko, K. Fomenko, D. Franco, F. Gabriele, C. Galbiati, C. Ghiano, M. Giammarchi, M. Goger-Neff, A. Goretti, M. Gromov, C. Hagner, E. Hungerford, Aldo Ianni, Andrea Ianni, K. Jedrzejczak, M. Kaiser, V. Kobychev, D. Korablev, G. Korga, D. Kryn, M. Laubenstein, B. Lehnert, E. Litvinovich, F. Lombardi, P. Lombardi, L. Ludhova, G. Lukyanchenko, I. Machulin, S. Manecki, W. Maneschg, S. Marcocci, E. Meroni, M. Meyer, L. Miramonti, M. Misiaszek, M. Montuschi, P. Mosteiro, V. Muratova, B. Neumair, L. Oberauer, M. Obolensky, F. Ortica, K. Otis, L. Pagani, M. Pallavicini, L. Papp, L. Perasso, A. Pocar, G. Ranucci, A. Razeto, A. Re, A. Romani, R. Roncin, N. Rossi, S. Schonert, D. Semenov, H. Simgen, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, G. Testera, J. Thurn, M. Toropova, E. Unzhakov, R.B. Vogelaar, F. von Feilitzsch, H. Wang, J. Winter, M. Wojcik, M. Wurm, Z. Yokley, O. Zaimidoroga, S. Zavatarelli, K. Zuber, G. Zuzel
Published: 2016

128. Fast Thermal Helium Beam diagnostic for measurements of edge electron profiles and fluctuations

Author: L. Franchin, C. Taliercio, Matteo Agostini, A. Tiso, P. Scarin, L. Carraro, Luca Grando, and Roberto Cavazzana
Subjects: Photomultiplier, Electron density, Radial profiles, Multi-anode photomultipliers, Equipment, chemistry.chemical_element, Photodetector, Electron, Beam diagnostics, Helium, 01 natural sciences, 010305 fluids & plasmas, Optics, 0103 physical sciences, 010306 general physics, Instrumentation, Spectrograph, Fusion experiments, Physics, Time evolutions, business.industry, Interface hardware, High frequency fluctuations, chemistry, Plasma diagnostics, Electron profile, business, Beam (structure)
Abstract: The edge of fusion experiments is a region where strong gradients develop, together with the presence of strong fluctuations due to turbulence. The thermal helium beam diagnostic developed for the RFX-mod experiment allows the measurements with a single diagnostic of both low frequency time evolution of the edge radial profiles of electron density and temperature (tens of hertz), and the high frequency fluctuations (hundreds of kHz). To maximize the collected light, the three HeI lines necessary to be measured for the evaluation of n(e) and T(e) are separated with a spectrograph, and multianode photomultipliers are used as light detectors. The paper describes the diagnostic setup, with the interface hardware with the machine and the optical layout, and the characterization of its performances.
Published: 2016

129. Understanding the detector behavior through Montecarlo and calibration studies in view of the SOX measurement

Author: Z. Yokley, V.N. Kornoukhov, M. Vivier, Alessandra Re, Marcin Wójcik, Lothar Oberauer, K. Jedrzejczak, R. B. Vogelaar, C. Veyssiere, Tobias Lachenmaier, Jay Burton Benziger, Marco Giammarchi, Aldo Ianni, K. Choi, E. V. Hungerford, Matthias Laubenstein, A. Pocar, A. Caminata, Marco Pallavicini, F. Gabriele, D. Kryn, B. Lehnert, Andrea Ianni, D. Bick, Sandra Zavatarelli, J. M. Link, Lino Miramonti, P. J. Mosteiro, Y. Suvorov, A. Sotnikov, M. Kaiser, Livia Ludhova, N. Berton, C. Ghiano, Caren Hagner, Michele Montuschi, A. M. Goretti, S. Weinz, Matteo Agostini, O. Smirnov, E. Meroni, Anton Empl, M. Goeger-Neff, A. S. Chepurnov, P. Cavalcante, Kai Zuber, D. A. Semenov, E. V. Unzhakov, Aldo Romani, E. Litvinovich, G. Mention, J. Winter, L. Di Noto, N. Rossi, G. Lukyanchenko, M. Misiaszek, K. Altenmüller, D. Franco, V. N. Muratova, G. Bellini, L. Scola, S. Manecki, B. Neumair, S. Davini, V. Fischer, G. Korga, K. Fomenko, S. Schönert, G. Zuzel, J. Thurn, R. Roncin, A. Vishneva, G. Testera, M. Cribier, S. Marcocci, A. V. Derbin, S. Farinon, M. Toropova, J. Maricic, F. von Feilitzsch, Denis Korablev, G. Bonfini, J. Gaffiot, Frank Calaprice, I. N. Machulin, Hardy Simgen, L. Perasso, L. Papp, Gioacchino Ranucci, Fausto Ortica, D. D'Angelo, S. Appel, A.V. Etenko, D. Bravo, B. Caccianiga, M. Durero, Cristiano Galbiati, R. Tartaglia, W. Maneschg, M. D. Skorokhvatov, Michael Wurm, Thierry Lasserre, S. V. Sukhotin, O. Zaimidoroga, H. Wang, V. V. Kobychev, M. Obolensky, M. S. Meyer, Paolo Lombardi, R. Musenich, N. Jonquères, M. Gromov, T. Houdy, F. Lombardi, A. Razeto, I. S. Drachnev, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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 Paris Cité (UPCité), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Caminata, A., Agostini, M., Altenmueller, K., Appel, S., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravos, D., Caccianiga, B., Calaprice, F., Cavalcante, P., Chepurnov, A., Choi, K., Cribier, M., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Durero, M., Empl, A., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gaffiot, J., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, T., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jonqueres, N., Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kornoukhov, V., Kryn, D., Lachenmaier, T., Lasserre, T., Laubenstein, M., Lehnert, B., Link, J., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Maricic, J., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Musenich, R., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Scola, L., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Veyssiere, C., Vishneva, A., Vivier, M., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., 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), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: History, Geoneutrino, Calibration (statistics), Physics::Instrumentation and Detectors, Nuclear engineering, Monte Carlo method, 01 natural sciences, programming, Particle detector, Education, Physics and Astronomy (all), 0103 physical sciences, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Simulation, Borexino, Physics, 010308 nuclear & particles physics, Detector, neutrino: sterile, calibration, Computer Science::Computers and Society, Computer Science Applications, Neutrino detector, High Energy Physics::Experiment, Neutrino, numerical calculations: Monte Carlo, performance
Abstract: International audience; Borexino is an unsegmented neutrino detector operating at LNGS in central Italy. The experiment has shown its performances through its unprecedented accomplishments in the solar and geoneutrino detection. These performances make it an ideal tool to accomplish a state- of-the-art experiment able to test the existence of sterile neutrinos (SOX experiment). For both the solar and the SOX analysis, a good understanding of the detector response is fundamental. Consequently, calibration campaigns with radioactive sources have been performed over the years. The calibration data are of extreme importance to develop an accurate Monte Carlo code. This code is used in all the neutrino analyses. The Borexino-SOX calibration techniques and program and the advances on the detector simulation code in view of the start of the SOX data taking are presented. (1)
Published: 2016

130. High significance measurement of the terrestrial neutrino flux with the Borexino detector

Author: S. Appel, B. Caccianiga, I. N. Machulin, D. D'Angelo, O. Smirnov, R. B. Vogelaar, Matthias Laubenstein, B. Lehnert, M. D. Skorokhvatov, Michael Wurm, D. Bick, Sandra Zavatarelli, E. Litvinovich, Denis Korablev, N. Rossi, Matteo Agostini, E. V. Unzhakov, G. Korga, S. Weinz, C. Ghiano, J. Winter, Alessandra Re, V. N. Muratova, G. Bellini, A. Caminata, Aldo Romani, Marco Pallavicini, Caren Hagner, F. Gabriele, M. Gromov, P. J. Mosteiro, Michele Montuschi, G. Zuzel, D. Franco, E. V. Hungerford, L. Di Noto, R. Tartaglia, Barbara Ricci, B. Neumair, K. Fomenko, E. Meroni, A. Sotnikov, K. Jedrzejczak, Aldo Ianni, G. Bonfini, S. Davini, I. S. Drachnev, W. Maneschg, A. V. Derbin, P. Cavalcante, Frank Calaprice, L. Perasso, D. Kryn, Manuel Meyer, Hardy Simgen, Jay Burton Benziger, J. Thurn, F. von Feilitzsch, Cristiano Galbiati, Fabio Mantovani, R. Roncin, M. Misiaszek, Kai Zuber, S. Schönert, Z. Yokley, Paolo Lombardi, L. Papp, Lino Miramonti, S. Manecki, Fausto Ortica, S. V. Sukhotin, D. A. Semenov, S. Marcocci, M. Toropova, O. Zaimidoroga, G. Lukyanchenko, H. Wang, A.V. Etenko, G. Testera, A. Pocar, M. Göger-Neff, K. Altenmüller, D. Bravo, Marco Giammarchi, V. V. Kobychev, Y. Suvorov, Livia Ludhova, M. Obolensky, F. Lombardi, Marcin Wójcik, Lothar Oberauer, A. M. Goretti, A. S. Chepurnov, A. Razeto, Gioacchino Ranucci, Giovanni Fiorentini, M. Kaiser, A. Vishneva, AstroParticule et Cosmologie (APC (UMR_7164)), 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 Paris Cité (UPCité), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), 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), Ianni, A., Agostini, M., Altenmueller, K., Appel, S., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Etenko, A., Fiorentini, G., Fornenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neffm, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Mantovani, F., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Ricci, B., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhoting, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., and Zuzel, G.
Subjects: History, Particle physics, Solar neutrino, Flux, 010502 geochemistry & geophysics, 01 natural sciences, neutrino: flux, NO, Education, Nuclear physics, talk: Torino 2015/09/07, Physics and Astronomy (all), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Borexino, 0105 earth and related environmental sciences, Physics, 010308 nuclear & particles physics, Detector, Computer Science Applications, Neutrino detector, Measurements of neutrino speed, neutrino: geophysics, Neutrino, experimental results
Abstract: International audience; We review the geoneutrino measurement with Borexino from 2056 days of data taking.
Published: 2016

