On-Orbit Longevity of Cryogenic Cooling Systems

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: FA9453-04-C-0319
Agency Tracking Number: 031-0955
Amount: $741,492.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: MDA03-062
Solicitation Number: 2003.1
Small Business Information
60 Route 101A, Amherst, NH, 03031
DUNS: 959822826
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Stephen DiPietro
 President/CEO
 (603) 732-0077
 sputboy@rcn.com
Business Contact
 John Corey
Title: CFO
Phone: (603) 732-0079
Email: jcorey@choiceonemail.com
Research Institution
N/A
Abstract
Exothermics and their Phase 2 partner Northrop Grumman Space Technology seek to increase the reliability, producibility and performance of cryocoolers which cool Long and Very Long Wave Infrared (LWIR and VLWIR) focal planes in space surveillance systems. The materials proposed for investigation address the regenerator, a critical thermodynamic component in pulse tube and Stirling cryocoolers. In view of the need for enhanced cryocooler performance in future ballistic missile intercept scenarios, this Phase 2 SBIR will endeavor to further extend NGST's record of reliability and producibility to the lower temperatures required by future LWIR and VLWIR sensors. One of the main goals of the proposed Phase 2 SBIR effort is to examine methods for producing forms of the rare earth metals and alloys that will permit exploitation of their anticipated cryogenic performance potential at temperatures below 35K, particularly when compared to other more conventional approaches involving the use of lead screen or rare earth materials in the form of shot or spherical powders. Development and optimization of these materials will extend cryocooler performance for near term HgCdTe LWIR (35K) focal planes to wavelengths of ~ 15µ and enable Si:As VLWIR (10K) focal plane operation to wavelengths of ~ 26µ.

* Information listed above is at the time of submission. *

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