1 MeV电子加速器辐射屏蔽防护研究  

Study on the Shielding Protection of 1 MeV Electron Accelerator

作　　者：姜灿[1] 陈思[1] 刘宏章 王升[1] 曾正魁 杜纪富 JIANG Can;CHEN Si;LIU Hong-zhang;WANG Sheng;ZENG Zheng-kui;DU Ji-fu(Non-power Nuclear Technology Research and Development Center, Hubei University of Science and Technology, Xianning, Hubei 437100, China;School of Nuclear Technology and Chemistry ＆ Biology, Hubei University of Science and Technology,Xianning, Hubei 437100,China)

机构地区：[1]湖北科技学院非动力核技术研发中心,湖北咸宁437100 [2]湖北科技学院核技术与化学生物学院,湖北咸宁437100

出　　处：《核电子学与探测技术》2017年第12期1213-1217,共5页Nuclear Electronics & Detection Technology

基　　金：湖北科技学院校级科研项目(2016-18X045);湖北省教育厅人文社会科学研究项目(16Q253);非动力核技术湖北省"2011"协同创新项目资助

摘　　要：基于NCRP.51号报告对屏蔽室外关键点的安全性进行理论计算,为湖北科技学院1 Me V高压,50 m A束流强度的电子加速器设计一个屏蔽系统。在电子加速器正常运行情况下,使用辐射防护剂量率仪对屏蔽室周边环境辐射水平进行监测。监测结果满足《γ射线和电子束辐射装置防护检测规范》(GBZ 141—2002)中透射辐射所产生的平均剂量率小于2.5μSv/h,能保证从事辐射加工工作人员及外来人员身体不受辐射损伤,对场地安全性有重要指导意义。A shielding system for 1 Me V 50 m A electron accelerator in the Hubei University of Science and Technology was designed based on NCRP. 51 Report. The radiation dose rate meter monitored the radiation levels outside of the concrete shielding room while the electron accelerator worked normally. The average dose rate by transmission radiation was lower than 2. 5 μSv/h that is the maximum by the specifications for radialogical protection test of γ-rays and electron irradiation facilities(GBZ 141—2002）. It protects the staff in the factory and the surrounding public against the damaging effects of radiation to insure the safety of human bodies. It has important guiding significance to the safety of the devices.

关 键 词：电子加速器 辐射防护 辐射安全 屏蔽设计 NCRP 

分 类 号：TL7[核科学技术—辐射防护及环境保护]