Design of the new couplers for C-ADS RFQ

A new special coupler with a kind of bowl-shaped ceramic window for a proton linear accelerator named the Chinese Accelerator Driven System （C-ADS） at the Institute of Modern Physics （IMP） has been simulated and constructed and a continuous wave （CW） beam commissioning through a four-meter long radi...

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Published inChinese physics C Vol. 39; no. 4; pp. 84 - 86
Main Author 石爱民 孙列鹏 张周礼 徐显波 施龙波 李晨星 王文斌
Format Journal Article
LanguageEnglish
Published 01.04.2015
Subjects
Accelerators
Beams (radiation)
Ceramics
Commissioning
Continuous wave
Couplers
Design engineering
RFQ
Simulation
加速器驱动系统
散热问题
耦合器
脉冲模式
设计
质子直线加速器
近代物理研究所
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ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/39/4/047004

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Summary:A new special coupler with a kind of bowl-shaped ceramic window for a proton linear accelerator named the Chinese Accelerator Driven System （C-ADS） at the Institute of Modern Physics （IMP） has been simulated and constructed and a continuous wave （CW） beam commissioning through a four-meter long radio frequency quadruple （RFQ） was completed by the end of July 2014. In the experiments of conditioning and beam, some problems were promoted gradually such as sparking and thermal issues. Finally, two new couplers were passed with almost 110 kW CW power and 120 kW pulsed mode, respectively. The 10 mA intensity beam experiments have now been completed, and the couplers during the operation had no thermal or electro-magnetic problems. The detailed design and results are presented in the paper.
Bibliography:SHI Ai-Min SUN Lie-Peng ZHANG Zhou-Li XU Xian-Bo SHI Long-Bo LI Chen-Xing WANG Wen-Bin （1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 University of Chinese Academy of Sciences, Beijing 100049, China）
11-5641/O4
coupler, RFQ, ceramic window, S parameter
A new special coupler with a kind of bowl-shaped ceramic window for a proton linear accelerator named the Chinese Accelerator Driven System （C-ADS） at the Institute of Modern Physics （IMP） has been simulated and constructed and a continuous wave （CW） beam commissioning through a four-meter long radio frequency quadruple （RFQ） was completed by the end of July 2014. In the experiments of conditioning and beam, some problems were promoted gradually such as sparking and thermal issues. Finally, two new couplers were passed with almost 110 kW CW power and 120 kW pulsed mode, respectively. The 10 mA intensity beam experiments have now been completed, and the couplers during the operation had no thermal or electro-magnetic problems. The detailed design and results are presented in the paper.
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ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/39/4/047004