射线检验程序(14)

射线检验程序

曝光开始时，无论何因，不许任何人在作业区内。

7.9When exposures are not being made, the x/ray isolator shall be in the OFF position or set disconnected, and isotope container disconnected.

非曝光时，X 射线绝缘体应处于关闭或设定为非连接状态，同位素伽玛源也亦此。

7.10 All exposure times shall be kept to a minimum.

所有曝光应保持最小时间。

7.11 Collimation and lead sheets shall be used to reduce scatter at all times.

始终使用铅板降低散射线。

7.12 External barrier must be erected prior to work commencing.

射线开始作业前必须安装外部防护屏障。

8.0 SAFETY PROTECTION 安全防护

When performing radiography, the operators shall be equipped with Personal film badge and dosimeter (dosifilm). Safety ropes shall block the site with alarming label for protecting of mis-entering. Flashing warning beacon shall also be used.The area will be monitored using calibrated radiation monitor at all times. A test exposure shall be conducted to verify barrier distance meet the safety requirement of exposure level. Barrier distance calculation must be attached to permit. Chart about safety area limited as following:

射线操作时，检测工作人员应佩戴个人剂量仪，并携带剂量报警仪。并将作业区域用安全绳圈起，并使用闪光报警灯，以防止人员误入。控制区应时刻用伦琴计进行辐射水平监测。安全防护距离的计算应按照下表执行：

Safety Control For Radiographic

射线防护的安全控制 No. Source

(I) A (Ci) XsafetyR（m）

2.5µsv/h2.5µsv/h2.5µsv/h2.5µsv/h