| LÜYumin,FU Baohua,HAN Lin.Biological dose assessment by chromosomal aberration analysis in Henan 60Co radiation source accident[J].Chinese Journal of Radiological Medicine and Protection,2001,21(3):151-155 |
| Biological dose assessment by chromosomal aberration analysis in Henan 60Co radiation source accident |
| Received:February 12, 2001 |
| DOI： |
| KeyWords:Co radiation accident Chromosomal aberrations Biological dose assesssment |
| FundProject: |
| Author Name | Affiliation | | LÜYumin | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | FU Baohua | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | HAN Lin | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | 赵凤玲 | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | 陈玉浩 | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | 姚仲甫 | Henan Institute of Occupational Medicine, Zhengzhou 450052, China | | 罗陆军 | Henan Institute of Occupational Medicine, Zhengzhou 450052, China |
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| Abstract:: |
| Objective Biological dose assessment was performed by chromosomal aberration analysis for seven victims exposed accidentally to 60 Co gamma-rays in Henan Province,P.R.China. Methods The individual radiation dose was estimated by the yields of dicentrics plus rings.The well-distributed exposure or non-uniform one was tested by the Poisson distribution of dic+r. Results The equivalent whole body doses for the seven victims were estimated to be 5.09 Gy(Mei),2.61 Gy(Tian),2.49 Gy(Wang),.89 Gy (Yong),0.74 Gy (Min),0.58 Gy(Yi) and 0.08 Gy(Yu) respectively on d4/d5 after the accident.These doses were very consistent with the mean doses calculated from physical measurement and conformable to the clinical diagnosis.The dic+r aberrations of “Mei” and “Wang” did not accord with Poisson distribution,whereas those of the other 5 cases did. Conclusion The analysis of chromosomal aberrations is an extremely reliable method in biological dosimetry.The radiations which “Mei” and “Wang” were exposed to were heterogeneous while they were homogeneous for the other 5 cases. |
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