An emittance measurement device for a space-charge dominated electron beam

作     者：王文静 黄森林 全胜文 林林 刘克新 

作者机构：State Key Laboratory of Nuclear Physics and TechnologyPeking University 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2012年第36卷第9期

页      面：867-870页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：Supported by Major State Basic Research Development Program of China (2011CB808302) Peking University grant for interdisciplinary or developing disciplinary studies 

主　　题：emittance measurement multi-slit space charge effect DC-SC photocathode injector 

摘      要：Beam emittance is one of the most important parameters for electron sources. To investigate the beam emittance of the 3.5-cell DC-SC photocathode injector developed at Peking University, a multi-slit emittance measurement device has been designed and manufactured. The designed slit width, mask thickness and beamlet drift length are 100 ~m, 3 mm and 430 mm respectively. It is suitable for the electron beam with energy of about 5 MeV and the average current less than 0.1 mA. The preliminary measurement result of the rms emittance of the electron beam produced by the DC-SC injector is about 5 7 ***.