131. Overview and accomplishments of the Borexino experiment

Author: A.V. Etenko, A. V. Derbin, D. Bravo, M. Kaiser, Andrea Ianni, D. Bick, Sandra Zavatarelli, Kai Zuber, R. Tartaglia, M. Goeger-Neff, J. Winter, G. Lukyanchenko, Jay Burton Benziger, D. Franco, I. S. Drachnev, E. Litvinovich, Denis Korablev, A. Vishneva, N. Rossi, Aldo Romani, L. Di Noto, G Bellini, K. Jedrzejczak, W. Maneschg, S. Schönert, S. Manecki, B. Neumair, B. Lehnert, M. Gromov, V. N. Muratova, G. Korga, K. Fomenko, J. Thurn, R. Roncin, M. S. Meyer, Y. Suvorov, D. A. Semenov, Marcin Wójcik, Livia Ludhova, S. Weinz, L. Perasso, G. Zuzel, E. V. Hungerford, A. M. Goretti, A. S. Chepurnov, F. von Feilitzsch, Paolo Lombardi, F. Lombardi, M. D. Skorokhvatov, Michael Wurm, Cristiano Galbiati, D. Kryn, M. Obolensky, A. Razeto, A. Sotnikov, L. Papp, Fausto Ortica, G. Testera, S. Marcocci, Lino Miramonti, A. Pocar, M. Toropova, Gioacchino Ranucci, S. V. Sukhotin, O. Smirnov, O. Zaimidoroga, H. Wang, V. V. Kobychev, E. V. Unzhakov, C. Ghiano, Caren Hagner, P. Cavalcante, M. Misiaszek, A. Caminata, Marco Pallavicini, F. Gabriele, G. Bonfini, Frank Calaprice, Hardy Simgen, S. Appel, R. B. Vogelaar, Marco Giammarchi, Aldo Ianni, Matteo Agostini, B. Caccianiga, S. Davini, Alessandra Re, P. J. Mosteiro, Michele Montuschi, I. N. Machulin, D. D'Angelo, Z. Yokley, Lothar Oberauer, Matthias Laubenstein, E. Meroni, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Borexino, 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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), Ranucci, G., Agostini, M., Appel, S., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Etenko, A., Fomenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., and Zuzel, G.
Subjects: History, neutrino: solar, Physics::Instrumentation and Detectors, Solar neutrino, review, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, neutrino: flux, Education, Nuclear physics, Physics and Astronomy (all), energy: solar, star, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Borexino, Physics, Solar energetic particles, business.industry, background, Astronomy, oscillation, Solar energy, Computer Science Applications, Gran Sasso, Massless particle, NEUTRINOS, Neutrino detector, Physics::Space Physics, Neutrino, business, Lepton
Abstract: International audience; The Borexino experiment is running at the Laboratori del Gran Sasso in Italy since 2007. Its technical distinctive feature is the unprecedented ultralow background of the inner scintillating core, which is the basis of the outstanding achievements accumulated by the experiment. In this talk, after recalling the main features of the detector, the impressive solar data gathered so far by the experiment will be summarized, with special emphasis to the most recent and prominent result concerning the detection of the fundamental pp solar neutrino flux, which is the direct probe of the engine mechanism powering our star. Such a milestone measurement puts Borexino in the unique situation of being the only experiment able to do solar neutrino spectroscopy over the entire solar spectrum, the counterpart of this peculiar status in the oscillation interpretation of the data is the capability of Borexino alone to perform the full validation across the solar energy range of the MSW-LMA paradigm. The talk will be concluded highlighting the perspectives for the final stage of the solar program of the experiment, centered on the goal to fully complete the solar spectroscopy with the missing piece of the CNO neutrinos. If successful, such a measurement would represent the final crowning of the long quest of Borexino to unravel all the properties of the neutrinos from the Sun.
Published: 2016

132. SOX : short distance neutrino oscillations with Borexino

Author: Lino Miramonti, A. Caminata, A.V. Etenko, F. Gabriele, M. Vivier, F. Lombardi, V. Fischer, G. Zuzel, D. Korablev, M. Cribier, P. J. Mosteiro, S. Gazzana, Hui Wang, B. Lehnert, G. Bellini, M. Montuschi, Aldo Romani, Laura Cadonati, R. Tartaglia, G. Bonfini, J. Winter, N. Berton, S. Marcocci, L. Di Noto, Michael Meyer, J. Gaffiot, L. Papp, Matteo Agostini, D. Franco, S. Farinon, Frank Calaprice, Kai Zuber, Lothar Oberauer, L. Scola, M. Göger-Neff, A. Razeto, Hardy Simgen, D. Bravo-Berguño, E. V. Hungerford, Fausto Ortica, Matthias Laubenstein, W. Maneschg, V. N. Muratova, S. Schönert, A. Sotnikov, Aldo Ianni, A. E. Chavarria, L. Perasso, Gioacchino Ranucci, M. D. Skorokhvatov, Michael Wurm, L. Grandi, R. B. Vogelaar, Alessandra Re, Andrea Ianni, C. Salvo, Livia Ludhova, E. Meroni, R. Saldanha, D. Bick, Sandra Zavatarelli, A. M. Goretti, A. S. Chepurnov, K. Fomenko, Q. Meindl, F. von Feilitzsch, A. V. Derbin, Thierry Lasserre, C. Veyssiere, M. Durero, G. Testera, Cristiano Galbiati, Marco Giammarchi, S. Davini, N. Rossi, R. Musenich, N. Jonquères, J. Maricic, M. Gromov, T. Houdy, E. Litvinovich, G. Mention, I. N. Machulin, Marco Pallavicini, D. D'Angelo, Y. Suvorov, T. Lewke, D. Kryn, Jonathan M. Link, O. Smirnov, G. Korga, S. Manecki, K. Otis, B. Caccianiga, C. Ghiano, Anton Empl, Caren Hagner, P. Cavalcante, M. Misiaszek, K. Althenmüller, A. Pocar, M. Obolensky, Marcin Wójcik, S. V. Sukhotin, A. Wright, O. Zaimidoroga, G. Lukyanchenko, V. V. Kobychev, Paolo Lombardi, Jay Burton Benziger, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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), SOX, 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Bravo-Berguño, D., Suvorov, Y., Et, Al., Bureau de Conception Calculs et Réalisations (BCCR), Service d'Etudes Mécaniques et Thermiques (SEMT), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Modélisation des Systèmes et Structures (DM2S), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
Subjects: Sterile neutrino, Physics::Instrumentation and Detectors, scintillation counter: liquid, talk: Valencia 2014/07/02, 7. Clean energy, 01 natural sciences, [SPI]Engineering Sciences [physics], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Borexino, gallium, Physics, Oscillation, neutrino: sterile, solar, cerium, chromium, chromium-51, neutrino: geophysics, Neutrino, performance, Nuclear and High Energy Physics, Particle physics, Anomalous oscillations, Cerium-144, Chromium-51, SOX, Sterile neutrinos, anomaly, neutrino/e: beam, Scintillator, cerium-144, MiniBooNE, sterile neutrinos, 0103 physical sciences, 010306 general physics, Neutrino oscillation, 010308 nuclear & particles physics, chromium-51cerium-144, calibration, Gran Sasso, LSND, Anomalous oscillation, neutrino: family, High Energy Physics::Experiment, nuclear reactor, neutrino: oscillation, Anomaly (physics), anomalous oscillations, experimental results, neutrino/e: oscillation
Abstract: The Borexino detector has convincingly shown its outstanding performance in the in the sub-MeV regime through its unprecedented accomplishments in the solar and geo-neutrinos detection, which make it the ideal tool to unambiguously test the long-standing issue of the existence of a sterile neutrino, as suggested by several anomalies: the outputs of the LSND and Miniboone experiments, the results of the source calibration of the two Gallium solar ν experiments, and the recently hinted reactor anomaly. The SOX project will exploit two sources, based on chromium and cerium, which deployed under the experiment will emit two intense beams of ν e (Cr) and ν e ‾ (Ce). Interacting in the active volume of the liquid scintillator, each beam would create a spatial wave pattern in case of oscillation of the ν e (or ν e ‾ ) into the sterile state, which would be the smoking gun proving the existence of the new sterile member of the neutrino family. Otherwise, its absence will allow setting very stringent limit on its existence.
Published: 2016

