Design study on medium beta superconducting half-wave resonator at IMP  

作　　者：An-Dong Wu Sheng-Hu Zhang Wei-Ming Yue Tian-Cai Jiang Yong-Ming Li Feng-Feng Wang Sheng-Xue Zhang Liang-Jian Wen Ran Huang Yuan He Hong-Wei Zhao 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China [2]University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Nuclear Science and Techniques》2016年第4期21-27,共7页核技术（英文）

基　　金：supported by the Important Directional Program of the Chinese Academy of Sciences(No.Y115210YQO);the 973 Program(No.Y437030KJO)

摘　　要：A 325-MHz superconducting half-wave resonator has been designed with β = 0.51. Three shapes of the inner conductors(race track, ring shape and elliptical shape) were optimized to decrease the peak electromagnetic fields and minimize the dissipated RF power on the cavity walls. In order to suppress the operation frequency shift caused by fluctuations of the helium pressure and maximize the tuning ranges, the frequency shifts and mechanical properties were studied on the electric and magnetic areas. The helium vessel was designed to keep the mechanical structure as robust as possible.A 325-MHz superconducting half-wave resonator has been designed with β = 0.51. Three shapes of the inner conductors （race track, ring shape and elliptical shape） were optimized to decrease the peak electromagnetic fields and minimize the dissipated RF power on the cavity walls. In order to suppress the operation frequency shift caused by fluctuations of the helium pressure and maximize the tuning ranges, the frequency shifts and mechanical properties were studied on the electric and magnetic areas. The helium vessel was designed to keep the mechanical structure as robust as possible.

关 键 词：超导谐振器 设计 IMP 射频功率 压力波动 调谐范围 机械性能 频率变化 

分 类 号：TL50[核科学技术—核技术及应用]