Commissioning and operation of the cryostat for 3W1 SC wiggler

Miao-Fu Xu; Xiang-Zhen Zhang; Rui Ye; Jin-Can Wang; Xiao-Juan Bian; Yao Gao; Min-Xian Li; Fu-San Chen; Xiao-Chen Yang; Rui Ge

doi:10.1007/s41365-023-01232-0

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Commissioning and operation of the cryostat for 3W1 SC wiggler

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | Updated：2023-08-14

- Commissioning and operation of the cryostat for 3W1 SC wiggler
- Nuclear Science and Techniques Vol. 34, Issue 6, Article number: 96(2023)
- Affiliations：
  
  1.Institute of High Energy physics, Chinese Academy of Sciences, Beijing 100049, China
  2.Key Laboratory of Particle Acceleration Physics and Technology, Chinese Academy of Sciences, Beijing 100049, China
  3.Center for Superconducting RF and Cryogenics, Institute of High Energy physics, Beijing 100049, China
  4.University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
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- DOI：10.1007/s41365-023-01232-0
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Miao-Fu Xu, Xiang-Zhen Zhang, Rui Ye, et al. Commissioning and operation of the cryostat for 3W1 SC wiggler. [J]. Nuclear Science and Techniques 34(6):96(2023)
DOI：

Miao-Fu Xu, Xiang-Zhen Zhang, Rui Ye, et al. Commissioning and operation of the cryostat for 3W1 SC wiggler. [J]. Nuclear Science and Techniques 34(6):96(2023) DOI： 10.1007/s41365-023-01232-0.

摘要

Abstract

A 3W1 superconducting wiggler (SCW) with the pole gap of 68 mm was successfully tested and installed in a BEPC II storage ring in November, 2019. The goal of zero liquid helium consumption was achieved, and the cryogenic system exhibited a 12% residual cooling capacity (approximately 0.69 W @4.2K). The 3W1-SCW was set to operate at 2.49 T and has been operating for more than seven months. Three instances of magnet quenching occurred during the normal operation. The evaporated helium gas can be recycled to the helium gas recycling system when the pressure in the helium tank is higher than the parameter value (the setpoint of the pressure value is 1.2 bara). The cryogenic system can be recovered within 4 h if sufficient liquid helium is available to inject into the cryostat.

关键词

Keywords

CryostatCommissioningSC WigglerSynchrotron radiation

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