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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.
Co
O
filmHu, W.*; Hayashi, Koichi*; Fukumura, Tomoteru*; Akagi, Kazuto*; Tsukada, Masaru*; Happo, Naohisa*; Hosokawa, Shinya*; Owada, Kenji; Takahashi, Masamitsu; Suzuki, Motohiro*; et al.
Applied Physics Letters, 106(22), p.222403_1 - 222403_5, 2015/06
Times Cited Count：39 Percentile：81.57(Physics, Applied)Nagane, Satoru; Kitahara, Katsumi; Yoshikawa, Seiji; Miyasaka, Yasuhiko*; Fukumura, Nobuo*; Nishizawa, Ichio*
Dekomisshoningu Giho, (42), p.2 - 10, 2010/09
A reactor installed at the center part of the nuclear ship "Mutsu" has been stored safely and exhibited in a reactor room building since 1996. The reactor vessel and its internals are key components because of main radioactive wastes for the reasonable decommissioning plan in the future. This report describes the one-piece removal method as the one package of the reactor vessel with its internals intact with a shipping container or additional shields. The reactor vessel package (Max. 100 ton) will be classified acceptable for burial at the low level radioactive waste (LLW), which will be buried at a LLW pit facility under waste disposal regulations. And also, the package will be classified as an IP-2-equivalent package according to the requirement for Shipments and Packagings.
Goto, Masahiro*; Zhigilei, L. V.*; Hobley, J.*; Kishimoto, Maki; Garrison, B. J.*; Fukumura, H.*
Journal of Applied Physics, 90(9), p.4755 - 4760, 2001/11
Times Cited Count：17 Percentile：58.52(Physics, Applied)no abstracts in English
Takeuchi, Motoyoshi; Nakajima, Katsutoshi; Fukumura, Nobuo*; Nakayama, Fusao*; Ohori, Hideshi*
Dekomisshoningu Giho, (24), p.27 - 46, 2001/09
no abstracts in English
Kishimoto, Maki; Hobley, J.*; Goto, Masahiro*; Fukumura, H.*
Advanced Materials, 13(15), p.1155 - 1158, 2001/08
Times Cited Count：10 Percentile：50.79(Chemistry, Multidisciplinary)no abstracts in English
Iwashita, Mitsushige*; Arigane, Kenji; Kishimoto, Katsumi; Seiki, Y.*; Fukumura, Nobuo*; Mio, K.*
Journal of Nuclear Science and Technology, 37(Suppl.1), p.372 - 378, 2000/03
no abstracts in English
Kim, E.; Nakamura, Takashi*; Uwamino, Y.*; Ito, S.*; Fukumura, A.*
Journal of Nuclear Science and Technology, 37(Suppl.1), p.811 - 815, 2000/03
no abstracts in English
Goto, Masahiro*; Kawanishi, Shunichi; Fukumura, H.*
Applied Surface Science, 154-155, p.701 - 705, 2000/02
Times Cited Count：15 Percentile：61.51(Chemistry, Physical)no abstracts in English
Goto, Masahiro; Hobley, J.; Kawanishi, Shunichi; Fukumura, H.
Applied Physics A, 69(suppl.), p.S257 - S261, 1999/12
Times Cited Count：8 Percentile：39.82(Materials Science, Multidisciplinary)no abstracts in English
Goto, Masahiro*; Ichinose, Yuji; Kawanishi, Shunichi; Fukumura, H.*
Japanese Journal of Applied Physics, Part 2, 38(1A-B), p.L87 - L88, 1999/01
Times Cited Count：8 Percentile：39.82(Physics, Applied)no abstracts in English
Lippert, T.*; Gerber, T.*; Wokaun, A.*; Funk, D. J.*; Fukumura, H.; Goto, Masahiro
Applied Physics Letters, 75(7), p.1018 - 1020, 1999/00
Times Cited Count：39 Percentile：81.37(Physics, Applied)no abstracts in English
Goto, Masahiro*; Ichinose, Yuji; Kawanishi, Shunichi; Fukumura, H.*
Applied Surface Science, 138-139, p.471 - 476, 1999/00
Times Cited Count：10 Percentile：51.95(Chemistry, Physical)no abstracts in English
D.M.Karnakis*; Goto, Masahiro*; Ichinose, Yuji; Kawanishi, Shunichi; Fukumura, H.*
Applied Physics Letters, 73(10), p.1439 - 1441, 1998/09
Times Cited Count：7 Percentile：36.37(Physics, Applied)no abstracts in English
D.M.Karnakis*; T.Lippert*; Ichinose, Yuji; Kawanishi, Shunichi; Fukumura, H.*
Applied Surface Science, 127-129, p.781 - 786, 1998/00
Times Cited Count：34 Percentile：81.48(Chemistry, Physical)no abstracts in English
Fukumura, H.*; Ujii, Hiroshi*; *; *; D.M.Karnakis*; Ichinose, Yuji; Kawanishi, Shunichi; *; *
Applied Surface Science, 127-129, p.761 - 766, 1998/00
Times Cited Count：20 Percentile：69.31(Chemistry, Physical)no abstracts in English
Saito, Kenichi*; Ichinose, Yuji; Kawanishi, Shunichi; Fukumura, H.*
Chemical Physics Letters, 291(3-4), p.433 - 437, 1998/00
Times Cited Count：11 Percentile：36.14(Chemistry, Physical)no abstracts in English
*; *; Fukumura, H.*; *; Nishii, Masanobu; Ichinose, Yuji; Kawanishi, Shunichi
Reza Kenkyu, 25(4), p.306 - 311, 1997/04
no abstracts in English
*; Fukumura, H.*; *
Reza Kenkyu, 25(4), p.288 - 295, 1997/04
no abstracts in English
