@misc{oai:repo.qst.go.jp:00059473, author = {Miyamoto, Kiriko and Takeda, Hiroshi and Nishimura, Yoshikazu and Yukawa, Masae and Watanabe, Yoshito and Ishigure, Nobuhito and Kouno, Fuyuki and Kuroda, Noriko and Akashi, Makoto and 宮本 霧子 and 武田 洋 and 西村 義一 and 湯川 雅枝 and 渡辺 嘉人 and 石榑 信人 and 光野 冬樹 and 黒田 典子 and 明石 真言}, month = {Sep}, note = {Regrettably, a criticality accident occurred at a uranium conversion facility in Tokai-mura, Ibaraki, Japan, on 30 September, 1999. Radioactivities of 32P in urine, blood and bone samples of the victims who were severely exposed to neutrons were measured. 32P was induced in their whole bodies at the moment of the first nuclear excursion by the reaction 31P (n,gamma) 32P and 32S (n, p) 32P. A realistic biokinetic model was assumed as the exchange of 32P between extracellular fluid compartment and soft tissue compartment occurs only through intracellular compartment, and the model was used for preliminary calculations. Some acute excretion of 32P, caused by decomposition or elution of tissues which occurred at the time of the accident, may have happened in the victims' bodies in the first few days. The working hypotheses in the present work should initiate renewed discussion of 32P biokinetics., Workshop on Internal Dosimetry of Radionuclides:Occupational, Public and Medical Exposure}, title = {Validation and Verification of the ICRP Biokinetic Model of 32P:The Criticality Accident in Tokai-mura, Japan}, year = {2002} }