Mismatch study of C-ADS main linac

The ADS accelerator in China is a Continuous-Wave （CW） proton linac with 1.5 GeV beam energy, 10 mA Imam current, and 15 MW beam power. To meet the extremely low beam loss rate and high reliability requirements, it is very important to study the beam halo caused by beam mismatch, which is one major...

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Published inChinese physics C Vol. 39; no. 9; pp. 103 - 107
Main Author 孟才 唐靖宇 裴士伦 闫芳
Format Journal Article
LanguageEnglish
Published 01.09.2015
Subjects
ADS
Beams (radiation)
China
Emittance
Envelopes
Halos
Linear accelerators
Oscillations
Simulation
仿真结果
束流损失
电子束能量
质子直线加速器
连续波
配研
高可靠性
Online AccessGet full text
ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/39/9/097002

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Summary:The ADS accelerator in China is a Continuous-Wave （CW） proton linac with 1.5 GeV beam energy, 10 mA Imam current, and 15 MW beam power. To meet the extremely low beam loss rate and high reliability requirements, it is very important to study the beam halo caused by beam mismatch, which is one major sources of beam loss. To avoid envelope instability, the phase advances per period are all smaller than 90 degrees in the main linac design. In this paper, simulation results of the emittanee growth and the envelope oscillations caused by mismatch in the main linac sect;ion are presented. To meet the emittanee growth requirement, the transverse and longitudinal mismatch factors should be smaller than 0.4 and 0.3, respectively.
Bibliography:11-5641/O4
mismatch, C-ADS accelerator, emittance, beam loss
MENG Cai,TANG Jing-Yu,PEI Shi-Lun,YAN Fang（ Key Laboratory of Particle Acceleration Physics ＆ Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China）
The ADS accelerator in China is a Continuous-Wave （CW） proton linac with 1.5 GeV beam energy, 10 mA Imam current, and 15 MW beam power. To meet the extremely low beam loss rate and high reliability requirements, it is very important to study the beam halo caused by beam mismatch, which is one major sources of beam loss. To avoid envelope instability, the phase advances per period are all smaller than 90 degrees in the main linac design. In this paper, simulation results of the emittanee growth and the envelope oscillations caused by mismatch in the main linac sect;ion are presented. To meet the emittanee growth requirement, the transverse and longitudinal mismatch factors should be smaller than 0.4 and 0.3, respectively.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/39/9/097002