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Design and performance of the HESSI cryostat.

Author(s) : BOYLE R., BANKS S., CLEVELAND P., et al.

Type of article: Article

Summary

The High Energy Solar Strectroscopic Imager (HESSI) spacecraft, to be launched in July 2000, will be used to observe the sun with the finest angular and energy resolutions ever achieved from a few to hundreds of keV. The spacecraft will use an array of nine Ge detectors, each 7.1 cm in diameter and 8.5 cm long, operating at 75 K. The detectors are mounted in a cryostat on a common coldplate, and cooled by a small Stirling-cycle cryocooler. The paper describes the design of the cryostat, special accommodations for the Ge detectors, interfaces with the cryocooler, and thermal performance of the engineering test unit.

Details

  • Original title: Design and performance of the HESSI cryostat.
  • Record ID : 2001-2611
  • Languages: English
  • Source: Cryogenics - vol. 39 - n. 12
  • Publication date: 1999

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