论文部分内容阅读
故障现象：我院F99—IA型500mAX线机，配置上海医疗器械九广美国汤姆逊影像增强器管。使用五年后，开机发现增强管输出屏一边向外打火，火花长3Cm，监示器无图像显不。故障检查与分析：从现象分析，故障出现在阳极高压部分。首先对高压进行检测。在正常情况下，阳极高压应为27K
Symptoms: Our hospital F99-IA 500mAX line machine is equipped with Shanghai Thomson Image Intensifier Tube. Five years later, after booting, the output screen of the booster tube was found to ignite outward. The spark was 3Cm long and there was no image display on the monitor. Fault inspection and analysis: From the phenomenon analysis, the fault appears in the high voltage part of the anode. The high pressure is first tested. Under normal conditions, the anode high voltage should be 27K