辐射防护 ›› 2015, Vol. 35 ›› Issue (2): 117-122.

• 经验交流 • 上一篇    下一篇

某工厂移动顶棚式X射线探伤室环境监测及评价

李青, 马君健, 刘伟, 陈庆锋, 高新国, 赵凌曦, 张婧, 丁世刚   

  1. 山东省分析测试中心, 济南 250014
  • 收稿日期:2013-12-31 出版日期:2015-03-20 发布日期:2024-10-21
  • 作者简介:李青(1979—),男,2007年毕业于中科院研究生院中科院海洋研究所海洋地质专业,获理学硕士学位,工程师。E-mail:lq_century@163.com

Environment monitoring and evaluation to a mobile roof type X-ray flaw detection room

Li Qing, Ma Junjian, Liu Wei, Chen Qingfeng, Gao Xinguo, Zhao Lingxi, Zhang Jing, Ding Shigang   

  1. Shandong Analysis and Test Center, Jinan 250014
  • Received:2013-12-31 Online:2015-03-20 Published:2024-10-21

摘要: 采用451P加压电离室巡测仪对某工厂工业X射线探伤机在移动顶棚式探伤室内正常运行时其探伤室周边辐射环境进行监测。结果显示:曝光室防护门两侧门缝监测点位超标,其余监测点位辐射水平在0.15~0.37 μGy/h范围内,能够满足2.5 μGy/h的限值要求。据此对曝光室防护门进行了屏蔽核算,提出了整改建议,并在防护门整改后进行了检测,其结果满足2.5 μGy/h的限值要求。并对职业人员及公众人员可能接受的年有效剂量进行了估算。

关键词: X射线探伤机, 移动顶棚式探伤室, 环境监测, 公众辐射

Abstract: A 451P Ion Chamber Survey Meter was used to monitor the surrounding radiation environment of a mobile roof type X-ray flaw detection room while the industrial X-ray flaw detection machine running in the detection room. The results show that the monitoring values on both sides of the exposure chamber door exceed the standard values, while the remaining monitoring sites values (0.15—0.37 μGy/h) can meet the limit requirement of 2.5 μGy/h. The shield of the exposure chamber door was calculated accordingly with improvement suggestions proposed then. The monitoring values of the door after rectification meet the limit requirement. Estimation was also made to the potential annual effective doses for the workers and the public.

Key words: X-ray flaw detection machine, mobile roof type X-ray flaw detection room, environmental monitoring, radiation to public

中图分类号: 

  • R144