Preliminary design and multipacting simulation of a SRF quarter wave electron gun at Peking University  

作　　者：范培亮 朱凤 全胜文 刘克新 

机构地区：[1]State Key Laboratory of Nuclear Physics and Technology,Peking University

出　　处：《Chinese Physics C》2014年第5期87-92,共6页中国物理C（英文版）

基　　金：Supported by National Basic Research Project(2011CB808302);National Natural Science Funds(11075007)

摘　　要：Peking University is designing a new SRF gun that is composed of a quarter wave resonator （QWR） and an elliptical cavity. Compared to the elliptical cavity, the QWR is sufficiently compact at the same frequency and its electric field is quasi-DC. The RF parameters are determined by optimization of QWR cavity structure and the possible multipacting locations are analyzed by 2D MP simulation. The simulation results show that multipacting is not a critical issue for our optimized cavity structure.Peking University is designing a new SRF gun that is composed of a quarter wave resonator （QWR） and an elliptical cavity. Compared to the elliptical cavity, the QWR is sufficiently compact at the same frequency and its electric field is quasi-DC. The RF parameters are determined by optimization of QWR cavity structure and the possible multipacting locations are analyzed by 2D MP simulation. The simulation results show that multipacting is not a critical issue for our optimized cavity structure.

关 键 词：QWR multipacting electron gun 

分 类 号：TN14[电子电信—物理电子学]