论文部分内容阅读
8 问:在射线照相中采用的金属增感屏,除了铅增感屏外,还可以采用什么金属作增感屏?它们的应用特点和优缺点是什么?答:在射线照相中,当管电压低干120kV 时,则增感屏前屏对射线的吸收作用将大于增感作用。因此,使用能量较低的 X 射线时,可采用锡箔作为前屏。射线能量在120keV 到2MeV 范围时,一般推荐
8 Q: The metal screen used in radiography, in addition to the lead screen, but also what metal can be used as screen? What are their application characteristics and advantages and disadvantages? A: In radiography, when the tube When the voltage is low, 120kV, the absorption of radiation by the front screen of the sensitizing screen will be greater than the sensitization effect. Therefore, when using lower-energy X-rays tin foil can be used as the front screen. Ray energy in the 120keV to 2MeV range, the general recommendation