Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (12): 178 doi: 10.1007/s41365-019-0700-5

• ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Cryogenic system design for HIAF iLinac

Xiao-Fei Niu1,2 • Feng Bai2 • Xian-Jin Wang2 • Jun-Hui Zhang2 • Xiao-Hong Guo2 • Da-Ming Sun1   

  1. 1 Institute of Refrigeration and Cryogenic, Zhejiang University, Hangzhou 310027, China
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2019-03-25 Revised:2019-09-09 Accepted:2019-09-19
  • Contact: Da-Ming Sun
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Xiao-Fei Niu, Feng Bai, Xian-Jin Wang, Jun-Hui Zhang, Xiao-Hong Guo, Da-Ming Sun. Cryogenic system design for HIAF iLinac.Nuclear Science and Techniques, 2019, 30(12): 178     doi: 10.1007/s41365-019-0700-5

Abstract: A helium cryogenic system is designed by the Institute of Modern Physics, Chinese Academy of Sciences, to supply different cooling powers to the cryomodules of ion-Linac (iLinac) accelerator, which serves as the injector of the High Intensity Heavy-Ion Accelerator Facility project. The iLinac is a superconducting heavy-ion accelerator approximately 100 m long and contains 13 cryomodules cooled by superfluid helium. This article describes the cryogenic system design of the iLinac accelerator. The requirements of the cryogenic system, such as cooling mode, refrigeration temperature, operating pressure and pressure stability, are introduced and described in detail. In addition, heat loads from different sources are analyzed and calculated quantitatively. An equivalent cooling capacity of 10 kW at 4.5 K was determined for the cryogenic system according to the total heat load. Furthermore, a system process design was conducted and analyzed in detail. Further, the system layout and the main equipment are presented.

Key words: Ion-Linac (iLinac) accelerator, Superfluid liquid helium, Cryogenic system, Cryomodule