核应急尿样中关键核素的快速分析及内照射剂量估算  

Rapid Analysis of Key Radionuclides in Urine and Estimation of Internal Dose for Nuclear Accident Emergency

作　　者：赵淑权[1] 黄士斌[2] 刘世明 胡和平[1] 吴明玉[1] 朱国英[1] 

机构地区：[1]复旦大学放射医学研究所,上海200032 [2]复旦大学上海医学院 [3]山东省海事局

出　　处：《中国辐射卫生》2005年第2期85-87,共3页Chinese Journal of Radiological Health

基　　金：复旦大学985基金资助项目

摘　　要：目的估算一名中国访问学者由于切尔诺贝利事故引起的内照射剂量。方法使用Ge(Li)γ谱仪测定尿样中134Cs和137Cs的含量,根据ICRP报告,估算它们的内照射剂量,参考UNSCEAR2000报告,进一步作了131I的剂量回顾。结果来自134Cs、137Cs和131I的有效剂量当量分别是66μSv、88μSv和1728μSv。结论131I的内照射剂量是134Cs和137Cs的11倍,因此早期131I内照射剂量的估算对于核事故辐射损伤的评价具有重要的意义。Objective To estimate the internal doses of a Chinese visiting scholar in the Chernobyl accident. Methods The contents of 134Cs and 137Cs in urine were measured using a Ge (Li)γ-spectrometer. Their internal doses were estimated according to ICRP reports. Dose review of 131I was performed referring to UNSCEAR 2000 report. Results The effective dose equivalent from 134 Cs 137 Cs and 131I were 66 μSv 88 μSv and 1728 μSv respectively. Their summation was 1.9 mSv. Conclusion The internal dose from 131I was 10 times higher than that from 134Cs and 137Cs. So, the earlier estimation of internal doses for 131I is significant in evaluation on radiation injuries of a nuclear reactor accident.

关 键 词：内照射剂量估算 尿样 分析及 ^137CS ^134CS ^131I 切尔诺贝利事故 核素 有效剂量当量 ICRP 辐射损伤 γ谱仪 Sv 核事故 

分 类 号：R144.1[医药卫生—公共卫生与预防医学] R446.12