133. The high precision measurement of the 144Ce activity in the SOX experiment

Author: M Kaiser, Lino Miramonti, A Caminata, O Zaimidoroga, E. Hungerford, M. S. Meyer, G. Korga, S Marcocci, P Mosteiro, C Hagner, F. von Feilitzsch, S Farinon, V. Fischer, M Obolensky, O. Smirnov, A. Razeto, M. Durero, K Fomenko, C Galbiati, M Cribier, E Litvinovich, J. Gaffiot, Paolo Lombardi, M Wurm, M. Vivier, C Veyssière, V. N. Muratova, D. Kryn, M Montuschi, Thierry Lasserre, Matteo Agostini, K Choi, G Bellini, E Unzhakov, N. Rossi, L Perasso, I. S. Drachnev, L Scola, A. V. Derbin, M. Goeger-Neff, R. Tartaglia, H Wang, Jay Burton Benziger, Aldo Romani, T Lachenmaier, P. Cavalcante, N Jonquères, R. Musenich, M. Misiaszek, W Maneschg, L. Di Noto, A. Pocar, K. Althenmüller, N Berton, S. Schönert, D. Bravo Berguño, F. Lombardi, A. Sotnikov, Aldo Ianni, Lothar Oberauer, S. Davini, S. Manecki, J. Thurn, R. Roncin, T. Houdy, G. Testera, T. Lehnert, Gioacchino Ranucci, D Semenov, Andrea Ianni, Matthias Laubenstein, R. Cereseto, G Mention, D DAngelo, Kai Zuber, Marcin Wójcik, Y. Suvorov, M. Skorokhvatov, S. Zavatarelli, Livia Ludhova, V. V. Kobychev, D Bick, A. S. Chepurnov, A Goretti, Marco Pallavicini, S Weinz, F. Gabriele, Denis Korablev, J Link, G. Lukyanchenko, J. Winter, A Etenko, D. Franco, C Ghiano, Marco Giammarchi, G. Zuzel, Z Yokley, J. Maricic, S. Appel, R. B. Vogelaar, L. Papp, C Rossi, B Caccianiga, S. Sukhotin, I. N. Machulin, K Jedrzejczak, Fausto Ortica, M. Gromov, B. Neumair, V.N. Kornoukhov, M Toropova, Alessandra Re, G. Bonfini, Frank Calaprice, Hardy Simgen, E Meroni, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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 Paris Cité (UPCité), SOX, 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), 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), Di Noto, L., Agostini, M., Althenmueller, K., Appel, S., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravo-Berguno, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Cereseto, R., Chepurnov, A., Choi, K., Cribier, M., Dangelo, D., Davini, S., Derbin, A., Drachnev, I., Durero, M., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gaffiot, J., Galbiati, C., Ghiano, C., Giammarchi, M., Goeeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, Th, Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jonqueres, N., Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kornoukhov, V., Kryn, D., Lachenmaier, T., Lasserre, T., Laubenstein, M., Lehnert, T., Link, J., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Maricic, J., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Musenich, R., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, C., Rossi, N., Schoenert, S., Scola, L., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Veyssiere, C., Vivier, M., Unzhakov, E., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., and Zuzel, G.
Subjects: History, Particle physics, Water flow, Physics::Instrumentation and Detectors, tungsten, water, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Particle detector, Education, Physics::Geophysics, thermal, Nuclear physics, Physics and Astronomy (all), alloy, 0103 physical sciences, ddc:530, 010306 general physics, Neutrino oscillation, Nuclear Experiment, background: radioactivity, Borexino, Physics, 010308 nuclear & particles physics, precision measurement, calorimeter: design, Detector, antineutrino, Computer Science Applications, Gran Sasso, cerium, flow, Measuring instrument, High Energy Physics::Experiment, neutrino: oscillation, Neutrino, Lepton
Abstract: International audience; In order to perform a resolutive measurement to clarify the neutrino anomalies and to observe possible short distance neutrino oscillations, the SOX (Short distance neutrino Oscillations with BoreXino) experiment is under construction. In the first phase, a 100 kCi (144)Ce-(144)Pr antineutrino source will be placed under the Borexino detector at the Laboratori Nazionali del Gran Sasso (LNGS), in center of Italy, and the rate measurement of the antineutrino events, observed by the very low radioactive background Borexino detector, will be compared with the high precision (< 1%) activity measurement performed by two calorimeters. The source will be embedded in a 19 mm thick tungsten alloy shield and both the calorimeters have been conceived for measuring the thermal heat absorbed by a water flow. In this report the design of the calorimeters will be described in detail and very preliminary results will be also shown.
Published: 2016

134. The search for sterile neutrinos with SOX-Borexino

Author: Denis Korablev, Matthias Laubenstein, L. Papp, M. D. Skorokhvatov, Michael Wurm, G. Testera, S. V. Sukhotin, Y. Suvorov, A. V. Derbin, Livia Ludhova, O. Smirnov, Fausto Ortica, A. M. Goretti, A. S. Chepurnov, S. Farinon, Cristiano Galbiati, O. Zaimidoroga, N. Berton, L. Scola, E. V. Unzhakov, V. V. Kobychev, Matteo Agostini, S. Marcocci, Thierry Lasserre, E. Meroni, D. A. Semenov, M. Toropova, D. Kryn, I. S. Drachnev, I. N. Machulin, C. Ghiano, Caren Hagner, Z. Yokley, R. B. Vogelaar, M. Göger-Neff, K. Altenmüller, A. Empl, R. Tartaglia, Michele Montuschi, Marco Pallavicini, P. Cavalcante, M. Vivier, Kai Zuber, Marcin Wójcik, D. D'Angelo, Manuel Meyer, B. Neumair, Gioacchino Ranucci, M. Misiaszek, Jay Burton Benziger, G. Korga, K. Fomenko, W. Maneschg, Paolo Lombardi, F. Lombardi, Aldo Ianni, E. Litvinovich, M. Obolensky, A. Razeto, G. Bonfini, G. Mention, N. Rossi, Lothar Oberauer, N. Jonqures, G. Bellini, S. Appel, C. Veyssiere, Tobias Lachenmaier, Marco Giammarchi, S. Davini, R. Musenich, V. Fischer, V. N. Muratova, B. Lehnert, Frank Calaprice, F. von Feilitzsch, A. Pocar, M. Kaiser, Hardy Simgen, A. Caminata, Hongwei Wang, F. Gabriele, M. Gromov, Alessandra Re, T. Houdy, M. Durero, M. Cribier, J. Winter, L. Pagani, G. Lukyanchenko, J. M. Link, D. Franco, Lino Miramonti, G. Zuzel, E. V. Hungerford, B. Caccianiga, A. Sotnikov, J. Gaffiot, L. Perasso, A.V. Etenko, D. Bravo, J. Maricic, S. Schönert, Andrea Ianni, D. Bick, Sandra Zavatarelli, Aldo Romani, L. Di Noto, R. Roncin, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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 Paris Cité (UPCité), Bureau de Conception Calculs et Réalisations (BCCR), Service d'Etudes Mécaniques et Thermiques (SEMT), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Modélisation des Systèmes et Structures (DM2S), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Service des Réacteurs et de Mathématiques Appliquées (SERMA), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction de l'Energie Nucléaire (CEA-DEN), Altenmueller, K., Agostini, M., Appel, S., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., Cribier, M., D'Angelo, D., Davini, S., Derbin, A., di Noto, L., Drachnev, I., Durero, M., Empl, A., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gaffiot, J., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, Th., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jonqures, N., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Lachenmaier, T., Lasserre, T., Laubenstein, M., Lehnert, B., Link, J., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Maneschg, W., Marcocci, S., Maricic, J., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Muratova, V., Musenich, R., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pagani, L., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Roncin, R., Romani, A., Rossi, N., Schoenert, S., Scola, L., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Toropova, M., Unzhakov, E., Veyssiere, C., Vivier, M., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., 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), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
Subjects: Nuclear and High Energy Physics, Particle physics, Sterile neutrino, data acquisition, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], particle physic, 01 natural sciences, sterile neutrinos, Atomic and Molecular Physics, 0103 physical sciences, calorimeter, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], particle physics, 010306 general physics, Neutrino oscillation, Borexino, Astroparticle physics, Physics, insulation, 010308 nuclear & particles physics, shielding, astroparticle physic, semileptonic decay, neutrino: sterile, antineutrino, Atomic and Molecular Physics, and Optics, praseodymium, Gran Sasso, astroparticle physics, cerium, sterile neutrino, neutrino: oscillation, proposed experiment, and Optics, Neutrino, Electron neutrino, signature
Abstract: International audience; The aim of the SOX-Borexino project is to verify or falsify the existence of eV-scale sterile neutrinos. The existence of sterile neutrinos is suspected because of several anomalies, which were observed in previous experiments. A ~3.7 PBq electron antineutrino source made of$^{144}$Ce will be installed below the Borexino detector at LNGS, Italy, to search for short-baseline oscillations of active-to-sterile neutrinos within the detector volume. Source delivery and beginning of data acquisition is planned for end of 2016, preliminary results are expected already in 2017.
Published: 2016

