Longitudinal beam dynamic design of 500 kW beam power upgrade for CSNS-II RCS

Longitudinal beam dynamic design of 500 kW beam power upgrade for CSNS-II RCS
复制标题

CSNS-II RCS 500 kW束流功率升级的纵束动力学设计

DOI:
10.1007/s41605-022-00325-5
复制
发表时间:
2022-06
影响因子:
0.6
通讯作者:
Sheng Wang
Sheng Wang
中科院分区:
--
文献类型:
--
作者:
Hanyang Liu;Sheng Wang

文献摘要

参考文献

相似文献

中国空间中子源(CSNS)的加速器由80 MeV氢直线加速器和1.6GeV快循环同步加速器(RCS)组成.设计束流功率为100 kW,达到了设计要求。在升级项目(CSNS-II)中,通过将直线加速器能量提高到300 MeV并在RCS中添加双谐波RF系统,将束流功率升级到500 kW。为了减轻空间电荷效应,提高束流质量,对CSNS-II RCS双谐波射频系统的纵向束流动力学进行了研究。结果与结论优化后的聚束因子有了很大的提高,CSNS-II大大减小了空间电荷效应引起的调谐展宽。通过对空间电荷效应的抑制,可以很好地控制CSNS-II RCS中的束流损失。
PurposeThe accelerator of the China Spallation Neutron Source (CSNS) consists of an 80 MeV H- linac and a 1.6 GeV rapid cycling synchrotron (RCS). The design beam power is 100 kW, which has been reached. In the upgrade project (CSNS-II), the beam power will be upgraded to 500 kW by increasing the linac energy to 300 MeV and adding a dual harmonic RF system in the RCS. In order to alleviate space charge effect and improve beam quality, the longitudinal beam dynamic of CSNS-II RCS dual harmonic RF system has been studied.MethodsAccording to the longitudinal beam dynamic characteristics of CSNS-II RCS at different acceleration stages, the longitudinal emittance, bunching factor, momentum filling factor and bunch length are studied and optimized in this paper.Results and conclusionsThe optimized bunching factor is greatly improved, and the tune spread caused by space charge effect is greatly reduced in CSNS-II. With the suppressed space charge effects, the beam loss can be well controlled in CSNS-II RCS.
DOI: 10.1088/1748-0221/15/07/p07023
发表时间: 2020-07
影响因子: 1.3
作者:
S. Xu;H. Liu;J. Peng;J. Chen;L. Huang;M. Huang;M. Li;X. Lu;X. Luo;Y. Li;Y. An
通讯作者: S. Xu;H. Liu;J. Peng;J. Chen;L. Huang;M. Huang;M. Li;X. Lu;X. Luo;Y. Li;Y. An
DOI: 10.1038/227867b0
发表时间: 1970
期刊: Nature
影响因子: 64.8
作者:
R. C. Barrett
通讯作者: R. C. Barrett
DOI: --
发表时间: 2010
期刊: --
影响因子: --
作者:
M.Yamamoto;M.Nomura;A. Schnase;T. Shimada;F. Tamura
通讯作者: M.Yamamoto;M.Nomura;A. Schnase;T. Shimada;F. Tamura
影响因子: 1.4
作者:
Thomason, J. W. G.
通讯作者: Thomason, J. W. G.
DOI: 10.1142/11111
发表时间: 2019-01
期刊: --
影响因子: --
作者:
S Y Lee
通讯作者: S Y Lee