Design of S-band re-entrant cavity BPM  

作　　者：LUO Qing SUN Baogen HE Duohui 

机构地区：[1]National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, China

出　　处：《Nuclear Science and Techniques》2009年第3期133-139,共7页核技术（英文）

基　　金：Supported by the Natural Science Foundation of China (10875117);the National "985 Project" (173123200402002)

摘　　要：An S-band cavity BPM is designed for a new injector for HLS (Hefei Light Source). It consists of two cavities that work on 2448 MHz: a re-entrant position cavity tuned to TM110 mode and a reference cavity tuned to TM010 mode. Cut-through waveguides are used as pickups to suppress the monopole signal. Simulations with different assumption of dimension change are performed to evaluate errors caused by mechanical error and give general tolerance. Design of electronics is given. Theoretical resolution of this design is 31 nm.An S-band cavity BPM is designed for a new injector for HLS （Hefei Light Source）. It consists of two cavities that work on 2448 MHz： a re-entrant position cavity tuned to TM110 mode and a reference cavity tuned to TM010 mode. Cut-through waveguides are used as pickups to suppress the monopole signal. Simulations with differ- ent assumption of dimension change are performed to evaluate errors caused by mechanical error and give general to- lerance. Design of electronics is given. Theoretical resolution of this design is 31 nm.

关 键 词：BPM 电子学 单极信号 理论 

分 类 号：TN4[电子电信—微电子学与固体电子学]