故障一 :在诊视床上用固定阳极管做胸部和胃肠透视时 ,荧光屏上荧光闪动 ,并且荧光亮后明显变暗 ,毫安表指示不稳 ,开始指示正常 ,后随即下降 ,Ｘ线光透力不足影像模糊不清 ,但平床摄影正常。检修 :根据故障现象 ,问题主要在高压电路 ,经检查Ｘ线管、整流管、两个高压线圈及电 Fault 1: When the fixed anode tube is used for chest and gastrointestinal fluoroscopy on the bed, the fluorescence on the fluorescent screen flickers, and the fluorescent light is obviously darkened. The milliampere meter indicates instability, and the indication is normal, and then it falls, X-rays. The lack of transparency is blurred, but flat bed photography is normal. Maintenance: According to the fault phenomenon, the problem is mainly in the high-voltage circuit, after inspection of X-ray tube, rectifier, two high-voltage coils and electricity