^(60)Co γ辐照装置的安全防护及装源技术的改进

Safety protection and technical improvement of ^(60)Co irradiation facilities

以多年的实践经验结合过去操作时出现的事故和可能出现的故障对^(60)Coγ辐照装置作了改进,屏蔽门与源升降联锁;增设了万能转换开关,超程时能自动切断主电源;装设γ报警和闭路电视系统;采用电磁吸源法安装钴源。

To ensure personal safety, much improvement has been made in the design of 60Co irradiation compartment. The shielding door was interlocked while the 60Co source to being lifted to the irradiation position or lowered to the shielded position. A universal change-over switch was used to cut the power supply when the source moved beyond the limits. Both γ-ray alarm and a closed-TV system were adopted. The electromagnetic attraction method was employed to shift the 60Co source from the Pb container to the source pipe.