Measurements of ¹³⁴Cs and ¹³⁷Cs in urine and estimation of the internal dose of an adult exposed to the Chernobyl Accident

Measurements of 134 Cs and 137 Cs in urine and estimation of the internal dose of an adult exposed to the Chernobyl Accident 1 first-author 2 3 1 1 1 corresp Corresponding author, E-mail: zhugy@shmu.edu.cn Corresponding author, E-mail: zhugy@shmu.edu.cn zhugy@shmu.edu.cn Institute of Radiation Medicine, Fudan University, Shanghai 200032, China; Institute of Radiation Medicine, Fudan University, Shanghai 200032, China; Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Medical College, Fudan University, Shanghai 200032, China; Jinan Maritime Safety Administration of China, Jinan 250062, China Jinan Maritime Safety Administration of China, Jinan 250062, China To estimate the internal dose of a Chinese visiting scholar internally contaminated because of the Chernobyl Accident, the contents of 134 Cs and 137 Cs in urine were measured using a Ge(Li) γ-spectrometer. The internal doses were calculated based on data from the ICRP Publications. The effective doses from 134 Cs and 137 Cs were estimated to be 61μSv and 98μSv, respectively. The sum of 159μSv was lower than the total effective dose (310μSv), from the inhalation and ingestion of natural radionuclides. The dose of 131 I was also reviewed referring to the UNSCEAR 2000 Report. The equivalent effective dose of 131 I was estimated to be 2.9mSv, 18 times more than the amount of 134 Cs and 137 Cs. Therefore, it is considered that the earlier estimation of internal doses of 131 I is important in evaluating radiation injuries from a nuclear reactor accident. Gamma spectrometer 134 Cs 137 Cs Urine Internal dose Chernobyl Accident References Maria G , Hon Fon L , Sandro B , et al . Arch Environ Health . 1998 , 53 ( 5 ): 344 - 346 . Arch Environ Health Holgye Z , Maly M . Health Phys , 2002 , 82 ( 4 ): 517 - 520 . Health Phys ICRP Publication 10A. The assessment of internal contamination resulting from recurrent or prolonged uptakes , 1969 . ICRP Publication 10A. The assessment of internal contamination resulting from recurrent or prolonged uptakes ICRP Publication 10. Evalution of radiation doses to body tissues from internal contamination due to occupational exposure . Pergamon Press , 1967 . ICRP Publication 10. Evalution of radiation doses to body tissues from internal contamination due to occupational exposure ICRP Publication. 72, Age-dependent doses to the members of the public from intake of radionuclides, Part 5, Compilation of ingestion and inhalation coefficients . Pergamon Press , 1996 . ICRP Publication. 72, Age-dependent doses to the members of the public from intake of radionuclides, Part 5, Compilation of ingestion and inhalation coefficients UNSCEAR 2000 Report. Sources and effects of ionizing radiation , United Nations, New York . Annex J : 519 , 2000 . UNSCEAR 2000 Report. Sources and effects of ionizing radiation 10.1016/S1001-8042(07)60030-X X838,X591 Partially supported by National Natural Science Foundation of China (No.30370442) . 2006-05-18 2007-04-20 2021-01-19 2007 Nuclear Science and Techniques 02 18