Tactical 4 K Cryocooler: Concept Demonstration

Period of Performance: 09/09/2011 - 03/09/2013


Phase 2 STTR

Recipient Firm

Iris Technology Corporation
P.O. Box 5838
Irvine, CA 92616
Principal Investigator
Firm POC

Research Institution

Georgia Institute of Technology
225 North Ave NW
Atlanta, GA 30332
Institution POC


The primary objective of Phase II is to obtain experimental test data to substantiate the analytic predictions developed during Phase I (4.0 W at 60.0K, 0.30 W at 11.5K, and 0.196W at 4.0K for 800 W of input pressure-volume (PV) power). This will be accomplished by leveraging a new purpose-built pulse tube cold head with existing cryocooler assets to be provided by the United States Air Force. This creative programmatic approach makes possible the build of a complete three-stage Stirling/Pulse Tube/Pulse Tube cryocooler on a limited budget. Successful build and test of this cryocooler will represent the first build of this type of three-stage cryocooler, thus establishing the viability of the concept, and it will provide an invaluable tool for model correlation to inform productized versions to follow.