• DocumentCode
    1224512
  • Title

    Low capacitance large volume shaped-field germanium detector

  • Author

    Luke, P.N. ; Goulding, F.S. ; Madden, N.W. ; Pehl, R.H.

  • Author_Institution
    Lawrence Berkeley Lab., CA, USA
  • Volume
    36
  • Issue
    1
  • fYear
    1989
  • fDate
    2/1/1989 12:00:00 AM
  • Firstpage
    926
  • Lastpage
    930
  • Abstract
    A large-volume (150 cm3) germanium detector with a full-depletion capacitance of only ≈1 pf has been fabricated. The effect of impurity space charge was utilized to obtain an appropriate electric field distribution in the detector so that carriers are collected on a small-area electrode. Detectors based on this principle are capable of very-low-noise operation and have immediate applications in experiments for the direct detection of dark matter. Detector pulse shapes and carrier-trapping effects were also examined for possible applications involving higher energy radiations
  • Keywords
    semiconductor counters; 1 pF; Ge; carrier-trapping effects; dark matter; direct detection; full-depletion capacitance; impurity space charge; large volume shaped-field germanium detector; pulse shapes; very-low-noise operation; Capacitance; Coaxial components; Detectors; Electrodes; Electrons; Geometry; Germanium; Kinetic energy; Shape; Spectroscopy;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/23.34577
  • Filename
    34577
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1224512