K
Koji Niita
Researcher at Japan Atomic Energy Research Institute
Publications - 118
Citations - 5778
Koji Niita is an academic researcher from Japan Atomic Energy Research Institute. The author has contributed to research in topics: Monte Carlo method & Neutron. The author has an hindex of 30, co-authored 116 publications receiving 5007 citations. Previous affiliations of Koji Niita include Japan Atomic Energy Agency.
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Journal ArticleDOI
Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02
Tatsuhiko Sato,Yosuke Iwamoto,Shintaro Hashimoto,Tatsuhiko Ogawa,Takuya Furuta,Shin ichiro Abe,Takeshi Kai,Pi En Tsai,Norihiro Matsuda,Hiroshi Iwase,Nobuhiro Shigyo,Lembit Sihver,Koji Niita +12 more
TL;DR: In this article, the Particle and Heavy Ion Transport Code System (PHITS) 3.02 has been released and the accuracy and the applicable energy ranges of the code were improved.
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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.
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Development of General-Purpose Particle and Heavy Ion Transport Monte Carlo Code
TL;DR: In this paper, the high-energy particle transport code NMTC/JAM was improved for the high energy heavy ion transport calculation by incorporating the JQMD code, the SPAR code and the Shen formula.
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Production of energetic particles in heavy ion collisions
TL;DR: In this article, the authors describe the time evolution of the nuclear many-body system within a nonperturbative transport approach as well as the methods employed for the evaluation of the elementary nucleon-nucleon-particle cross sections.
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Analysis of the (N,xN') reactions by quantum molecular dynamics plus statistical decay model.
Koji Niita,Satoshi Chiba,Toshiki Maruyama,Tomoyuki Maruyama,Hiroshi Takada,Tokio Fukahori,Yasuaki Nakahara,Akira Iwamoto +7 more
TL;DR: A model based on quantum molecular dynamics incorporated with a statistical decay model (SDM) to describe various nuclear reactions in a unified way is proposed and a unified description of the three major reaction mechanisms, i.e., compound, preequilibrium, and spallation processes, is given.