Fluence and energy spectrum of released neutrons from the JCO criticality accident site.
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Accession number;01A0231224
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| Title;Fluence and energy spectrum of released neutrons from the JCO criticality accident site. |
| Author;
KOJIMA SADAO
(Aichi Med. Univ., Dep. of Med.)
IMANAKA TETSUJI
(Kyoto Univ., Res. Reactor Inst.)
MITSUGASHIRA TOSHIAKI
(Inst. for Mater. Res., Tohoku Univ.)
NAKANISHI TAKASHI
(Fac. of Sci., Kanazawa Univ.)
SEKI RIKI
(Univ. of Tsukuba, Inst. of Chem.)
SASAKI KEN'ICHI
(Rikkyo Univ., Coll. of Sci.)
SAITO TADASHI
(Osaka Univ., Radioisot Res. Center)
YAMAGUCHI YOSHIAKI
(Osaka Univ., Radioisot Res. Center)
FURUKAWA MICHIAKI
(Yokkaichi Univ., Fac. Environmental and Information Sci., JPN)
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Journal Title;Abstracts of Papers. Symposium on Radiochemistry
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Journal Code:F0139B
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ISSN:1345-2762
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VOL.44th;NO.;PAGE.67(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;A criticality accident occurred at JCO Company Limited in Tokai-mura, Ibaraki Prefecture on September 30, 1999 and fission neutrons were continuously emitted for about 20 hours. Metal products and chemical reagents were collected at places with distances of 1.8-65 m and 270 m from the criticality accident site. Measurement of radionuclides induced from (n, gamma) and (n, p) reactions was attempted to estimate the fluences and the energy spectrum of released neutrons. These results will serve to evaluate the actual and more accurate doses of the personnel who had been exposed to neutrons in the Tokai-mura criticality accident. (author abst.) |
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