135. Short distance neutrino oscillations with Borexino

Author: L. Papp, M. Cribier, O. Smirnov, Fausto Ortica, Lino Miramonti, Alessandra Re, E. Litvinovich, G. Mention, V. Fischer, Gioacchino Ranucci, N. Rossi, S. Farinon, G. Bellini, R. Tartaglia, I. N. Machulin, Hui Wang, Marco Pallavicini, D. D'Angelo, F. von Feilitzsch, S. Schönert, R. B. Vogelaar, J. Winter, S. V. Sukhotin, M. Vivier, A. Caminata, N. Berton, Anton Empl, F. Gabriele, Y. Suvorov, Cristiano Galbiati, O. Zaimidoroga, Livia Ludhova, D. Franco, Matteo Agostini, A. M. Goretti, A. S. Chepurnov, C. Ghiano, V. N. Muratova, V. V. Kobychev, Caren Hagner, A. Pocar, G. Bonfini, L. Perasso, J. Maricic, Aldo Ianni, W. Maneschg, Kai Zuber, Aldo Romani, Denis Korablev, Frank Calaprice, S. Appel, Hardy Simgen, M. Obolensky, S. Davini, B. Neumair, P. Cavalcante, J. Gaffiot, B. Lehnert, L. Di Noto, Matthias Laubenstein, Michael Meyer, A.V. Etenko, K. Fomenko, M. Misiaszek, M. Göger-Neff, K. Altenmüller, Andrea Ianni, D. Bick, D. Bravo, D. Kryn, Jonathan M. Link, Sandra Zavatarelli, M. D. Skorokhvatov, G. Korga, Michael Wurm, Marcin Wójcik, B. Caccianiga, C. Veyssiere, L. Scola, Tobias Lachenmaier, E. Meroni, Marco Giammarchi, G. Testera, Paolo Lombardi, Michele Montuschi, A. V. Derbin, M. Durero, Lothar Oberauer, Thierry Lasserre, G. Zuzel, E. V. Hungerford, S. Marcocci, A. Sotnikov, Jay Burton Benziger, G. Lukyanchenko, M. Kaiser, F. Lombardi, A. Razeto, R. Musenich, N. Jonquères, M. Gromov, T. Houdy, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: Particle physics, Sterile neutrino, neutrino: solar, Physics::Instrumentation and Detectors, QC1-999, Solar neutrino, scintillation counter: liquid, anomaly, neutrino: beam, 7. Clean energy, 01 natural sciences, Nuclear physics, MiniBooNE, Physics and Astronomy (all), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Neutrino oscillation, Borexino, energy: low, Physics, gallium, 010308 nuclear & particles physics, antineutrino: beam, Detector, High Energy Physics::Phenomenology, talk: Noto 2014/09/30, neutrino: sterile, calibration, neutrino: nuclear reactor, cerium, LSND, radioactivity, High Energy Physics::Experiment, neutrino: family, chromium, neutrino: oscillation, Neutrino, Anomaly (physics), performance, experimental results
Abstract: International audience; The Borexino detector has convincingly shown its outstanding performances in the low energy, sub-MeV regime through its unprecedented accomplishments in the solar and geo-neutrinos detection. These performances make it the ideal tool to accomplish a state-of-the-art experiment able to test unambiguously the long-standing issue of the existence of a sterile neutrino, as suggested by the several anomalous results accumulated over the past two decades, i.e. the outputs of the LSND and Miniboone experiments, the results of the source calibration of the two Gallium solar neutrino experiments, and the recently hinted reactor anomaly. The SOX project will exploit two sources, based on Chromium and Cerium, respectively, which deployed under the experiment, in a location foreseen on purpose at the time of the construction of the detector, will emit two intense beams of neutrinos (Cr) and anti-neutrinos (Ce). Interacting in the active volume of the liquid scintillator, each beam would create an unmistakable spatial wave pattern in case of oscillation of the nu_e (or nu̅_e) into the sterile state: such a pattern would be the smoking gun proving the existence of the new sterile member of the neutrino family. Otherwise, its absence will allow setting a very stringent limit on its existence.
Published: 2016

136. A high precision calorimeter for the SOX experiment

Author: S. Farinon, Matteo Agostini, K. Altenmüller, Marco Pallavicini, A. Caminata, S. Appel, Riccardo Musenich, R. Cereseto, Lothar Oberauer, Birgit Neumair, S. Schönert, L. Papp, Sandra Zavatarelli, G. Testera, and L. Di Noto
Subjects: ICARUS, Physics, Particle physics, Nuclear and High Energy Physics, Calorimetry, eV-scale sterile neutrinos, Instrumentation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Solar neutrino, High Energy Physics::Phenomenology, Solar neutrino problem, 01 natural sciences, Nuclear physics, Neutrino detector, 0103 physical sciences, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, 010306 general physics, Neutrino oscillation, Borexino
Abstract: The SOX (Short distance neutrino Oscillations with BoreXino) experiment is being built to discover or reject eV-scale sterile neutrinos by observing short baseline oscillations of active-to-sterile neutrinos [1] . For this purpose, a 100 kCi 144Ce–144Pr antineutrino generator (CeSOX) will be placed under the BOREXINO detector at the Laboratori Nazionali del Gran Sasso. Thanks to its large size and very low background, BOREXINO is an ideal detector to discover or reject eV-scale sterile neutrinos. To reach the maximal sensitivity, we aim at determining the neutrino flux emitted by the antineutrino generator with a 1 % accuracy. With this goal, TU Munchen and INFN Genova are developing a vacuum calorimeter, which is designed to measure the source-generated heat with high accuracy.
Published: 2016

137. Evaluation of thermal helium beam and line-ratio fast diagnostic on the National Spherical Torus Experiment-Upgrade

Author: P. Scarin, D.P. Stotler, Kevin Tritz, J. M. Muñoz Burgos, Oliver Schmitz, Dan Stutman, Stuart Loch, Matteo Agostini, and Ezekial A Unterberg
Subjects: Electron density, Tokamak, Radial profiles, Tokamak devices, Collisional radiative model, chemistry.chemical_element, 01 natural sciences, Helium, State of the art, 010305 fluids & plasmas, law.invention, National spherical torus experiments, law, Intensity ratio, 0103 physical sciences, Radiative transfer, 010306 general physics, Electron temperature, Physics, Divertor, Scrape-off layer, Condensed Matter Physics, Computational physics, chemistry, Diagnostic systems, Plasma diagnostics, Atomic physics, Beam (structure), Line emissions
Abstract: A 1-D kinetic collisional radiative model with state-of-the-art atomic data is developed and employed to simulate line emission to evaluate the Thermal Helium Beam (THB) diagnostic on NSTX-U. This diagnostic is currently in operation on RFX-mod, and it is proposed to be installed on NSTX-U. The THB system uses the intensity ratios of neutral helium lines 667.8, 706.5, and 728.1 nm to derive electron temperature (eV) and density (cm−3) profiles. The purpose of the present analysis is to evaluate the applications of this diagnostic for determining fast ( ∽4 μs) electron temperature and density radial profiles on the scrape-off layer and edge regions of NSTX-U that are needed in turbulence studies. The diagnostic is limited by the level of detection of the 728.1 nm line, which is the weakest of the three. This study will also aid in future design of a similar 2-D diagnostic system on the divertor.
Published: 2016

138. Boundary plasma response in RFX-mod to 3D magnetic field perturbations

Author: Gianluca Spizzo, Matteo Agostini, N. Vianello, Paolo Scarin, Lorella Carraro, and M. Spolaore
Subjects: THB, Nuclear and High Energy Physics, Toroidal and poloidal, RFX-mod, Materials Science (miscellaneous), Magnetic chaos, Stochastic layers, Electron, 01 natural sciences, 010305 fluids & plasmas, Boundary plasma response, Optics, Physics::Plasma Physics, Electric field, 0103 physical sciences, RFP, 010306 general physics, PWI, RFX, Physics, Toroid, MPs, Reversed field pinch, business.industry, Ambipolar diffusion, Plasma, lcsh:TK9001-9401, Magnetic field, Nuclear Energy and Engineering, lcsh:Nuclear engineering. Atomic power, Atomic physics, business, 3D magnetic field perturbations
Abstract: The edge of the RFX-mod (R=2m, a=0.46m) Reversed Field Pinch device is characterized by weak magnetic chaos affecting ion and electron diffusion. Edge particle transport is strongly influenced by a toroidal asymmetry caused by magnetic islands and an ambipolar radial electric field ensures local neutrality, in a way similar to the stochastic edge of tokamaks when resonant magnetic perturbations (RMPs) are applied. The H? emission and floating potential Vf measured in different poloidal and toroidal positions shows a helical shape of the Plasma Wall Interaction, fitting the spatial periodicity of the innermost resonant tearing mode (m/n=1/7) [1]. However, detailed measurements, along the poloidal (parallel) direction, of the electron density and temperature with the Thermal Helium Beam, and of the floating potential Vf with electrostatic probes, show that the response of the edge plasma depends on the poloidal angle, in a more complicated way than a pure 1/7 harmonic. In particular, multiple poloidal harmonics can be recognized in the measurements. The results are robust, because data analysis has been performed with different techniques: in terms of correlations between Vf signals and the corresponding local flux-surface displacement, by the conditional average technique applied at Vf signals, and finally also in terms of a travelling helical angle frame as reference of the measurements. The interpretation of the results is not obvious, but it highlights the fact that the correlation between magnetic islands and kinetic properties of the edge plasma is not a simple one-to-one causal relationship, as it is often assumed in RMP studies in tokamaks.
Published: 2016

