@article{oai:repo.qst.go.jp:00043085,
 author = {Nishimura, Yoshikazu and Takeda, Hiroshi and Miyamoto, Kiriko and Watanabe, Yoshito and Kouno, Fuyuki and Kuroda, Noriko and Sun, Kim Hee and Yukawa, Masae and 西村 義一 and 武田 洋 and 宮本 霧子 and 渡辺 嘉人 and 光野 冬樹 and 黒田 典子 and 湯川 雅枝},
 journal = {Journal of Radiological Protection},
 month = {Mar},
 note = {In the criticality accident which occurred on 30 September 1999 at a uranium conversion facility in Tokai-mura, Japan, three workers were severely exposed to neutron and gamma-ray irradiation. Preliminary estimations of doses from blood properties and 24Na concentration in blood were 16-20, 6-10 and 1-4gamma-ray gray-equivalent(gammaGyEq) respectively for the three workers. For apparent dose estimation, neutron-induced radionuclides in biological materials such as blood, hair and urine were measured. Accordingly, we detected 32P in urine samples. The concentration rations of 32P in the urine for the three workers showed a similar tendency to those of 24Na in blood. This result indicated that the radioactivity of 32P in urine could be used to estimate the neutron exposure level.},
 pages = {25--29},
 title = {Determination of P-32 in urine for early estimation of the neutron exposure level for three vctims of the JCO criticality accident.},
 volume = {22},
 year = {2002}
}