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Gubler, P.; Yamamoto, Naoki*; Yang, D.-L.*
Journal of Cosmology and Astroparticle Physics (Internet), 2022(9), p.025_1 - 025_36, 2022/09
Times Cited Count：2 Percentile：36.77(Astronomy & Astrophysics)Riyana, E. S.*; Suda, Shoya*; Ishibashi, Kenji*; Matsuura, Hideaki*; Katakura, Junichi*; Sun, G. M.*; Katano, Yoshiaki
Journal of Nuclear Science and Technology, 56(5), p.369 - 375, 2019/05
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)Nuclear reactors produce a great number of electron antineutrinos mainly from beta-decay chains of fission products. Such neutrinos have energies mostly in MeV range. We are interested in neutrinos in a region of keV, since they may have information on fuel burn-up and may be detected in future with advanced measurement technology. We calculate reactor antineutrino spectra especially in the low energy region. In this work we present neutrino spectra from various reactors such as typical PWR reactor and others types of reactors for comparison. Our result shows the electron antineutrino flux in the low energy region increases with burn-up of nuclear fuel by accumulated nuclides with low Q values in beta decay.
decay of 
CaIwata, Yoritaka*; Shimizu, Noritaka*; Otsuka, Takaharu*; Utsuno, Yutaka; Men
ndez, J.*; Homma, Michio*; Abe, Takashi*
Physical Review Letters, 116(11), p.112502_1 - 112502_6, 2016/03
Times Cited Count：81 Percentile：94.57(Physics, Multidisciplinary)no abstracts in English
Sumiyoshi, Kosuke*; Yamada, Shoichi*; Suzuki, Hideyuki*; Chiba, Satoshi
Physical Review Letters, 97(9), p.091101_1 - 091101_4, 2006/09
Times Cited Count：101 Percentile：93.04(Physics, Multidisciplinary)no abstracts in English
Sumiyoshi, Kosuke*; Yamada, Shoichi*; Suzuki, Hideyuki*; Shen, H.*; Chiba, Satoshi; Toki, Hiroshi*
Astrophysical Journal, 629(2, Part1), p.922 - 932, 2005/08
Times Cited Count：228 Percentile：97.41(Astronomy & Astrophysics)no abstracts in English
High-intensity Proton Accelerator Project Team
JAERI-Tech 2003-044, 788 Pages, 2003/03
JAERI-Tech-2003-044.pdf:47.31MB
This report presents the detail of the technical design of the acclerators for the High-Intensity Proton Accelerator Facility Project, J-PARC. The accelerator complex comprises a 400-MeV room-temperature linac (600-MeV superconducting linac), 3-GeV rapid-cycling synchrotron (RCS), and a 50-GeV synchrotron (MR). The 400-MeV beam is injected to the RCS, being accelerated to 3 GEV. The 1-MW beam thus produced is guided to the Materials Life Science Experimental Facility, with both the pulsed spallation neutron source and muon source. A part of the beam is transported to the MR, which provides the 0.75-MW beam to eithter the Nuclear and Fundamental Particle Experimental Facility or the Neutrino Production Target. On the other hand, the beam acclerated to 600 MeV by the superconducting linac is used for the Nuclear Waster Transmutation Experiment. In this way, this facility is unique, being multipurpose one, including many new inventions and Research and Development Results.
O(
) reaction at forward angles and structure of the spin-dipole resonancesKawabata, Takahiro*; Ishikawa, Takatsugu*; Ito, M.*; Nakamura, M.*; Sakaguchi, Harutaka*; Takeda, H.*; Taki, T.*; Uchida, Makoto*; Yasuda, Yusuke*; Yosoi, Masaru*; et al.
Physical Review C, 65(6), p.064316_1 - 064316_12, 2002/06
Times Cited Count：20 Percentile：70.12(Physics, Nuclear)no abstracts in English
Fujiwara, Mamoru; Kawabata, Takahiro*; Mohr, P.*
Journal of Physics G; Nuclear and Particle Physics, 28(4), p.643 - 648, 2002/04
Times Cited Count：13 Percentile：58.5(Physics, Nuclear)no abstracts in English
Wang, S. C.*; Wong, H. T.*; Fujiwara, Mamoru
Nuclear Instruments and Methods in Physics Research A, 479(2-3), p.498 - 510, 2002/03
Times Cited Count：22 Percentile：78.36(Instruments & Instrumentation)no abstracts in English
He,t) charge-exchange reactionsFujiwara, Mamoru
Nuclear Physics A, 687(1-2), p.18c - 25c, 2001/04
no abstracts in English
Yb
Lu for spectroscopy of proton-proton and other sub-MeV solar neutrinosFujiwara, Mamoru; Akimune, Hidetoshi*; Van den Berg, A. M.*; Cribier, M.*; Daito, Izuru*; Ejiri, Hiroyasu*; Fujimura, Hisako*; Fujita, Yoshitaka*; Goodman, C. D.*; Hara, Keigo*; et al.
Physical Review Letters, 85(21), p.4442 - 4445, 2000/11
Times Cited Count：24 Percentile：73.99(Physics, Multidisciplinary)no abstracts in English
Tsintsadze, L. N.
Astrophysics and Space Science, Vol.274, p.719 - 723, 2000/00
no abstracts in English
Sekiya, Hiroyuki*; Iwata, Yoshihiro; Ito, Chikara
no journal, ,
no abstracts in English
neutrino detectorHino, Yota; Hasegawa, Shoichi; Furuta, Hisataka*; Maruyama, Takasumi*; Suekane, Fumihiko*
no journal, ,
JSNS2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is a short baseline neutrino oscillation experiment searching for appearance oscillation caused by sterile neutrinos in Material and Life Science Experimental Facility (MLF) of J-PARC. The JSNS2 detector consists of 17 tons of Gadolinium loaded liquid scintillator (Gd-LS) contained in an acrylic vessel at the center of the detector and 33 tons of unloaded liquid scintillator. The Gd-LS layer is a fiducial volume for neutrino detection via the inverse beta-decay using the delayed coincidence method. The acrylic vessel has been manufactured in Taiwan, and its quality has been investigated from the viewpoints of detector performance and safety. In this presentation, we report the design and the result of the surveys of optical properties, geometry, pressure resistance and leakage, and present status of the detector construction.
experimentHasegawa, Shoichi
no journal, ,
JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment which research for a sterile neutrino from
to 
appearance oscillation mode with muon decay at rest. MLF (Material and Life science Facility at J-PARC) is an experimental facility using neutrons and Muons. However, it is a neutrino source generated from generated meson which a 3 GeV proton beam inject to a mercury target. JSNS experiment will search an oscillation phenomenon in a short distance by placing a detector in the MLF building. In this talk, we will report on the current state about the experiment.
Hasegawa, Shoichi; Konno, Tomoyuki*; Kawasaki, Tateo*
no journal, ,
A new reactor neutrinos detector using a plastic scintillator is developed. This detector is compact and intended to measure () from nuclear reactors by ground-based installation. The compact one-ton class detector for inverse beta decay (IBD) must be installed close to the(
) source. For this purpose, the detector is being developed near the core of a research reactor. For ground-based detectors, it is an important issue to distinguish the () signals from background events. In this study, a plastic scintillator cubic detector with high position resolution will be developed to improve the background event rejection in the prompt of IBD signal. The status and plan of neutrino monitor experiments at research reactor are described.
