钴-60治疗机大多采用气动的方式,把放射源推到照射位置和缩回安全位置。根据我们的经验,气动系统是较容易发生故障的,现以THERATRON-780型钴疗机为例,将一些常见故障的检修和处理方法介绍如下。 1.空气压缩机工作频繁故障原因是系统中有漏气现象存在。检查时(见图1),一般先关闭减压阀,注意压力表1的读数变化,借此判断漏气是在减压阀前部分还是后部分。若 Cobalt-60 treatment machines are mostly pneumatic way to push the radioactive source to the irradiation position and retracted to a safe position. According to our experience, the pneumatic system is more prone to failure, the THERATRON-780 cobalt machine is now an example, some of the common troubleshooting and treatment methods are described below. 1. Air compressor frequent failures due to the system there is a leakage phenomenon exists. Check (see Figure 1), the general first to close the pressure reducing valve, pay attention to changes in the pressure gauge reading 1, to determine whether the leakage in the valve before or after the part. If