环境与职业医学2013，Vol.30Issue(4)：290-291,294,3.
血液辐照仪的辐射剂量监测
Monitoring Results of Radiation Dose in a Blood Irradiator
摘要
Abstract
[ Objective ] To monitor the radiometric data of a selected blood irradiator to the surrounding environment and the accumulated radiation dose received by operators, and to provide scientific basis for blood irradiator supervision in the future. [ Methods ] From 2004 to 2011, environmental radiometric data of 451P y-ray were acquired at different distances from a selected blood irradiator by y-ray radiometric monitor. Personal accumulated radiation doses of machine operators were recorded by thermoluminescent dosimeters quarterly. [ Results ] During operation, the maximum y-ray dose-rate (0.78 μSv/h) was found at 0.05 m north from the blood irradiator, and the averages were 0.73 μSv/h at 0.05 m radius and 0.38 μSv/h at lm radius. When the blood irradiator was switched off, the average dose rates at 0.05 m radius and lm radius were 0.21 μSv/h and 0.13 μSv/h, respectively. For the operators, the annually accumulated doses ranged from 0.171 mSv/a to 0.186mSv/a, and the average was 0.181 mSV/a. [ Conclusion ] The blood irradiator is within the safe range of national occupational exposure standard and its environmental and personal radiation doses should be monitored regularly by operators.关键词
辐照仪/环境/操作人员/辐射剂量Key words
irradiator/ environment/ operator/ radiation dose分类
医药卫生引用本文复制引用
倪波,朱立苇,孟忠华..血液辐照仪的辐射剂量监测[J].环境与职业医学,2013,30(4):290-291,294,3.
