摘要
在光电阴极的制备及对光电阴极作表面分析中,铯离子源较中性铯源具有一定的优点。根据表面电离的原理,铯离子源使用了多孔钨、铯盐及其还原剂。本文介绍了铯离子源的制备,报告了实际测量结果。
In the surface analysis and the manufacture of photocathode the cesium ion source shows some advantages as compared with the neutral cesium source. According to the principle of surface ionization, a cesium ion source is manufactured with porous tungsten and cesium chromate. A tablet of porous tungsten and a nickel tube are welded by a laser beam. The ion source is heated to about 1000K io terms of an indirect heating oven and its experimental results are given.
关键词
多孔钨
铯离子源
光电阴极
制备
Cesium ion source
Surface ionization
Porous tungsten
Ion current
