Title :
HTS microwave devices and subsystems with pulse tube refrigerators
Author :
Yusheng He ; Yuan Zhou ; Jingtao Liang ; Hong Li ; Luwei Yang ; Wenxiu Zhu ; Jinghui Cai ; Aisheng He ; Zhonglin Gong ; Peiheng Wu ; Yijun Feng ; Button, T.W. ; Smith, P.A. ; Lancaster, M.J. ; Wellhofer, F. ; Gough, C.E.
Author_Institution :
Cryogenic Lab., Acad. Sinica, Beijing, China
fDate :
6/1/1999 12:00:00 AM
Abstract :
Two new types of pulse tube refrigerators with optimized cooling power of 6 W at 77 K have been designed and fabricated. Experiments show that vibration of the pulse tube refrigerators is at least an order of magnitude smaller than that of Stirling coolers. Two microwave devices, a HTS cavity and a HTS miniature lumped band-stop filter, were integrated with the refrigerators and operated successfully, which demonstrated the potential application of these integrated devices and the refrigerator as practical HTS sub-systems.
Keywords :
high-temperature superconductors; refrigeration; superconducting microwave devices; vibrations; 6 W; 77 K; HTS microwave device; cavity resonator; cryocooler; lumped band-stop filter; pulse tube refrigerator; vibration; Cooling; Electromagnetic heating; High temperature superconductors; Microwave devices; Microwave filters; Orifices; Refrigerators; Superconducting microwave devices; Valves;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