139. A calorimeter for the precise determination of the activity of the 144Ce-144Pr anti-neutrino source in the SOX experiment

Author: A. Trantel, G. Testera, Paolo Saracco, Matteo Agostini, H. Hess, M. Nieslony, J. Martyn, Lothar Oberauer, Tobias Lachenmaier, Marco Pallavicini, R. Cereseto, Riccardo Musenich, S. Appel, K. Altenmüller, L. Papp, S. Weinz, Stefania Farinon, A. Caminata, S. Rottenanger, L. Di Noto, C. Rossi, Birgit Neumair, Michael Wurm, Luigi Cappelli, S. Schönert, Sandra Zavatarelli, and M. Gschwender
Subjects: Physics, Radiation monitoring, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, 01 natural sciences, Particle detector, Calorimeter, Nuclear physics, Calorimeters, Neutrino detector, Mockup, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Instrumentation, Mathematical Physics, 010306 general physics, Neutrino oscillation, Borexino
Abstract: We describe the design and the performance of a high precision thermal calorimeter, whose purpose was the measurement of the total activity of the 144Ce-144Pr anti-neutrino source of the SOX (Short distance neutrino Oscillation with BoreXino) experiment. SOX aimed at the search for eV-scale sterile neutrinos by means of the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy and of a very powerful artificial anti-neutrino source located at 8.51 m from the detector center. In order to obtain the required sensitivity, the activity of the source (approximately 150 kCi) had to be known at 1% precision. In this work we report the design of the experimental apparatus and the results of calibration measurements performed with an electrical mockup of the source. We show that the calorimeter sensitivity exceeds design goals, reaching a precision of a few %.
Published: 2018

140. The Role of Extracellular Vesicles in Bone Metastasis

Author: Michela Rossi, Matteo D'Agostini, Giulia Battafarano, and Andrea Del Fattore
Subjects: 0301 basic medicine, Bone Neoplasms, Review, bone metastasis, exosomes, extracellular vesicles, Bone Marrow Aplasia, Extracellular vesicles, Catalysis, Bone remodeling, Metastasis, lcsh:Chemistry, Inorganic Chemistry, 03 medical and health sciences, Bone cell, medicine, Animals, Humans, Physical and Theoretical Chemistry, lcsh:QH301-705.5, Molecular Biology, Spectroscopy, business.industry, Organic Chemistry, Bone metastasis, General Medicine, medicine.disease, Microvesicles, Computer Science Applications, Crosstalk (biology), 030104 developmental biology, lcsh:Biology (General), lcsh:QD1-999, Cancer research, business
Abstract: Multiple types of cancer have the specific ability to home to the bone microenvironment and cause metastatic lesions. Despite being the focus of intense investigation, the molecular and cellular mechanisms that regulate the metastasis of disseminated tumor cells still remain largely unknown. Bone metastases severely impact quality of life since they are associated with pain, fractures, and bone marrow aplasia. In this review, we will summarize the recent discoveries on the role of extracellular vesicles (EV) in the regulation of bone remodeling activity and bone metastasis occurrence. Indeed, it was shown that extracellular vesicles, including exosomes and microvesicles, released from tumor cells can modify the bone microenvironment, allowing the formation of osteolytic, osteosclerotic, and mixed mestastases. In turn, bone-derived EV can stimulate the proliferation of tumor cells. The inhibition of EV-mediated crosstalk between cancer and bone cells could represent a new therapeutic target for bone metastasis.
Published: 2018

141. GERDA results and the future perspectives for the neutrinoless double beta decay search using 76Ge

Author: A. Domula, Allen Caldwell, K. von Sturm, J. Janicskó Csáthy, C. Macolino, A. V. Veresnikova, V.B. Brudanin, Hardy Simgen, A. Chernogorov, V. N. Kornoukhov, K. Pelczar, Christian Bauer, Oliver Schulz, Alberto Pullia, P. Moseev, Luciano Pandola, I. R. Barabanov, I. Zhitnikov, E. Doroshkevich, A. Lubashevskiy, A. A. Klimenko, N. Rumyantseva, Guillaume Lutter, R. Mingazheva, A. M. Bakalyarov, A. Garfagnini, I. V. Kirpichnikov, W. Maneschg, E. A. Yanovich, O.I. Kochetov, S. Hemmer, Matthias Laubenstein, R. Hiller, A. M. Gangapshev, J. Schreiner, Stefano Riboldi, M. Balata, V. Wagner, Alessandro Bettini, E. V. Demidova, B. Schneider, E. Shevchik, R. Kneißl, M. Misiaszek, A. A. Vasenko, V. Egorov, V. I. Gurentsov, L. Vanhoefer, T. Bode, M. Heisel, A. Kirsch, Marcin Wójcik, P. Grabmayr, Y. Kermaïdic, S. Belogurov, V. D'Andrea, M. Miloradovic, L. Pertoldi, Bayarto Lubsandorzhiev, Ivano Lippi, A. Wegmann, L. V. Inzhechik, Igor Nemchenok, V. V. Kazalov, C. Wiesinger, M. Shirchenko, Bela Majorovits, Mikael Hult, K. N. Gusev, M. Giordano, Cinzia Sada, A. Lazzaro, D. Borowicz, R. Brugnera, Stefan Schönert, V. V. Kuzminov, Matteo Agostini, Laura Baudis, A.-K. Schütz, A. Zschocke, N. Di Marco, J. Jochum, Manfred Lindner, J. Biernat, O. Selivanenko, B. Schwingenheuer, E. Bellotti, C. Ransom, L. B. Bezrukov, Werner Hofmann, S. V. Zhukov, Thomas Kihm, M. Junker, K. T. Knöpfle, T. Comellato, G. Zuzel, J. Hakenmüller, K. Panas, Luca Stanco, F. Salamida, T. Wester, A.A. Smolnikov, C. Cattadori, Anna Julia Zsigmond, Kai Zuber, and D. Zinatulina
Subjects: Semileptonic decay, Nuclear and High Energy Physics, MAJORONS, Majorana mass, chemistry.chemical_element, Germanium, 01 natural sciences, Nuclear physics, Atomic and Molecular Physics, Double beta decay, 0103 physical sciences, Neutrinoless double beta decay, lepton number violation, Atomic and Molecular Physics, and Optics, Astronomy and Astrophysics, 010306 general physics, Diode, Physics, 010308 nuclear & particles physics, Detector, Beta decay, Semiconductor detector, chemistry, Liquid argon, and Optics
Abstract: The GERmanium Detector Array (GERDA) is a low background experiment at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN designed to search for the rare neutrinoless double beta decay ([Formula: see text]) of [Formula: see text]Ge. In the first phase (Phase I) of the experiment, high purity germanium diodes were operated in a “bare” mode and immersed in liquid argon. The overall background level of [Formula: see text] was a factor of ten better than those of its predecessors. No signal was found and a lower limit was set on the half-life for the [Formula: see text] decay of [Formula: see text]Ge [Formula: see text] yr (90% CL), while the corresponding median sensitivity was [Formula: see text] yr (90% CL). A second phase (Phase II) started at the end of 2015 after a major upgrade. Thanks to the increased detector mass and performance of the enriched germanium diodes and due to the introduction of liquid argon instrumentation techniques, it was possible to reduce the background down to [Formula: see text]. After analyzing 23.2 kg[Formula: see text]⋅[Formula: see text]yr of these new data no signal was seen. Combining these with the data from Phase I a stronger half-life limit of the [Formula: see text]Ge [Formula: see text] decay was obtained: [Formula: see text] yr (90% CL), reaching a sensitivity of [Formula: see text] yr (90% CL). Phase II will continue for the collection of an exposure of 100 kg[Formula: see text]yr. If no signal is found by then the GERDA sensitivity will have reached [Formula: see text] yr for setting a 90% CL. limit. After the end of GERDA Phase II, the flagship experiment for the search of [Formula: see text] decay of [Formula: see text]Ge will be LEGEND. LEGEND experiment is foreseen to deploy up to 1-ton of [Formula: see text]Ge. After ten years of data taking, it will reach a sensitivity beyond 10[Formula: see text] yr, and hence fully cover the inverted hierarchy region.
Published: 2018

142. Edge turbulence scaling in RFX-mod as measured using GPI diagnostic

Author: Fabio Sattin, Gianluigi Serianni, Nicola Vianello, Paolo Scarin, Matteo Agostini, Roberto Cavazzana, and M. Spolaore
Subjects: Nuclear and High Energy Physics, Condensed matter physics, Reversed field pinch, Plane (geometry), Turbulence, Chemistry, Plasma, SCRAPE-OFF LAYER, ALCATOR C-MOD, Atomic packing factor, Magnetic field, PARTICLE-TRANSPORT, Nuclear Energy and Engineering, COHERENT STRUCTURES, Physics::Plasma Physics, TOKAMAK, General Materials Science, Atomic physics, Phase velocity, Scaling
Abstract: The nature of plasma edge turbulence has been studied in the Reversed Field Pinch (RFP) RFX-mod, making use of a Gas Puffing Imaging (GPI) diagnostic, with high time (2 MHz) and space (5 mm) resolution. The edge turbulence has been characterized in terms of toroidal phase velocity of fluctuations, v(phi), of the. width of emission structures, 2 sigma, and of their linear density in the toroidal direction. The packing fraction f(p) of intermittent structures has been estimated as the fraction of occupied area in a plane perpendicular to the magnetic field. The behaviors of v(phi),f(p), and 2 sigma are reported as functions of the density normalized to its Greenwald value, n/n(G). A comparison at different plasma regimes of an effective diffusion coefficient D(p) due to the plasma trapped in coherent structures has been discussed. A decreasing trend of D(p)with n/n(G) values has been guessed. (C) 2009 Elsevier B.V. All rights reserved.
Published: 2009

