Bunch length measurement at Tsinghua Thomson scattering X-ray source

作     者：杜应超 华剑飞 颜立新 杜强 黄文会 唐传祥 

作者机构：Accelerator Laboratory Department of Engineering Physics Tsinghua University Key Laboratory of Particle and Radiation Imaging (Tsinghua University) Ministry of Education Key Laboratory of High Energy Radiation Imaging Fundamental Science for National Defense 

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

年 卷 期：2011年第35卷第5期

页      面：505-508页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by National Natural Science Foundation of China (NSFC) (10735050, 10805031, 10975088, 10875070) NationalBasic Research Program of China (973 Program) (2007CB815102) 

主　　题：bunch length measurement energy spread photocathode RF gun 

摘      要：The length of electron beam from a photocathode RF gun is determined by a spectrometer, according to the relative energy spread induced by the bunch length during the acceleration in a linac. For a photocathode RF gun, different laser injected phase and beam charge are studied. The compression is changed for the different laser phases, as from 10 ° to 30 ° , and the bunch length is lengthened due to the strong longitudinal space charge force, caused by the increased charge.