1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Electromagnetic-thermal coupling study of the SHINE injector cavity

WEPB070
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC7.T07 Superconducting RF Wednesday Poster Session

Speaker

Xinghao Guo (Shanghai Advanced Research Institute)

Description

The SHINE project is a high-repetition-rate hard X-ray Free Electron Laser (XFEL) facility driven by a superconducting RF linear accelerator with energy exceeding 8.0 GeV. The SHINE LINAC consists of six hundred 1.3 GHz 9-cell cavities, producing photons with energies ranging from 0.4 to 25 keV. This study focuses on the first single-cavity cryomodule of the LINAC, following the electron gun. The injector cavity is a 1.3 GHz superconducting cavity with two main power couplers. The accelerating gradient reached 28 MV/m in the vertical test, but was limited to below 8.1 MV/m in the horizontal test by thermal runaway, failing to meet the 12 MV/m specification. Experiments showed the thermal quench was due to insufficient cooling. Electromagnetic-thermal coupling simulations were conducted to analyze and optimize the cooling conditions. The original cooling setup was enhanced, and several new configurations were proposed. The optimization resulted in a significant increase in the accelerating gradient, and the injector cavity met the specification after applying the enhanced cooling scheme.

Region represented Asia
Paper preparation format LaTeX

Author

Xinghao Guo (Shanghai Advanced Research Institute)

Co-authors

Haixiao Deng (Shanghai Institute of Applied Physics) Xiaowei Wu (Shanghai Zhangjiang Laboratory) Hong Tao Hou (Shanghai Advanced Research Institute) Jinfang Chen (Shanghai Advanced Research Institute) Liang Chu (Shanghai Institute of Applied Physics) Lijun Lu (Shanghai Advanced Research Institute) ShenJie Zhao (Shanghai Institute of Applied Physics) Xuan Huang (Shanghai Institute of Applied Physics) Yawei Huang (ShanghaiTech University) Chen Luo (Deutsches Elektronen-Synchrotron DESY) Xinzhi Yu (Shanghai Advanced Research Institute) Yanfei Zhai (Shanghai Advanced Research Institute)

Presentation materials

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