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JAEA Reports

Research and development of transparent materials for radiation shield using nanoparticles (Contract research); FY2018 Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development

Collaborative Laboratories for Advanced Decommissioning Science; Kyushu University*

JAEA-Review 2019-039, 104 Pages, 2020/03

JAEA-Review-2019-039.pdf:5.57MB

The Collaborative Laboratories for Advanced Decommissioning Science (CLADS), Japan Atomic Energy Agency (JAEA), had been conducting the Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development (hereafter referred to "the Project") in FY2018. The Project aims to contribute to solving problems in nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2018, this report summarizes the research results of the "Research and Development of Transparent Materials for Radiation Shield using Nanoparticles". The present study aims to reduce radiation exposure of workers in debris retrieval/analysis and reduce deterioration of optical and electronic systems in remote cameras. For these purposes, we develop transparent radiation shield by making the shield materials into nanoparticles, and dispersing/solidifying them in epoxy resin. By making B$$_{4}$$C and W into nanoparticles, we will also develop a radiation shield that shields both neutrons and gamma-rays, and also suppresses secondary gamma-rays produced from neutrons.

Journal Articles

Intercomparisons of benchmark calculations for the transmission of quasi-monoenergetic neutrons generated by 43- and 68-MeV protons through iron and concrete shield

Nakane, Yoshihiro; Nakashima, Hiroshi; Nakao, Noriaki*; Ueki, Kotaro*

Proc. of 3rd Workshop on Simulating Accelerator Radiation Environments (SARE3), p.334 - 342, 1997/00

no abstracts in English

JAEA Reports

Design study on a 1MeV, 12.5MW neutral beam injector module for ITER

Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; *; *; Miyamoto, Kenji; Ohara, Yoshihiro; Watanabe, Kazuhiro; S.Zimin*

JAERI-Tech 95-018, 104 Pages, 1995/03

JAERI-Tech-95-018.pdf:2.72MB

no abstracts in English

JAEA Reports

JAEA Reports

Shielding Benchmark Problems,II

; ; *; *; *; Nakazawa, Masaharu*; *; *; *; ; et al.

JAERI-M 8686, 170 Pages, 1980/02

JAERI-M-8686.pdf:4.96MB

no abstracts in English

Journal Articles

Progress in research of reactor neutron spectra

Kaneko, Yoshihika; Iijima, Tsutomu; Mizuho, Mitsuru; Fuse, Takayoshi*; Fujita, Yoshiaki*; Nakazawa, Masaharu*; Sekiguchi, Akira*; Kimura, Itsuro*

Nihon Genshiryoku Gakkai-Shi, 18(2), p.77 - 88, 1976/02

no abstracts in English

Journal Articles

A Numerical study of heterogeneity effects in fast reactor critical assemblies

Tone, Tatsuzo

Journal of Nuclear Science and Technology, 12(8), p.467 - 481, 1975/08

 Times Cited Count:36

no abstracts in English

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