title: Biodosimetry of restoration workers for the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi nuclear power station accident.
abstract: The biological dose of nuclear workers engaged in emergency response tasks at Tokyo Electric Power Company (TEPCO) Fukushima Daiichi Nuclear Power Station was estimated in the present study. As the national core center for radiation emergency medical preparedness in Japan, the National Institute of Radiological Sciences (NIRS) received all individuals who were suspected of being overexposed to acute radiation. In the course of health examinations at NIRS, biological dosimetry was performed by the dicentric chromosome assay (DCA). Twelve individuals were examined from 21 March-1 July 2011. The results indicated that the estimated exposure doses for all individuals were lower than 300 mGy, with the mean value of about 101 mGy. These results by DCA were in accordance with those obtained by physical dosimetry based on personal dosimeter recording assessment. The results corroborate the fact that no acute radiation syndrome was observed among the workers examined.
authors: Department of Radiation Dosimetry, Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba, Japan. y-suto@nirs.go.jp
authors: Yumiko
authors: Y
authors: Suto
authors: Momoki
authors: M
authors: Hirai
authors: Miho
authors: M
authors: Akiyama
authors: Gen
authors: G
authors: Kobashi
authors: Masanari
authors: M
authors: Itokawa
authors: Makoto
authors: M
authors: Akashi
authors: Nobuyuki
authors: N
authors: Sugiura
mesh_terms: D000328:Adult; D002877:Chromosomes, Human / Q000528:radiation effects; D062406:Fukushima Nuclear Accident; D006801:Humans; D007564:Japan; D008297:Male; D055848:Nuclear Power Plants; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*; D055815:Young Adult