生产测井用密封源的存储与辐射防护

Storage and Protection of Sealed Radioactive Source for Production Logging

生产测井使用的密封源具有较强电离辐射,对放射性操作人员具有较大的伤害性。文章在对放射性密封源进行风险评估的基础上,通过计算密封源存储过程中操作人员所受的辐射与距离、时间的关系,提出了减少操作人员照射剂量当量的有效辐射防护措施为:利用距离、时间、屏蔽防护方法,降低操作人员照射剂量;改善放射源存储条件,从本质上保证放射安全;加强放射源监管,增强安全防范意识;建立和完善各项放射性管理规章制度。

The sealed source used in production logging has strong ionization radiation,which is harmful to the radioactive material operator.On the basis of the risk assessment on sealed radioactive source,this paper puts forward effective radiation protection measures to reduce the dose equivalent to operating personnel by calculating the relationship between the radiation received by the operation personnel and distance and time during the sealed source storage process.The distance,time and shielding measures can be used to reduce operator exposure dose.In the way of improving conditions of radiation source storage it can essentially ensure radiation safety.Effective ways such as strengthening the supervision of radioactive source,enhancing safety awareness,establishing and improving the rules and regulations of the radioactive management are put forward as well.