摘要
介绍了中国散裂中子源(CSNS)直线加速器真空系统的组成和抽气系统的设计。利用氦质谱检漏仪和四极质谱计两种手段对RFQ腔进行检漏,通过对施加示漏介质前后RFQ腔内残余气体成分曲线分析、对比压力变化曲线等,确定了漏点位置。排除泄漏故障后,RFQ腔很快获得了10-6Pa的真空,满足了直线加速器对真空度的要求。
The composition and design of vacuum system of China Spallation Neutron Source(CSNS)linear accelerator are introduced. The leakage of Radio Frequency Quadrupole(RFQ)cavity was detected by helium mass spectrometer and quadrupole mass spectrometer. The leakage point was determined by analyzing the residual gas composition curves and comparing the pressure change curves of RFQ cavity before and after the leakage medium was applied. And then the RFQ cavity quickly obtained the pressure of 10-6 Pa after eliminating leakage,which met the requirements of the linear accelerator for pressure.
作者
刘顺明
关玉慧
黄涛
王鹏程
刘佳明
谭彪
欧阳华甫
LIU Shunming;GUAN Yuhui;HUANG Tao;WANG Pengcheng;LIU Jiaming;TAN Biao;OUYANG Huafu(Institute of High Energy Physics,Chinese Academy of Science,Beijing 100049,China;Spallation Neutron Source Science Center,Dongguan 523803,Guangdong,China)
出处
《真空与低温》
2019年第5期348-354,共7页
Vacuum and Cryogenics
作者简介
刘顺明(1987-),男,山东临沂人,硕士,工程师,主要从事真空技术研究。E-mail:smliu@ihep.ac.cn;通信作者:黄涛(1980-),男,湖北宜昌人,高级工程师,主要从事CSNS加速器真空系统研究。E-mail:taohuang@ihep.ac.cn。
