γ辐照加工装置职业病危害控制效果评价

Control effect evaluation on occupational disease harm of γ radiation device

目的监测某γ辐照装置辐照室周围及迷道内的环境辐射水平和检验安全联锁装置性能,评估职业病危害控制管理措施有效性,以控制潜在照射,保护工作人员的健康。方法用辐射剂量仪测量正常工作条件下辐照室外和迷道内的γ辐射水平,按照国家相关法规、标准对安全联锁装置和职业病危害管理措施进行验证和检查。结果辐照装置各处剂量当量率均小于0.2μSv/h,安全联锁装置工作正常,制订有较完善有效的职业病危害管理措施。结论辐照室周围的辐射水平符合国家相关标准的要求。正常情况下,安全联锁措施能够满足预防潜在照射的需要。

Objective To monitor the radiation level near the radiation room, to check the performance of safety interlock, and to control the potential radiation. Methods Radiation close rates of the γ ray in the radiation room and maze were measured using radiation dosimeter. The safety inlock was also checked. Results The radiation dose rates in all measured points outside the radiation room were less than 0. 2 μSv/h. The safety interlock worked well. Conclusion The radiation levels outside test room accorded with the requirement of the standards of our country. The safety interlock was able to prevent the potential radiation in the working order.