Status of CSNS Project

Fu, Shinian; H.Chen,; Y.W.Chen,; Dong, Haiyi; Fang, Shu; Huang, Kaimin; Wen, Kejun; J.Li,; H.C.Liu,; Ma, Lili; Ouyang, Hao; Qu, Huamin; Sun, Hong-xiang; Tang, Jingyu; C.H.Wang,; Q.B.Wang,; S.Wang,; Xu, Taoguang; Xu, Zhongxiong; C.Zhang,; J.Zhang,

doi:10.7566/jpscp.8.012005

Proceedings of the 2nd International Symposium on Science at J-Parc — Unlocking the Mysteries of Life, Matter and the Universe 2015

DOI: 10.7566/jpscp.8.012005

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Status of CSNS Project

Shinian Fu¹,

H.Chen H.Chen²,

Y.W.Chen Y.W.Chen³

et al.

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2024

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New operation analysis method for vacuum tube driving a tuned cavity

Wu,

Zhang,

et al. 2024

Phys. Rev. Accel. Beams

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The rf system of China Spallation Neutron Source (CSNS) Rapid Cycling Synchrotron (RCS) utilizes vacuum tubes to drive the ferrite-loaded cavities. Ensuring stable tube operation in the rf system is crucial for the acceleration of high-intensity beams, as any instability may impede further increases in beam power. Therefore, the operation of the vacuum tube under heavy beam loading has attracted significant attention, particularly in the case of CSNS-II RCS, where the circulating beam current is expected to reach up to 15.25 A, imposing a substantial burden on the vacuum tube for beam loading compensation. Thus, a comprehensive analysis of tube operation is imperative. However, current methods for the tube operation analysis are developed based on wideband rf cavities, which are inadequate when the load of the tube is a narrowband ferrite-loaded cavity equipped with a tuning system. The presence of a tuning system renders the modeling method for wideband rf cavities inapplicable for ferrite-loaded cavities. Therefore, the development of a new method is necessary. This paper introduces a novel method for analyzing operation of vacuum tube driving a tuned cavity. The effectiveness of the method is validated by comparing the analysis results with measurements under beam loading conditions. Furthermore, an estimation of tube operation under 500 kW beam loading for CSNS-II is provided. Published by the American Physical Society 2024

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New operation analysis method for vacuum tube driving a tuned cavity

Wu,

Zhang,

et al. 2024

Phys. Rev. Accel. Beams

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Status of CSNS Project

Cited by 1 publication

References 3 publications

New operation analysis method for vacuum tube driving a tuned cavity

New operation analysis method for vacuum tube driving a tuned cavity

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