一、前言 X线机摄片是医疗诊断的重要手段之一,摄片时,胶片对X射线感光能力很差,只有使X射线转变成可见光后,才能有效地使胶片感光,X射线增感屏就是起把X射线转变成可见光的作用。因此X射线增感屏是X线机摄片时必须具备的重要器材之一。目前国内外普遍使用钨酸钙增感屏,它已有七八十年的历史。长期来,停留在原有技术 I. Introduction X-ray machine radiography is one of the important means of medical diagnosis, radiography, the film on the X-ray sensitivity is poor, only the X-ray into visible light, in order to effectively make the film light, X-ray sensitization Screen is the role of the X-ray into visible light. So X-ray screen is X-ray machine must have one of the important equipment. At present, the general use of calcium tungsticate screens at home and abroad, it has seventy to eighty years of history. For a long time, stay in the original technology