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Two-stage pulse tube refrigerator in an entire coaxial configuration.

Author(s) : KOETTIG T., MOLDENHAUER S., NAWRODT R., et al.

Type of article: Article

Summary

The authors introduce a new kind of two-stage pulse tube refrigerators. The chosen entire coaxial configuration combines the advantages of the coaxial design with the two-stage pulse tube concept. Lead coated screens build the inhomogeneous regenerator matrix of the second stage. Without any rare earth compounds the refrigerator reaches a no load temperature of 6.6 K at the second stage cold tip. The active type of phase shifting is generated by a rotary valve combined with two needle valves at the hot end of each pulse tube (compressor Leybold RW 6000, 6 kW input power). This paper focuses on the design parameters and first performance measurements. [Reprinted with permission from Elsevier. Copyright, 2006].

Details

  • Original title: Two-stage pulse tube refrigerator in an entire coaxial configuration.
  • Record ID : 2007-0460
  • Languages: English
  • Source: Cryogenics - vol. 46 - n. 12
  • Publication date: 2006/12

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