K
Keisuke Okumura
Researcher at Japan Atomic Energy Agency
Publications - 44
Citations - 1129
Keisuke Okumura is an academic researcher from Japan Atomic Energy Agency. The author has contributed to research in topics: Neutron & Nuclear data. The author has an hindex of 10, co-authored 44 publications receiving 1005 citations.
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Journal ArticleDOI
Particle and Heavy Ion Transport code System, PHITS, version 2.52
Tatsuhiko Sato,Koji Niita,Norihiro Matsuda,Shintaro Hashimoto,Yosuke Iwamoto,Shusaku Noda,Tatsuhiko Ogawa,Hiroshi Iwase,Hiroshi Nakashima,Tokio Fukahori,Keisuke Okumura,Tetsuya Kai,Satoshi Chiba,Takuya Furuta,Lembit Sihver +14 more
TL;DR: An upgraded version of the Particle and Heavy Ion Transport code system (PHITS2.52) was developed and released to the public in this article, which is a more powerful tool for particle transport simulation applicable to various research and development fields.
Journal ArticleDOI
JENDL-4.0 Benchmarking for Fission Reactor Applications
Go Chiba,Keisuke Okumura,Kazuteru Sugino,Yasunobu Nagaya,Kenji Yokoyama,Teruhiko Kugo,Makoto Ishikawa,Shigeaki Okajima +7 more
TL;DR: Much more accurate and reliable prediction for neutronic parameters for both thermal and fast reactors becomes possible by using the library JENDL-4.0.
Journal ArticleDOI
Overview of particle and heavy ion transport code system PHITS
Tatsuhiko Sato,Koji Niita,Norihiro Matsuda,Shintaro Hashimoto,Yosuke Iwamoto,Takuya Furuta,Shusaku Noda,Tatsuhiko Ogawa,Hiroshi Iwase,Hiroshi Nakashima,Tokio Fukahori,Keisuke Okumura,Tetsuya Kai,Satoshi Chiba,Lembit Sihver +14 more
TL;DR: A general purpose Monte Carlo Particle and Heavy Ion Transport code system, PHITS as mentioned in this paper, is developed through the collaboration of several institutes in Japan and Europe and can deal with the transport of nearly all particles, including neutrons, protons, heavy ions, photons, and electrons, over wide energy ranges.
A set of ORIGEN2 cross section libraries based on JENDL-4.0. ORLIBJ40
Keisuke Okumura,Kazuteru Sugino,Kensuke Kojima,Tsutomu Okamoto,Tomoyuki Jin,Jun-ichi Katakura +5 more
Journal ArticleDOI
Determination of 79Se and 135Cs in Spent Nuclear Fuel for Inventory Estimation of High-Level Radioactive Wastes
Shiho Asai,Yukiko Hanzawa,Keisuke Okumura,Nobuo Shinohara,Jun Inagawa,Shinobu Hotoku,Kensuke Suzuki,Satoru Kaneko +7 more
TL;DR: In this article, the amounts of 79Se and 135Cs in a spent nuclear fuel solution were measured by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) and showed good agreement with those obtained by the ORIGEN2 code using the data library of JENDL-3.3.