^(192)Ir γ射线探伤机使用相关操作外照射环境辐射测量

External Irradiation Monitoring from Relevant Operation of ^(192)Ir γ-ray Defect Detecting Machine

目的了解某企业^(192)Ir射线探伤机运输、野外探伤作业及存储操作时的周围环境辐射水平,分析探伤活动的安全性。方法根据γ射线探伤活动辐射特征,参照相关标准,使用FD3013B型智能化X-γ辐射仪对该企业探伤活动三个环节开展探伤机周围空气比释动能率监测。结果运输车辆周围监测结果为0.05~24.79μGy/h,探伤作业时周围监测结果为0.05~0.27μGy/h,暂存库外表面最大值为0.99μGy/h。结论该企业探伤活动三个操作环节均符合国家标准要求,并提出了相关的防护管理建议。

Objective To ensure safety of operations of 192Ir γ-ray defect detecting machine,surrounding dose rates during transportation,outdoors weld inspection and storage of this machine were monitored.Methods Based on external irradiation characteristics of this machine,and relevant standards,air kerma rate of the above three processes were monitored.Results The monitored air kerma rate of transportation ranged from 0.05μGy/h to 24.79μGy/h,outdoors weld inspection ranged from 0.05μGy/h to 0.27μGy/h,and the maximum of storage was 0.99μGy/h.Conclusion All of the monitored data did not exceed the relevant national standards,but some suggestions on radiation protection measures are proposed.