143. Application of 2D tomographic imaging techniques to edge turbulence in RFX-mod

Author: Paolo Scarin, Roberto Cavazzana, Matteo Agostini, and Gianluigi Serianni
Subjects: 52.35.Py, Physics, 52.58.Lq, Tomographic reconstruction, Reversed field pinch, business.industry, Turbulence, Line integral, Condensed Matter Physics, 52.70.-m, Magnetic field, symbols.namesake, Fourier transform, Optics, Nuclear Energy and Engineering, symbols, 52.25.Gj, Light emission, business, Fourier series, 52.35.Ra
Abstract: In the reversed field pinch experiment RFX-mod a gas puffing imaging diagnostic is used to investigate the turbulence of the edge plasma. The system consists of a gas puffing nozzle and 32 optical channels to measure the He I (668 nm) line emission. The lines of sight are arranged into three fans intersecting each other in an area normal to the main magnetic field. The diagnostic system provides an analogue bandwidth of 2 MHz and all channels are simultaneously sampled at 10 Msamples s-1 for the whole discharge duration (350 ms). Different inversion techniques have been applied to the data in order to obtain a 2D tomographic reconstruction of the light emission pattern from the line integrals. Comparison shows that the most precise method is based on the 2D spatial Fourier expansion, applying the singular value decomposition technique with a suitable regularization method to avoid artefacts. The high time resolution allows one to obtain a 2D image every 100 ns. Emission structures ('blobs') that move along the E × B flow emerge from the background turbulence and they are characterized by computing energy and phase of the Fourier modes.
Published: 2007

144. Active MHD control at high currents in RFX-mod

Author: Emilio Martines, Lorella Carraro, A. Pizzimenti, D. Terranova, Paolo Franz, M. Brombin, P. Zaccaria, Rita Lorenzini, V. Antoni, E. Spada, Mario Cavinato, Roberto Cavazzana, S. Cappello, G. Rostagni, F. Milani, Paolo Zanca, L. Apolloni, N. Vianello, Vanni Toigo, L. Zanotto, C. Taliercio, N. Pomaro, Gianluca Spizzo, Giuseppe Zollino, Giuseppe Chitarin, C. Taccon, Barbara Zaniol, Federica Bonomo, A. Murari, A. De Lorenzi, Alessandra Canton, Matteo Zuin, Fulvio Auriemma, L. Garzotti, S. Ortolani, R. Paccagnella, S. C. Guo, Anton Soppelsa, Maria Ester Puiatti, Lionello Marrelli, Tommaso Bolzonella, Gabriele Manduchi, F. Sattin, S. Martini, Alessandro Fassina, G. Malesani, Luca Grando, P. Innocente, Giuseppe Marchiori, P. Piovesan, C. Alessi, D. F. Escande, Roberto Pasqualotto, L. De Pasqual, D. Bonfiglio, M. Valisa, Enrico Zilli, A. Cravotta, Paolo Bettini, A. Masiello, Matteo Agostini, R. Piovan, Diego Marcuzzi, G. Gadani, Piergiorgio Sonato, Alberto Alfier, L. Novello, Simone Peruzzo, Elena Gaio, S. Dal Bello, M. Spolaore, Piero Martin, E. Gazza, Francesco Gnesotto, Adriano Luchetta, Leonardo Giudicotti, P. Scarin, A. Buffa, Marco Gobbin, M. Moresco, G. Serianni, Martini, S, Agostini, M, Alessi, C, Alfier, A, Antoni, V, Apolloni, L, Auriemma, F, Bettini, P, Bolzonella, T, Bonfiglio, D, Bonomo, F, Brombin, M, Buffa, A, Canton, A, Cappello, S, Carraro, L, Cavazzana, R, Cavinato, M, Chitarin, G, Cravotta, A, Dal Bello, S, De Lorenzi, A, De Pasqual, L, Escande, D, Fassina, A, Franz, P, Gadani, G, Gaio, E, Garzotti, L, Gazza, E, Giudicotti, L, Gnesotto, F, Gobbin, M, Grando, L, Guo, S, Innocente, P, Lorenzini, R, Luchetta, A, Malesani, G, Manduchi, G, Marchiori, G, Marcuzzi, D, Marrelli, L, Martin, P, Martines, E, Masiello, A, Milani, F, Moresco, M, Murari, A, Novello, L, Ortolani, S, Paccagnella, R, Pasqualotto, R, Peruzzo, S, Piovan, R, Piovesan, P, Pizzimenti, A, Pomaro, N, Puiatti, M, Rostagni, G, Sattin, F, Scarin, P, Serianni, G, Sonato, P, Spada, E, Soppelsa, A, Spizzo, G, Spolaore, M, Taccon, C, Taliercio, C, Terranova, D, Toigo, V, Valisa, M, Vianello, N, Zaccaria, P, Zanca, P, Zaniol, B, Zanotto, L, Zilli, E, Zollino, G, and Zuin, M
Subjects: Physics, Nuclear and High Energy Physics, RFX-mod, Toroid, business.industry, Pulse duration, reversed field pinch, Plasma, Mechanics, Condensed Matter Physics, MHD control, Amplitude, Optics, Physics::Plasma Physics, RFP, Pinch, Magnetohydrodynamics, business, Voltage, Dynamo
Abstract: The modified RFX is a very flexible device used for a variety of control schemes for MHD instabilities and for advanced reverse field pinch scenarios. Relative to the previous machine, RFX-mod has a thin Cu shell with vertical field penetration time τS, lowered from 450 to 50 ms and shell/plasma proximity from b/a ≤ 1.24-1.1. Toroidal equilibrium is feedback-controlled and new power supplies provide better Bφ control. Newly designed graphite tiles protect the vessel from localized power deposition. A mesh of 192 external saddle coils, supervised by a digital feedback system, controls radial fields due to field errors and MHD modes. The paper presents an overview of the very encouraging results obtained using both new and 'standard' advanced operational modes in the current range 0.3-1 MA. A dramatic improvement of plasma performance was obtained by using the saddle coils to cancel all the radial field components, an operation mode dubbed virtual shell (VS). The toroidal voltage was lowered by more than 25% and the pulse length was tripled, up to 7 times the τS. Steady-state RFP pulses are now limited only by the applied volt-seconds. The improved magnetic boundary also has an effect on the tearing modes underlying the sustainment of the RFP, whose core amplitude is more than halved. The VS combined with new schemes for the active rotation of the MHD dynamo modes has allowed us to obtain reliable and well-controlled long RFP pulses in the MA current range. This results in a 100% increase in the particle and energy confinement time relative to the previous experiment and opens the possibility of exploring the machine performance in the 2 MA design range. © 2007 IAEA.
Published: 2007

145. Investigation of plasma edge turbulence using a gas-puff imaging system in the reversed-field pinch device TPE-RX

Author: Nicola Vianello, Matteo Agostini, Hajime Sakakita, Y. Hirano, Paolo Scarin, Gianluigi Serianni, Yasuyuki Yagi, Haruhisa Koguchi, Roberto Cavazzana, and Satoru Kiyama
Subjects: Physics, Thermonuclear fusion, Reversed field pinch, Turbulence, business.industry, Plasma parameters, 52.55.Lf, Plasma, Condensed Matter Physics, 52.70.-m, 52.40.Hf, Optics, Nuclear Energy and Engineering, Heat flux, Physics::Plasma Physics, Temporal resolution, Pinch, 52.25.Gj, business, 52.35.Ra
Abstract: An investigation of the edge region in a large reversed-field pinch (RFP) device has been undertaken for the first time using a high time resolution gas-puff imaging (GPI) system, applied to the TPE-RX experiment. The GPI diagnostic is aimed at the investigation of turbulence in the edge region under the severe heat flux conditions of thermonuclear fusion-grade plasmas, where conventional electrostatic probes cannot be used. To compare the data obtained by the GPI during low power experiments, a retractable array of electrostatic probes has been added. The whole diagnostic system provided high quality measurements of fluctuations with fine spatial and temporal resolution, as well as radial profiles of relevant plasma parameters. The measurements confirm several important properties of plasma edge already found in other experiments, like the presence of a strong ExB shear layer and the 'intermittent' behaviour of the measured quantities, which display non-Gaussian fluctuation spikes at different time scales. Along with the conventional power spectra and correlation analyses, the application of continuous wavelet transform techniques to GPI data allowed a detailed description of the spatial structure and of the propagation of these localized 'intermittent events'.
Published: 2007

