BEPCⅡ超导腔失效分析  

Analysis of the failure of BEPCⅡ SRF cavities

作　　者：肖麟阁 戴建枰[1] 王群要[1] 林海英[1] 马强[1] 米正辉 孙毅[1] 王洪磊 Xiao Lingge;Dai Jianping;Wang Qunyao;Lin Haiying;Ma Qiang;Mi Zhenghui;Sun Yi;Wang Honglei(The Institute of High Energy Physics, Accelerator Division, Beijing 100049, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院大学,北京100049

出　　处：《强激光与粒子束》2019年第8期94-97,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11575216)

摘　　要：以北京正负电子对撞机(BEPCII)超导腔为例,通过监测运行中超导腔的主要参数,如腔压、输入功率、调谐角等,并与理论计算相比较的方法,对超导腔失效常见的几种原因,包括:高频系统硬件故障、束流丢失以及调谐器机械运动不畅等,进行了分析,重点解决了调谐器机械运动不畅导致超导腔失效这一比较复杂的问题。这些分析为减少BEPCII高频故障,增加BEPCII运行可靠性提供了重要参考。Taking BEPCII superconducting RF (SRF) cavity as an example, this paper analyzes several common causes of the SRF cavity failure, including hardware failure of RF system, beam loss and mechanical failure of the tuner, by combining theoretical calculation and experimental observation of the main RF parameters such as the cavity voltage, the input power and the tuning angle, etc. It focuses on the SRF failure caused by the abnormal motion of the tuner. These analyses provide an important reference for reducing BEPCII RF system faults and increasing the operational reliability of BEPCII.

关 键 词：强流加速器 射频超导 超导腔失效 BEPCII 

分 类 号：TN815[电子电信—信息与通信工程]