Calculations of operating schemes for a passive harmonic cavity in HLS-II

被引：3

作者：

Fan Hao ^{[1
]}

Wu Cong-Feng ^{[1
]}

Liu Guang-Chao ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

来源：

CHINESE PHYSICS C | 2012年 / 36卷 / 09期

基金：

中国国家自然科学基金;

关键词：

harmonic cavity; lifetime improvement; bunch length; operating scheme;

D O I：

10.1088/1674-1137/36/9/018

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A passive higher harmonic cavity (HHC) will be used in the Hefei Light Source 11 Project (HLS-II) to lengthen the bunch and consequently increase the beam lifetime dominated by Touschek scattering. The effects of constant voltage and constant detuning have been calculated and compared over the operating current from 0.9 to 0.2 A on the bunch lengthening for the passive normal conducting harmonic cavity system in HLS-II. The results show that the bunch shape has less change and the lifetime improvement factors are not less than 2.7 over the beam currents for the constant voltage case. The constant voltage operating scheme may be applied to our machine.

引用

页码：895 / 899

页数：5

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