| Item type |
一般雑誌記事 / Article(1) |
| 公開日 |
2023-03-15 |
| タイトル |
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タイトル |
DS86 Neutron Dose : Monte Carlo Analysis for Depth Profile of 15 Eu Activity in a Large Stone Sample |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
article |
| 著者 |
Endo, Satoru
Iwatani, Kazuo
oka, Takamitsu
Hoshi, Masaharu
Shizuma, Kiyoshi
imanaka, Tetsuji
Takada, Jun
Fujita, Shoichiro
Hasai, Hiromi
Endo, Satoru
Iwatani, Kazuo
oka, Takamitsu
Hoshi, Masaharu
Shizuma, Kiyoshi
imanaka, Tetsuji
Takada, Jun
Fujita, Shoichiro
Hasai, Hiromi
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The depth profile of 152Eu activity induced in a large granite stone pillar by Hiroshima atomic bomb neutrons was calculated by a Monte Carlo N-Particle Transport Code (MCNP). The pillar was on the Motoyasu Bridge, located at a distance of 132 m (WSW) from the hypocenter. It was a square column with a horizontal sectional size of 82.5 cm x 82.5 cm and height of 179 cm. Twenty-one cells from the north to south surface at the central height of the column were specified for the calculation and Eu activities for each cell were calculated. The incident neutron spectrum was assumed to be the angular fluence data of the Dosimetry System 1986 (DS86). The angular dependence of the spectrum was taken into account by dividmg the whole solid angle into twenty-six directions. The calculated depth profile of specific activity did not agree with the measured profile. A discrepancy was found in the absolute values at each depth with a mean multiplication factor of 0.58 and also in the shape of the relative profile. The results indicated that a reassessment of the neutron energy spectrum in DS86 is required for co汀ect dose estimation. |
| 書誌情報 |
Journal of radiation research
巻 40,
号 2,
p. 169-181,
発行日 1999-06
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| 出版者 |
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出版者 |
日本放射線影響学会 |
| フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |
oka_takamitsu_990636.pdf (796.7 kB)
