Developments in Turbo Brayton technology for low temperature applications

✍ Scribed by W.L Swift; M.V Zagarola; G.F Nellis; J.A McCormick; H Sixsmith; J.A Gibbon

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 468 KB
• Volume: 39
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/s0011-2275(99)00117-4

✦ Synopsis

A single stage reverse Brayton cryocooler using miniature high-speed turbomachines recently completed a successful space shuttle test ¯ight demonstrating its capabilities for use in cooling the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope (HST). The NICMOS CryoCooler (NCC) is designed for a cooling load of about 8 W at 65 K, and comprises a closed loop cryocooler coupled to an independent cryogenic circulating loop. Future space applications involve instruments that will require 5±200 mW of cooling at temperatures between 4 and 10 K. This paper discusses the extension of Turbo Brayton technology to meet these requirements.