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Development of a 0.5 W/40 K pulse tube cryocooler for an infrared detector.

Author(s) : WANG G. P., CAI J. H., LI N., et al.

Summary

A Stirling-type pulse tube cryocooler (PTC) has been developed to provide cryogenic cooling for very long wavelength infrared detectors such as GaAs/AlGaAs quantum-well infrared photodetectors that require the cooling power of 0.3 W at 40 K and are sensitive to vibrations. The U-shape prototype cryocooler driven by a flexure bearing compressor is optimized with an inertance tube and a double-inlet compound configuration. A cooling performance of 420 mW at 40 K has been achieved with 240 W electrical power input at a rejection temperature of 290 K, provided by water cooling. Several matching experiments between the PTC and the infrared detectors have been performed. The results of these experiments show that the infrared focal plane array detectors can work at 38.5 K with the single-stage Stirling-type pulse tube cryocooler.

Details

  • Original title: Development of a 0.5 W/40 K pulse tube cryocooler for an infrared detector.
  • Record ID : 2008-1189
  • Languages: English
  • Publication date: 2006/06/14
  • Source: Source: Proc. 14th int. Cryocooler Conf., Annapolis, MD
    6 p.; fig.; tabl.; 5 ref.

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