Pulse tube refrigerators developed for cooling HTS microwave devices

Author

Liang, Jingtao ; He, Yusheng ; Li, Hong ; Yuan Zhou ; Yang, Luwei ; Zhu, Wenxiu ; Cai, Jinghui ; He, Aisheng ; Gong, Zhonglin ; Smith, P.A. ; Button, T.W. ; Lancaster, M.J. ; Porch, A. ; Avenhaus, B. ; Gough, C.E.

Author_Institution

Cryogenic Lab., Acad. Sinica, Beijing, China

fYear

1998

fDate

1998

Firstpage

666

Lastpage

669

Abstract

The pulse tube refrigerator is a competitive new technology for cooling HTS microwave devices because it involves no moving parts at low temperature. A 1.6 W/77 K multi-stage U-shape pulse tube refrigerator driven by a valveless compressor was designed and fabricated. Another coaxial pulse tube refrigerator driven by an air conditioning compressor, with a minimum temperature of 38.4 K and 6 W of cooling power at 77 K, was also developed. Experiments show that vibration of the pulse tube cooler is an order of magnitude smaller than that of Stirling machine. Two HTS microwave devices were integrated with this cooler and operated successfully

Keywords

cooling; high-temperature superconductors; low-temperature production; superconducting microwave devices; 1.6 W; 38.4 K; 6 W; 77 K; HTS microwave device; U-shape pulse tube refrigerator; air conditioning compressor; coaxial pulse tube refrigerator; cooling; pulse tube refrigerator; valveless compressor; vibration; Air conditioning; Coaxial components; Cooling; Helium; High temperature superconductors; Microwave devices; Pulse compression methods; Refrigerators; Superconducting microwave devices; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4308-5

Type

conf

DOI

10.1109/ICMMT.1998.768377

Filename

768377