Power losses caused by longitudinal HOMs in 1.3-GHz cryomodule of SHINE

Jun-Jie Guo; Qiang Gu; Meng Zhang; Zhen Wang; Jian-Hao Tan

doi:10.1007/s41365-019-0628-9

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Power losses caused by longitudinal HOMs in 1.3-GHz cryomodule of SHINE

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | Updated：2021-02-01

- Power losses caused by longitudinal HOMs in 1.3-GHz cryomodule of SHINE
- Nuclear Science and Techniques Vol. 30, Issue 7, Article number: 105(2019)
- Affiliations：
  
  1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  2.University of Chinese Academy of Sciences, Beijing 100049, China
  3.Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- Author bio：
  
  Corresponding author, guqiang@sinap.ac.cn
- Funds：
- DOI：10.1007/s41365-019-0628-9
  CLC：
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Jun-Jie Guo, Qiang Gu, Meng Zhang, et al. Power losses caused by longitudinal HOMs in 1.3-GHz cryomodule of SHINE. [J]. Nuclear Science and Techniques 30(7):105(2019)
DOI：

Jun-Jie Guo, Qiang Gu, Meng Zhang, et al. Power losses caused by longitudinal HOMs in 1.3-GHz cryomodule of SHINE. [J]. Nuclear Science and Techniques 30(7):105(2019) DOI： 10.1007/s41365-019-0628-9.

摘要

Abstract

Shanghai high-repetition-rate XFEL and extreme light facility (SHINE), the first hard XFEL based on a superconducting accelerated structure in China, is now under development at the Shanghai Institute of Applied Physics, Chinese Academy of Sciences. In this paper, power losses caused by trapped longitudinal high-order modes (HOM), steady-state loss, and transient loss generated by untrapped HOMs in the 1.3-GHz SHINE cryomodule are investigated and calculated. The heat load generated by resistive wall wakefields is considered as well. Results are presented for power losses of every element in the 1.3-GHz cryomodule, caused by HOM excitation in the acceleration RF system of the continuous wave linac of SHINE.

关键词

Keywords

Power lossHigher-order modes (HOMs)Resistive wall wakefieldsImpedanceSuperconducting cavities

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