多孔鎢銫離子源
A POROUS TUNGSTEN CESIUM ION SOURCE
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摘要: 在光電陰極的制備及對(duì)光電陰極作表面分析中,銫離子源較中性銫源具有一定的優(yōu)點(diǎn)。根據(jù)表面電離的原理,銫離子源使用了多孔鎢、銫鹽及其還原劑。本文介紹了銫離子源的制備,報(bào)告了實(shí)際測(cè)量結(jié)果。
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關(guān)鍵詞:
- 銫離子源; 表面電離; 多孔鎢; 離子電流
Abstract: 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. -
張華順,離子束源和大功率中性束源,原子能出版社,1987年,第二章,第五節(jié).[2]吳兆皓,電子科學(xué)學(xué)刊,8(1986) 6,442-448.[3]D. L. Schaefer, Rev. Sci. Instrum., 41(1970)2,274-275.[4]趙守珍等,真空科學(xué)與技術(shù),9(1989)3，203-204.[5]李昌全等,真空技術(shù),5(1976)2,40-52. -
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