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Murakami, Masashi; Hoshino, Yuzuru; Nakatani, Takayoshi; Sugaya, Toshikatsu; Fukumura, Nobuo*; Sanda, Toshio*; Sakai, Akihiro
JAEA-Technology 2019-003, 50 Pages, 2019/06
JAEA-Technology-2019-003.pdf:4.42MB
Toward the establishment of a common approach to determine the radioactivity concentrations in dismantling wastes arising from research reactors, radionuclide concentrations in the reactor structure materials of aluminum, carbon steel, shield concrete, and graphite of TRIGA Mark II reactor at Rikkyo University, Japan, were evaluated with both radiochemical analysis and theoretical calculation. The measured nuclides by the radiochemical analysis were 
H, 
Co, and 
Ni in aluminum, H, Co, Ni, and 
Eu in carbon steel, H, Co, and Eu in shield concrete, and H, 
C, Co, Ni, and Eu in graphite. Neutron-flux distributions and neutron-induced activities were computed with DORT and ORIGEN-ARP codes, respectively. Using the results of material composition analysis, radioactivity concentrations were conservatively predicted with good accuracy except for graphite material.
Sakamoto, Yoshiaki
Genshiryoku Bakkuendo Kenkyu (CD-ROM), 24(2), p.141 - 146, 2017/12
Some research reactors are under decommissioning or preparation for application of decommissioning license for regulation authority in our country. The reasonable treatment and disposal of dismantling waste is important for decommissioning of research reactors. Therefore, in this paper, JAEA's approach of the treatment and disposal of dismantling waste was introduced from the point of view of disposal of low level radioactive waste arising from research, industrial and medical facilities.
Tomii, Hiroyuki; Matsuo, Kiyoshi*; Shiraishi, Kunio; Watabe, Kozo; Saiki, Hideo*; Kawatsuma, Shinji*; Rindo, Hiroshi*; Zaitsu, Tomohisa*
Dekomisshoningu Giho, (31), p.11 - 20, 2005/03
no abstracts in English
*; *
JNC TJ8420 2000-013, 96 Pages, 2000/03
JNC-TJ8420-2000-013.pdf:6.04MB
no abstracts in English
Abe, Masayoshi; ;
Dekomisshoningu Giho, 0(15), p.35 - 49, 1996/12
no abstracts in English
Miyasaka, Yasuhiko
Dekomisshoningu Giho, 0(14), p.24 - 33, 1996/08
no abstracts in English
Miyasaka, Yasuhiko
Enerugi Rebyu, 15(9), p.11 - 15, 1995/00
no abstracts in English
Yasunaka, Hideo; ;
Dekomisshoningu Giho, (6), p.50 - 60, 1992/11
no abstracts in English
; ; Hoshi, Tatsuo; *; ; ; ; ; ; Tachibana, Mitsuo; et al.
Genshiryoku Kogyo, 37(2), p.14 - 59, 1991/02
no abstracts in English
;
Genshiryoku Kogyo, 29(6), p.34 - 36, 1983/00
no abstracts in English
