A study of mK cooling system for space application

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Liubiao, Chen^1 ; Hai, Jin^3 ; Jue, Wang^1^2 ; Changzhao, Pan^1 ; Xianlin, Wu^1^2 ; Wei, Cui^3 ; Yuan, Zhou^1^2 ; Junjie, Wang^1^2

Chinese Academy of Sciences Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing

100190, China^1

University of Chinese Academy of Sciences, Beijing

100049, China^2

Department of Physics and Center for Astrophysics, Tsinghua University, Beijing

100084, China^3

关键词: Adiabatic demagnetization refrigerators;    Candidate models;    Linear compressors;    Preliminary design;    Pulse tube cryocoolers;    Superconducting transition edge sensors;    Test performance;    Thermal compressors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012063/pdf
DOI  :  10.1088/1757-899X/502/1/012063

来源: IOP

【 摘 要 】

Hot Universe Baryon Surveyor (HUBS) is being conceptualized in China as a major X-ray mission for the next decade to look for missing baryons. The superconducting transition-edge sensor is a key technology in HUBS, which needs to be worked at temperatures below 100 mK. In this paper, the HUBS cooling system will be designed and discussed. A 4 K mechanical cryocooler combined with adiabatic demagnetization refrigerator (ADR) will be employed in the preliminary design. Some test performance of two candidate models for precooling stage, the self-developed pulse tube cryocooler driven by linear compressor or thermal compressor, will be presented.Published under licence by IOP Publishing Ltd.