Development of a Space-Type 4-Stage Pulse Tube Cryocooler for Very Low Temperature

Details Development of a Space-Type 4-Stage Pulse Tube Cryocooler for Very Low Temperature Development of a Space-Type 4-Stage Pulse Tube Cryocooler for Very Low Temperature

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..823..623o&link_type=abstract

ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference - CEC. AIP Conference Proceedings, Volu

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Cryogenics, Refrigerators, Low-Temperature Detectors, And Other Low-Temperature Equipment, Spaceborne And Space Research Instruments, Apparatus, And Components

Scientific paper

The Lockheed Martin Advanced Technology Center (LMATC) has built and tested a 4-stage pulse tube cryocooler, which provides simultaneous cooling at 6 K and 18 K. The cryocooler is designed to meet NASA's cryocooler needs for low temperature, with immediate application to the Terrestrial Planet Finder, Constellation-X, and other future space-science missions. The simplicity with LMATC's approach of the single compressor, coldhead, and electronic controller makes it very appealing for applications requiring high reliability. It further allows the system to be readily modified for different program requirements. The LM pulse tube is a simple 4-stage coldhead with no moving parts, driven by a long-life linear flexure-bearing clearance-seal compressor. The cryocooler is designed to provide 20 mW of cooling at 6 K and 150 mW cooling at 18 K while rejecting heat at 290 K. Performance data is presented, showing excellent cryocooler performance, meeting JPL's cooling requirements, and achieving a no-load temperature below 4 K.
This work was funded by the Jet Propulsion Laboratory's Advanced Cryocooler Technology Development Program (ACTDP), Ron G. Ross, Contract Manager.

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