|
|
|
| Biological Dose Assessment for a Victim Accidentally Exposed to 60Co gamma-rays in Hebi, Henan Province |
| LIU Chang-an1, BAI Yu-shu1, MA Jian-feng1, et al |
| National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088 China |
|
|
|
|
Abstract Objective To assess the biological dose for a victim accidentally exposed to 60Co gamma-rays in Hebi, Henan Province, P.R.China.Methods The individual radiation dose was initially estimated by clinic emergency bioindicators for radiation exposure and further with chromosomal aberration analysis by the yields of dicentrics plus rings (dic+r).The well-uniform ex-pose or non-uniform one was tested by the Poisson distribution of dic+r.Results Based on the clinical manifestation, the equivalent whole body dose was estimated to be 1 Gy~2 Gy and the skin dose of the right hand to be equal to or more than 20 Gy.Based on the cytogenetic findings, the equivalent whole body dose for the victim was estimated to be 1.54 Gy, with the 95% confidence interval from 1.32 Gy to 1.75 Gy.The dic+r aberrations of the victim were in conforming roughly to the Poisson distribution.Conclusion This victim was exposed approximately homogeneous to radiation.The diagnoses of was made slight bone marrow form of acute radiation sickness of the bone marrow with acute radiation injuries Ⅳ° of skin of the right hand.
|
|
Received: 08 September 2004
|
|
|
|
|
|
| [1] |
FENG Junchao, ZHANG Lin, DAI Hong, LIU Yulong, BIAN Huahui, CHEN Weibo, WANG Youyou, MA Ya, LIU Wei. Study on the influence factors of automatic analysis of dicentric chromosomes for biodosimetry[J]. , 2018, 27(4): 289-293. |
|
|
|
|
