Cs_2 Te photocathode fabrication system at Peking University  

作　　者：戴劲 全胜文 常城 刘克新 赵夔 

机构地区：[1]Institute of Heavy Ion Physics,Peking University

出　　处：《Chinese Physics C》2012年第5期475-478,共4页中国物理C（英文版）

基　　金：Supported by National Basic Research Programme of China (2002 CB713600)

摘　　要：A cesium telluride （Cs 2 Te） photocathode with a quantum efficiency of 13% at 253.7 nm （radiant incidence 200 μW/cm 2 ） is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The cesium telluride cathode will be used to provide a high-brightness electron beam source for the 3＋1/2 photo-injector at Peking University. The design of the system, the fabrication procedures and the preliminary experimental results are presented in this paper.A cesium telluride （Cs 2 Te） photocathode with a quantum efficiency of 13% at 253.7 nm （radiant incidence 200 μW/cm 2 ） is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The cesium telluride cathode will be used to provide a high-brightness electron beam source for the 3＋1/2 photo-injector at Peking University. The design of the system, the fabrication procedures and the preliminary experimental results are presented in this paper.

关 键 词：photo-injector PHOTOCATHODE Cs 2 Te quantum efficiency 

分 类 号：TL503.3[核科学技术—核技术及应用]