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

To estimate the internal dose of a Chinese visiting scholar internally contaminated because of the Chernobyl Accident, the contents of 134Cs and 137Cs in urine were measured using a Ge(Li) γ-spectrometer. The internal doses were calculated based on data from the ICRP Publications. The effective dose...

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Bibliographic Details
Published in:Nuclear science and techniques 2007-04, Vol.18 (2), p.115-117
Main Authors: ZHAO, Shuquan, HUANG, Shibin, LIU, Shiming, HU, Heping, WU, Mingyu, XIANG, Xiqiao, ZHU, Guoying
Format: Article
Language:English
Subjects:
134Cs
137Cs
Chernobyl Accident
Gamma spectrometer
Internal dose
Urine
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Summary:To estimate the internal dose of a Chinese visiting scholar internally contaminated because of the Chernobyl Accident, the contents of 134Cs and 137Cs 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 134Cs and 137Cs were estimated to be 61 μSv and 98 μ Sv, respectively. The sum of 159 μSv was lower than the total effective dose (310 μSv), from the inhalation and ingestion of natural radionuclides. The dose of 131I was also reviewed referring to the UNSCEAR 2000 Report. The equivalent effective dose of 131I was estimated to be 2.9 mSv, 18 times more than the amount of 134Cs and 137Cs. Therefore, it is considered that the earlier estimation of internal doses of 131I is important in evaluating radiation injuries from a nuclear reactor accident.
ISSN:1001-8042
2210-3147
DOI:10.1016/S1001-8042(07)60030-X