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为了测量用于x光摄象的氧化铅摄象管的灵敏度。要求使用P20型光源。本文讨论了获得P20光源的两种方法:(1)一个涂有P20萤光粉的不聚焦不偏转的小型示波管和四套电源组成的P20型光源;(2)A光源通过三片特殊的滤光片组成的P20型光源。文章对这两种方法进行了比较。
In order to measure the sensitivity of a lead oxide camera for x-ray imaging. Requires P20 light source. This article discusses two ways to obtain a P20 light source: (1) a P20 light source consisting of a non-deflected, small-wave tube coated with P20 phosphor and four power supplies; (2) A light source passing through three special P20-type light source composed of filters. The article compares these two methods.