按I. E. C. 标准对X线影象增强器的转换系数进行测量时,对X线管电流(即毫安)的稳定有较高的要求。目前国内各种型式的X线机采用稳压器来稳定X线管的灯丝加热电压,从而来稳定X线管电流。显然,这种稳压方法对医院作透视或一般拍片已能满足使用要求。尽管灯丝加热电压采用稳压器稳压,但是X线管电流仍可 According to I.E.C. standard X-ray image intensifier conversion factor measurement, the X-ray tube current (ie milliampere) higher stability requirements. At present, various types of X-ray machines in the country use a voltage stabilizer to stabilize the filament heating voltage of the X-ray tube to stabilize the X-ray tube current. Obviously, this method of stabilizing the hospital for perspective or general film has been able to meet the requirements. Although the filament heating voltage regulator regulator, but the X-ray tube current can still