Development of 0.5-5 W, 10K Reverse Brayton Cycle Cryocoolers - Phase II Final Report

Doty, F. D. ; Boman, A. ; Arnold, S. ; Spitzmesser, J. B. ; Jones, D. ; McCree, D. ; Hacker, L. J.

Doty Scientific, Inc., Columbia, SC

关键词: Infrared Devices;    Brayton Cycle;    Cryogenics;    Refrigerators;    Imagery;   

DOI  :  10.2172/899973
RP-ID  :  DOE/ER/82565-1
RP-ID  :  FG02-98ER82565
RP-ID  :  899973

美国|英语

来源: UNT Digital Library

【 摘 要 】

Miniature cryocoolers for the 8-30 K range are needed to provide 0.5-5 w of cooling to high sensitivity detectors (for long-wave-length IR, magnetism, mm-wave, X-ray, dark matter, and possibly y-ray detection) while maintaining low mass, ultra-low vibration, and good efficiency. This project presents a new approach to eliminating the problems normally encountered in efforts to build low-vibration, fieldable, miniature cryocoolers. Using the reverse Brayton Cycle (RBC), the approach applies and expands on existing spinner technology previously used only in Nuclear Magnetic Resonance (NMR) probes.