Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Tsuyoshi Misawa"'
Autor:
Kosuke Tanabe, Masao Komeda, Yosuke Toh, Yasunori Kitamura, Tsuyoshi Misawa, Ken’ichi Tsuchiya, Hiroshi Sagara
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract The global challenge of on-site detection of highly enriched uranium (HEU), a substance with considerable potential for unauthorized use in nuclear security, is a critical concern. Traditional passive nondestructive assay (NDA) techniques, s
Externí odkaz:
https://doaj.org/article/2939e6eca975431181b20a9af557465d
Publikováno v:
Nuclear Engineering and Technology, Vol 45, Iss 1, Pp 81-88 (2013)
Neutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelera
Externí odkaz:
https://doaj.org/article/e5ae832dff194cb58a103d9e6b692d59
Publikováno v:
Science and Technology of Nuclear Installations, Vol 2012 (2012)
Basic experiments on the accelerator-driven system (ADS) at the Kyoto University Critical Assembly are carried out by combining a solid-moderated and -reflected core with the fixed-field alternating gradient accelerator. The reaction rates are measur
Externí odkaz:
https://doaj.org/article/1348b1d96e884495859c4c4aaf798c03
Autor:
Kosuke Tanabe, Masao Komeda, Yosuke Toh, Yasunori Kitamura, Tsuyoshi Misawa, Ken’ichi Tsuchiya, Norimitsu Akiba, Hidetoshi Kakuda, Kazunari Shibasaki, Hiroshi Sagara
Publikováno v:
Journal of Nuclear Science and Technology. :1-13
Publikováno v:
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Autor:
Yasunori Kitamura, Tsuyoshi Misawa
Publikováno v:
Annals of Nuclear Energy. 123:119-134
In the previous study, the theoretical formulae of two time-domain reactor noise techniques, i.e., the auto-covariance and the variance-to-mean function techniques, were derived (Kitamura et al., 2018). These two techniques analyse the temporal fluct
Publikováno v:
Annals of Nuclear Energy. 120:691-706
The conventional time-domain reactor noise techniques analyse the number of neutron detector pulse signals, so that they sometimes encounter serious difficulties owing to the count-loss effect due to the dead time of detector systems. To avoid all th
Publikováno v:
Annals of Nuclear Energy. 159:108300
The rotation method is a novel method for detecting nuclear materials using a neutron source such as californium. In this method, while a neutron source is rotated rapidly nearby a measurement object, neutron measurement is carried out by synchronizi
Autor:
Takehito Hayakawa, Heishun Zen, Ryoichi Hajima, Tsuyoshi Misawa, Masaki Kando, Izuru Daito, Toshiteru Kii, K. Masuda, S. Fujimoto, Hideaki Ohgaki, T. Shizuma
Publikováno v:
IEEE Transactions on Nuclear Science. 64:1635-1640
A Neutron/Gamma-ray combined inspection system for hidden special nuclear materials (SNMs) in cargo containers has been developed under a program of Japan Science and Technology Agency in Japan. This inspection system consists of an active neutron-de
Autor:
Yasunori Kitamura, Tsuyoshi Misawa
Publikováno v:
Annals of Nuclear Energy. 103:470-479
Recently, a modified Feynman-alpha technique for the subcritical system driven by periodically triggered neutron bursts was developed. One of the main features of this technique is utilization of a simple formula that is advantageous in evaluating th