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X线影象增强器电视在透视时,由于人体各部位脏器的密度不同,用同-KVp和剂量的X线透视人体,其穿透人体后落在X线影象增强器输入屏上的剂量差异甚大。这样,使人体不同部位在监示器荧光屏上显示的图象亮度差异极大,有时甚至不能显示图象,就可能产生漏诊和误诊。为解决这个问题,在透视人体不同部位时,必须用不同KVp和剂量的X线,也就是要随时调节管电压和管电流。因此,在临床诊断中X线剂量自动控制已成为X线影象增强器电视不可缺少的技
X-ray image intensifier TV in perspective, due to the different parts of the body organs of different density, with the same-KVp and dose X-ray perspective of the human body, which penetrates the human body after falling on the X-ray image intensifier input screen Dosages vary widely. In this way, the brightness of the images displayed on the monitor screen of different parts of the human body is greatly different, and sometimes even the images can not be displayed, it may cause missed diagnosis and misdiagnosis. In order to solve this problem, X-ray of different KVp and dose must be used when looking at different parts of the human body, that is, the tube voltage and the tube current need to be adjusted at any time. Therefore, in the clinical diagnosis of X-ray dose automatic control has become an indispensable technology for X-ray image intensifier TV