146. The $^{144}$Ce source for SOX

Author: A. Pocar, O. Smirnov, Marcin Wójcik, A. Caminata, Matthias Laubenstein, E. V. Unzhakov, D. Kryn, Aldo Ianni, T. Lasserre, S. Appel, L. Papp, M. D. Skorokhvatov, Michael Wurm, M. Vivier, E. Meroni, K. Jedrzejczak, Fausto Ortica, Z. Yokley, A. V. Derbin, J. Thurn, B. Caccianiga, D. A. Semenov, S. Farinon, M. Obolensky, B. Lehnert, L. Scola, C. Veyssiere, Kai Zuber, K. Choi, N. Jonqueres, M. Gromov, Lothar Oberauer, S. Weinz, Tobias Lachenmaier, Marco Giammarchi, Alessandra Re, T. Houdy, S. Manecki, G. Testera, Cristiano Galbiati, J. Maricic, E. Litvinovich, G. Mention, N. Rossi, Jay Burton Benziger, I. N. Machulin, L. Perasso, N. Berton, Marco Pallavicini, D. D'Angelo, V. Fischer, G. Bonfini, Denis Korablev, C. Ghiano, Matteo Agostini, F. Lombardi, A. Razeto, Frank Calaprice, Suvorov, M. Cribier, Hardy Simgen, M. Kaiser, M. Goeger-Neff, R. B. Vogelaar, S. Davini, I. S. Drachnev, J. Winter, B. Neumair, Livia Ludhova, G. Korga, D. Franco, A. M. Goretti, A. S. Chepurnov, M. S. Meyer, K. Fomenko, G. Lukyanchenko, M. Durero, J. M. Link, R. Tartaglia, Paolo Lombardi, S. V. Sukhotin, F. von Feilitzsch, Lino Miramonti, O. Zaimidoroga, H. Wang, Aldo Romani, L. Di Noto, W. Maneschg, V. V. Kobychev, Michele Montuschi, G. Bellini, Caren Hagner, R. Roncin, P. Cavalcante, M. Misiaszek, Kornoukhov, S. Schönert, A.V. Etenko, D. Bravo, Andrea Ianni, D. Bick, Sandra Zavatarelli, Gioacchino Ranucci, J. Gaffiot, E. V. Hungerford, A. Sotnikov, F. Gabriele, V. N. Muratova, R. Musenich, G. Zuzel, S. Marcocci, M. Toropova, K. Altenmüller, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Borexino, 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), 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), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: History, Sterile neutrino, Particle physics, energy: decay, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], Scintillator, 01 natural sciences, 7. Clean energy, Education, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, ddc:530, 010306 general physics, Neutrino oscillation, particle source, Borexino, Physics, lifetime, nucleus, Secular equilibrium, neutrino: sterile, antineutrino, sensitivity, Spent nuclear fuel, Computer Science Applications, Gran Sasso, cerium, Decay energy, radioactivity, neutrino: oscillation, production, Neutrino
Abstract: International audience; The SOX (Short distance neutrino Oscillations with BoreXino) project aims at testing the light sterile neutrino hypothesis. To do so, two artificials sources of antineutrinos and neutrinos respectively will be consecutively deployed at the Laboratori Nazionali del Gran Sasso (LNGS) in close vicinity to Borexino, a large liquid scintillator detector. This document reports on the source production and transportation. The source should exhibit a long lifetime and a high decay energy, a requirement fullfilled by the (144)Ce-(144)Pr pair at secular equilibrium. It will be produced at FSUE “Mayak” PA using spent nuclear fuel. It will then be shielded and packed according to international regulation and shipped to LNGS across Europe. Knowledge of the Cerium antineutrino generator (CeANG) parameters is crucial for SOX as it can strongly impact the experiment sensitivity. Several apparatuses are being used or designed to characterize CeANG activity, radioactive emission and content. An overview of the measurements performed so far is presented here.
Published: 2015

147. Measurement of Solar pp-neutrino flux with Borexino: results and implications

Author: Aldo Ianni, A.V. Etenko, P. J. Mosteiro, Michele Montuschi, D. Bravo, Y. Suvorov, Livia Ludhova, A. M. Goretti, A. S. Chepurnov, I. S. Drachnev, Denis Korablev, M. Obolensky, E. V. Unzhakov, D. D'Angelo, Marco Giammarchi, G. Testera, S. Appel, B. Lehnert, D. Kryn, Jay Burton Benziger, R. B. Vogelaar, Z. Yokley, S. Weinz, B. Caccianiga, F. Lombardi, Lino Miramonti, Matteo Agostini, M. S. Meyer, G. Lukyanchenko, Kai Zuber, Alessandra Re, Marcin Wójcik, E. Litvinovich, N. Rossi, A. Razeto, M. Goeger-Neff, Paolo Lombardi, S. Davini, C. Ghiano, Caren Hagner, Cristiano Galbiati, J. Winter, G. Bellini, K. Jedrzejczak, Lothar Oberauer, D. Franco, B. Neumair, G. Korga, K. Fomenko, P. Cavalcante, A. Caminata, Marco Pallavicini, F. Gabriele, S. V. Sukhotin, Matthias Laubenstein, L. Papp, O. Yu. Smirnov, D. A. Semenov, L. Perasso, A. Vishneva, M. Misiaszek, M. Kaiser, O. Zaimidoroga, H. Wang, O Machulin, A. Pocar, V. V. Kobychev, Aldo Romani, G. Bonfini, Fausto Ortica, Frank Calaprice, E. Meroni, S. Manecki, L. Di Noto, V. N. Muratova, Hardy Simgen, F. von Feilitzsch, J. Thurn, R. Roncin, A. V. Derbin, Gioacchino Ranucci, S. Marcocci, M. Toropova, S. Schönert, Andrea Ianni, D. Bick, Sandra Zavatarelli, M. Gromov, E. V. Hungerford, A. Sotnikov, G. Zuzel, R. Tartaglia, W. Maneschg, M. D. Skorokhvatov, Michael Wurm, 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), Borexino, 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), Smirnov, O. Yu, Agostini, M., Appel, S., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Etenko, A., Fomenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Simgen, H., Skorokhvatov, M., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: model: solar, History, neutrino: solar, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, luminosity: solar, Solar luminosity, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, neutrino: flux, Education, Luminosity, Nuclear physics, Physics and Astronomy (all), SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Astrophysics::Solar and Stellar Astrophysics, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, DETECTOR, Borexino, MSW effect, Physics, Standard solar model, Solar energetic particles, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, photon, Astronomy, Solar neutrino problem, stability, oscillation, Computer Science Applications, p p, 13. Climate action, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics, Neutrino, experimental results
Abstract: International audience; Measurement of the Solar pp-neutrino flux completed the measurement of Solar neutrino fluxes from the pp-chain of reactions in Borexino experiment. The result is in agreement with the prediction of the Standard Solar Model and the MSW/LMA oscillation scenario. A comparison of the total neutrino flux from the Sun with Solar luminosity in photons provides a test of the stability of the Sun on the 10(5) years time scale, and sets a strong limit on the power production by the unknown energy sources in the Sun.
Published: 2015

148. CNO and pep solar neutrino measurements and perspectives in Borexino

Author: Denis Korablev, G. Bellini, A. Pocar, A. Vishneva, M. D. Skorokhvatov, Michael Wurm, Matthias Laubenstein, D. A. Semenov, O. Smirnov, E. V. Hungerford, Alessandra Re, Y. Suvorov, M. Kaiser, Cristiano Galbiati, Livia Ludhova, J. Thurn, A. Sotnikov, A. M. Goretti, A. S. Chepurnov, R. Roncin, Andrea Ianni, D. Bick, Sandra Zavatarelli, E. V. Unzhakov, L. Perasso, S. Manecki, B. Lehnert, Aldo Ianni, R. Tartaglia, Matteo Agostini, A.V. Etenko, D. Bravo, Jay Burton Benziger, F. Lombardi, Kai Zuber, S. Appel, V. N. Muratova, A. Razeto, W. Maneschg, E. Meroni, C. Ghiano, S. Weinz, G. Testera, Caren Hagner, D. Kryn, M. S. Meyer, Z. Yokley, Lino Miramonti, G. Lukyanchenko, Marcin Wójcik, I. S. Drachnev, P. J. Mosteiro, Michele Montuschi, P. Cavalcante, G. Zuzel, A. V. Derbin, R. B. Vogelaar, M. Misiaszek, Gioacchino Ranucci, M. Gromov, Lothar Oberauer, K. Jedrzejczak, S. Schönert, Marco Giammarchi, Paolo Lombardi, E. Litvinovich, N. Rossi, Aldo Romani, L. Di Noto, M. Obolensky, S. Davini, B. Caccianiga, I. N. Machulin, S. Marcocci, M. Toropova, A. Caminata, Marco Pallavicini, D. D'Angelo, F. Gabriele, S. V. Sukhotin, O. Zaimidoroga, H. Wang, V. V. Kobychev, G. Bonfini, Frank Calaprice, Hardy Simgen, B. Neumair, G. Korga, K. Fomenko, F. von Feilitzsch, L. Papp, Fausto Ortica, M. Goeger-Neff, J. Winter, D. Franco, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Borexino, Davini, S., Agostini, M., Appel, S., Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., D'Angelo, D., Derbin, A., Di Noto, L., Drachnev, I., Etenko, A., Fomenko, K., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jedrzejczak, K., Kaiser, M., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Laubenstein, M., Lehnert, B., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Unzhakov, E., Vishneva, A., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: model: solar, History, neutrino: solar, Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, 7. Clean energy, 01 natural sciences, Education, Nuclear physics, Physics and Astronomy (all), talk: Moscow 2015/10/05, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Astrophysics::Solar and Stellar Astrophysics, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Neutrino oscillation, Borexino, MSW effect, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Solar neutrino problem, Computer Science Applications, Massless particle, Neutrino detector, 13. Climate action, High Energy Physics::Experiment, neutrino: oscillation, Neutrino, Lepton, experimental results
Abstract: International audience; The detection of neutrinos emitted in the CNO reactions in the Sun is one of the ambitious goals of Borexino Phase-II. A measurement of CNO neutrinos would be a milestone in astrophysics, and would allow to solve serious issues in current solar models. A precise measurement of the rate of neutrinos from the pep reaction would allow to investigate neutrino oscillations in the MSW transition region. The pep and CNO solar neutrino physics, the measurement in Borexino Phase-I and the perspectives for the new phase are reviewed in this proceeding.
Published: 2015

