Development of 30mW@4K hybrid J-T cooler for space application

Yuexue Ma; Jia Quan; Yanjie Liu; Juan Wang; Jianguo Li; Hai Jin; Ziyao Liu; Jingtao Liang

doi:10.1117/12.2562104

13 December 2020 Development of 30mW@4K hybrid J-T cooler for space application

Yuexue Ma, Jia Quan, Yanjie Liu, Juan Wang, Jianguo Li, Hai Jin, Ziyao Liu, Jingtao Liang

Proceedings Volume 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV; 114513P (2020) https://doi.org/10.1117/12.2562104
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

In the area of space astronomy, some electronic detectors should be cooled to liquid helium temperature level to improve their sensitivity and reduce the background noise. A hybrid J-T cooler has been developed for future space application by our laboratory. The J-T loop is precooled by two-stage thermally coupled pulse tube cooler. There is no moving part at low temperature in this system which features low vibration electromagnetic interference. The hybrid J-T cooler has been experimental tested and cooling capacity of about 34.5mW@4.32K is achieved when supply pressure is 1.97MPa. Besides, when sufficient precooling power is provided for the J-T loop cooling capacity of 102.3mW at 5.02K is achieved. In this experiment, three oil free linear compressors are used to drive the J-T loop and a GM cooler is used to provide the precooling power for the J-T cooler. This J-T cooler will be the potential cryocooler for the future space detectors requiring cooling power of 100mW at < 6K.

Citation Download Citation

Yuexue Ma, Jia Quan, Yanjie Liu, Juan Wang, Jianguo Li, Hai Jin, Ziyao Liu, and Jingtao Liang "Development of 30mW@4K hybrid J-T cooler for space application", Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 114513P (13 December 2020); https://doi.org/10.1117/12.2562104

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