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CLOSED CYCLE CRYOCOOLER FOR LOW TEMPERATURE ELECTRONICS CIRCUITS: COLD END TEST.

Author(s) : PIRTLE F. W.

Type of article: Periodical article

Summary

A FABRICATED COLD END INCLUDING A METALLIC COATING TO PREVENT HELIUM PERMEATION AND A FABRICATED DIE POST DISPLACER SUPPORT BEARING WERE COMBINED WITH A COMPRESSOR AND MOTOR. THERMODYNAMIC TESTS WERE CONDUCTED TO DETERMINE THE LOWEST TEMPERATURE OF THE 4TH (COLDEST) STAGE AS A FUNCTION OF OPERATING SPEED, HELIUM CHARGE PRESSURE, 4TH STAGE ELECTRICAL HEAT LOAD, AND TRANSFER TUBE DIAMETER. RESULTS INDICATE A LOW TEMPERATURE LIMIT OF APPROXIMATELY 95 K WITH THE CURRENT TEST HARDWARE. ALTHOUGH THIS REPRESENTS AN IMPROVEMENT FROM 122 K DURING THE PROGRAM, A RESIZING WILL BE NECESSARY TO REACH 10 K. (CRYOG. INF. REP., US., 22, N 5, 1984/05, 16, 7.

Details

  • Original title: CLOSED CYCLE CRYOCOOLER FOR LOW TEMPERATURE ELECTRONICS CIRCUITS: COLD END TEST.
  • Record ID : 1985-0004
  • Languages: English
  • Source: CTI-Cryog. - 1983.08; 27 p.
  • Publication date: 1983
  • Document available for consultation in the library of the IIR headquarters only.

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