• DocumentCode
    814016
  • Title

    A Ge(Li) Spectrometer for Gamma Ray Astronomy

  • Author

    Hicks, Donovan Blake ; Jacobson, Allan S.

  • Author_Institution
    Ball Brothers Research Corporation Boulder, Colorado 80 302
  • Volume
    21
  • Issue
    1
  • fYear
    1974
  • Firstpage
    169
  • Lastpage
    177
  • Abstract
    A space-borne instrument to measure the spectral and temporal characteristics of astronomical ¿-rays in the .05 to 10 Mev energy range is described. The spectrometer consists of four 60 cc Ge(Li) detectors with an energy resolution of 2.5 Kev (FWHM) at 1.33 Mev. The Ge(Li) detectors are actively shielded with CsI(Na) for angular collimation and background reduction. Cooling of the Ge(Li) detectors to 88°K for orbital lifetimes of up to two years is provided by a two-stage solid subliming refrigerator.
  • Keywords
    Astronomy; Collimators; Cooling; Detectors; Energy measurement; Energy resolution; Extraterrestrial measurements; Instruments; Solids; Spectroscopy;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.1974.4327458
  • Filename
    4327458
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=814016