Simulation and analysis of the transverse spectrum in HIRFL-CSR

作     者：李朋 原有进 冒立军 杨建成 李国宏 殷达鈺 李杰 李小妮 柴伟平 石健 

作者机构：Institute of Modern PhysicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2011年第35卷第2期

页      面：183-187页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：Supported by National Natural Science Foundation of China (10635090) 

主　　题：HIRFL-CSR transverse spectrum solenoid electron beam power supply ripple 

摘      要：Particles in a storage ring oscillate in the longitudinal and transverse dimensions. Therefore, the signal that beam has generated can be analyzed in the frequency domain to extract many beam parameters, such as tune, momentum spread, emittance and their evolution with time and so on. In this paper, the transverse spectrum in HIRFL-CSR was simulated and analyzed under different conditions, including electron cooling, hollow electron beam, solenoid effect, the tune shift caused by power supply ripple and the misalignment between ion and electron beams. The result of the simulation shows that the longitudinal magnetic field of the electron cooling device should be compensated by a ＂compensation solenoid＂, and the power supply ripple must be controlled, otherwise the accumulation would be affected and the beam would be lost.