149. SOX: search for short baseline neutrino oscillations with Borexino

Author: G. Lukyanchenko, M. Cribier, P. J. Mosteiro, N. Berton, Michele Montuschi, C. Ghiano, Caren Hagner, G. Bellini, Cristiano Galbiati, O. Smirnov, Matteo Agostini, S. Schönert, A. Caminata, D. A. Semenov, F. von Feilitzsch, G. Bonfini, Z. Yokley, J. Thurn, R. Roncin, E. V. Unzhakov, P. Cavalcante, Marco Pallavicini, F. Gabriele, R. B. Vogelaar, E. Litvinovich, G. Mention, M. Misiaszek, Andrea Ianni, D. Bick, Sandra Zavatarelli, Frank Calaprice, Jay Burton Benziger, A. V. Derbin, S. Farinon, Lothar Oberauer, N. Rossi, Matthias Laubenstein, Lino Miramonti, G. Testera, C. Veyssiere, Tobias Lachenmaier, Marco Giammarchi, Aldo Ianni, A. Pocar, Denis Korablev, K. Altenmüller, V. N. Muratova, J. Maricic, S. Appel, E. Meroni, M. D. Skorokhvatov, M. Kaiser, B. Neumair, V.N. Kornoukhov, Michael Wurm, G. Korga, K. Fomenko, L. Papp, Marcin Wójcik, Y. Suvorov, B. Caccianiga, Livia Ludhova, A. M. Goretti, A. S. Chepurnov, Alessandra Re, Aldo Romani, Fausto Ortica, L. Di Noto, I. N. Machulin, M. Durero, M. Vivier, S. Manecki, S. Marcocci, D. D'Angelo, M. Toropova, Thierry Lasserre, R. Tartaglia, W. Maneschg, K. Jedrzejczak, N Jonquàres, B. Lehnert, S. Weinz, Gioacchino Ranucci, D. Kryn, S. Davini, A.V. Etenko, D. Bravo, L. Perasso, M. Goeger-Neff, J. Winter, D. Franco, F. Lombardi, A. Razeto, E. V. Hungerford, V. Fischer, A. Sotnikov, I. S. Drachnev, Kai Zuber, G. Zuzel, R. Musenich, M. Gromov, T. Houdy, K. Choi, J. M. Link, M. S. Meyer, Paolo Lombardi, J Gaffliot, S. V. Sukhotin, L. Scola, O. Zaimidoroga, H. Wang, V. V. Kobychev, M. Obolensky, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Borexino, Vivier, M., Agostini, M., Altenmueller, K., Appel, S., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravo, D., Caccianiga, B., Calaprice, F., Caminata, A., Cavalcante, P., Chepurnov, A., Choi, K., Cribier, M., D'Angelo, D., Davini, S., Derbin, A., Di Noto, L., Drachnev, I., Durero, M., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gafflot, J., Galbiati, C., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Gromov, M., Hagner, C., Houdy, T., Hungerford, E., Ianni, Aldo, Ianni, Andrea, Jonqueres, N., Jedrzejczak, K., Kaisers, M., Kobychev, V., Korablev, D., Korga, G., Kornoukhov, V., Kryn, D., Lachenmaier, T., Lasserre, T., Laubenstein, M., Lehnert, B., Link, J., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Maricic, J., Mention, G., Meroni, E., Meyers, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Muratova, V., Musenich, R., Neumair, B., Oberauer, L., Obolensky, M., Ortica, F., Pallavicini, M., Papp, L., Perasso, L., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Roncin, R., Rossi, N., Schoenert, S., Scola, L., Semenov, D., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Thurn, J., Toropova, M., Veyssiere, C., Unzhakov, E., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Weinz, S., Winter, J., Wojcik, M., Wurm, M., Yokley, Z., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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), Observatoire de Paris, and 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)
Subjects: History, Particle physics, Sterile neutrino, chromium: nuclide, Physics::Instrumentation and Detectors, Solar neutrino, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Education, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Neutrino oscillation, Borexino, activity report, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, neutrino: particle source, Solar neutrino problem, neutrino: sterile, sensitivity, Computer Science Applications, Neutrino detector, 13. Climate action, cerium: nuclide, Measurements of neutrino speed, High Energy Physics::Experiment, neutrino: oscillation, Neutrino, antineutrino: particle source
Abstract: International audience; The Borexino detector has convincingly shown its outstanding performances in the low energy regime through its accomplishments in the observation and study of the solar and geo neutrinos. It is then an ideal tool to perform a state of the art source-based experiment for testing the longstanding hypothesis of a fourth sterile neutrino with ~ eV(2) mass, as suggested by several anomalies accumulated over the past three decades in source, reactor, and accelerator-based experiments. The SOX project aims at successively deploying two intense radioactive sources, made of Cerium (antineutrino) and Chromium (neutrino), respectively, in a dedicated pit located beneath the detector. The existence of such an ~ eV(2) sterile neutrino would then show up as an unambiguous spatial and energy distortion in the count rate of neutrinos interacting within the active detector volume. This article reports on the latest developments about the first phase of the SOX experiment, namely CeSOX, and gives a realistic projection of CeSOX sensitivity to light sterile neutrinos in a simple (3+1) model.
Published: 2015

150. Results on $$\beta \beta $$ β β decay with emission of two neutrinos or Majorons in $$^{76}$$ 76 Ge from GERDA Phase I

Author: M. Shirchenko, I. V. Kirpichnikov, C. A. Ur, E. V. Demidova, N. Barros, Oliver Schulz, V. Egorov, E. Doroshkevich, Alberto Pullia, O. Fedorova, A. V. Veresnikova, A. Chernogorov, K. N. Gusev, Alessandro Bettini, Allen Caldwell, J. Janicskó Csáthy, R. Falkenstein, A. Kirsch, A. Garfagnini, Stefano Riboldi, D. Borowicz, N. Frodyma, S. Belogurov, E. Medinaceli, D. R. Zinatulina, M. Misiaszek, A. Domula, M. Balata, O.I. Kochetov, Stefan Schönert, D. Budjáš, C. Macolino, B. Lehnert, A. Wegmann, I. Zhitnikov, Igor Nemchenok, A. Hegai, P. Grabmayr, Cinzia Sada, Thomas Kihm, C. Schmitt, Matthias Laubenstein, Ivano Lippi, P. Zavarise, V.B. Brudanin, Hardy Simgen, Giovanni Benato, I. R. Barabanov, L. Vanhoefer, S. V. Zhukov, L. B. Bezrukov, M. Junker, V. Wagner, K. Panas, M. M. Wojcik, S. T. Belyaev, V. I. Gurentsov, Bela Majorovits, T. Bode, V. N. Kornoukhov, K. Pelczar, K. von Sturm, K. Freund, Luca Stanco, A. A. Vasenko, B. Schwingenheuer, Mikael Hult, A. M. Gangapshev, N. Becerici-Schmidt, M. Heisel, Laura Baudis, H. Wilsenach, S. Hemmer, M. Stepaniuk, Guillaume Lutter, A. M. Bakalyarov, M. Salathe, Manfred Lindner, H. Y. Liao, Christian Bauer, J. Schreiner, E. Bellotti, K. T. Knöpfle, A. Lubashevskiy, R. Brugnera, V. V. Kuzminov, Bayarto Lubsandorzhiev, Matteo Agostini, J. Jochum, P. Moseev, Luciano Pandola, A. A. Klimenko, T. Wester, N. Rumyantseva, A.A. Smolnikov, G. Zuzel, C. Cattadori, Kai Zuber, V. V. Kazalov, G. Heusser, Werner Hofmann, V. I. Lebedev, D. Palioselitis, M. Allardt, A. Lazzaro, O. Selivanenko, V. D'Andrea, W. Maneschg, E. A. Yanovich, L. V. Inzhechik, A. di Vacri, and Marc Walter
Subjects: Nuclear physics, Physics, Physics and Astronomy (miscellaneous), Phase (waves), Order (ring theory), Beta (velocity), Neutrino, Engineering (miscellaneous), Beta decay, Majoron, Semiconductor detector
Abstract: A search for neutrinoless $\beta\beta$ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices n = 1, 2, 3, 7 were searched for. No signals were found and lower limits of the order of 10$^{23}$ yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with $^{76}$Ge. A new result for the half-life of the neutrino-accompanied $\beta\beta$ decay of $^{76}$Ge with significantly reduced uncertainties is also given, resulting in $T^{2\nu}_{1/2} = (1.926 \pm 0.095)\cdot10^{21}$ yr.
Published: 2015

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