摘要
目的:探讨了解浠水县放射及介入工作人员个人剂量监测现状和结果.方法:收集浠水县2019年1月至2022年6月期间放射及介入工作人员个人剂量监测资料.结果:浠水县2019-2022年间用人单位数比较无明显差异,监测人次及监测4周期占比随监测人数增多而上升,于2021年的监测人数、监测人次、监测4周期占比为最高,各年度的监测4周期占比比较,(P ＜ 0.05);584名工作人员合计集体年剂量为410.79mSv,年均有效量为0.86mSv/a,年有效剂量为＜1mSv/a的412名、1～mSv/a的169名、≥
Abstract
Objective To investigate the status and results of personal dose monitoring of radiation and intervention workers in Xishui County. Methods: Personal dose monitoring data of radiation and intervention workers in Xishui County from January 2019 to June 2022 were collected. Results: There was no significant difference in the number of employers in Xishui County from 2019 to 2022. The number of people monitored and the proportion of the four monitoring cycles increased with the increase of the number of people monitored. The number of people monitored, the number of people monitored and the proportion of the four monitoring cycles in 2021 was the highest, and the proportion of the four monitoring cycles in each year was compared (P＜0.05); The total collective annual dose of 584 staff members was 410.79 mSv, the annual effective dose was 0.86 mSv/a, the annual effective dose was＜1 mSv/a for 412, 1～mSv/a for 169, and ≥ 2 mSv/a for 3. The comparison of the annual effective dose between different ages, working years, and occupational categories was statistically significant (P＜0.05); The results of eye lenses of 105 radiation intervention workers showed that the total annual effective dose was 47.62％, 43.81％, 12.38％ and 6.67％, respectively (P＜0.05). Conclusion: The annual effective dose of radiation and interventional workers in Xishui County is at a low level and does not exceed the management target value; The effective dose of older and older workers is relatively large, which can be used for key monitoring; The effective dose of eye lens of personnel with large workload is relatively high, so the management of wearing protective equipment can be more standardized, and long-term monitoring of eye lens dose can be carried out.
万方数据