JAERI-Universities joint research project on radiation safety in proton accelerator facilities; Outline of the project

Yamaguchi, Yasuhiro; Hirayama, Hideo*

Journal of Nuclear Science and Technology, 41(Suppl.4), p.498 - 501, 2004/03

http://www.tandfonline.com/doi/abs/10.1080/00223131.2004.10875756

JAERI-Universities Joint Research Project has been carried out to study the radiation safety in high-energy proton accelerator facilities since 2000. Ten groups from 2 research institutes and 5 universities joined in the project to tackle 3 major subjects below, using a quasi-monoenergetic neutron field at TIARA facility of JAERI. The groups had annual meetings to discuss the plan and progress of the studies and exchange their views for effective cooperation. (1)Studies on basic physical data necessary for neutron dosimetry. (2)Development of neutron monitors and dosimeters for several tens MeV region. (3)Studies on formation of radioactive aerosols and gases for internal dosimetry.

Technical feasibility study on a fusion power monitor based on activation of water flow

Kaneko, Junichi; Uno, Yoshitomo; Nishitani, Takeo; Maekawa, Fujio; Tanaka, Teruya; Shibata, Yasunari; Ikeda, Yujiro; Takeuchi, Hiroshi

Review of Scientific Instruments, 72(1), p.809 - 813, 2001/01

https://doi.org/10.1063/1.1320996

no abstracts in English

Design of ITER neutron monitor using micro fission chambers

Nishitani, Takeo; L.C.Johnson*; Ebisawa, Katsuyuki*; C.Walker*; Ando, Toshiro; Kasai, Satoshi

JAERI-Research 98-049, 38 Pages, 1998/08

JAERI-Research-98-049.pdf:1.71MB

no abstracts in English

Performance of nitrogen neutron monitor at a high intense neutron instrument and its comparison with other neutron monitors

Harada, Masahide; Yamaguchi, Yuji; Takata, Shinichi; Oikawa, Kenichi; Oku, Takayuki

no journal, , 

Neutron monitors used in neutron instruments at a high intense neutron source is required to monitor high-intensity neutron beams. We have studied and prototyped a neutron monitor with nitrogen gas as neutron detection gas. In this study, we conducted a performance experiment of the nitrogen neutron monitor at NOBORU, a neutron instrument at the Materials and Life Science Experimental Facility of the J-PARC center. At the same time, measurements with other neutron monitors were done for comparison. In this presentation, we will explain the development status of the nitrogen neutron monitor and the results of the performance experiment.