• DocumentCode
    892134
  • Title

    Investigation of a thick Si diode ionization detector at low temperatures for dark matter searches

  • Author

    Spooner, N.J.C. ; Homer, G.J. ; Smith, P.F.

  • Author_Institution
    NPL, Oxford, UK
  • Volume
    40
  • Issue
    2
  • fYear
    1993
  • fDate
    4/1/1993 12:00:00 AM
  • Firstpage
    105
  • Lastpage
    113
  • Abstract
    The sensitivity and charge collection characteristics of a 1-mm-thick commercial Si diode ionization detector for use in a hybrid dark matter detector are described. Particle counting with 57Co and 241Am X-ray sources was used to study the variation in sensitive volume and charge collection as a function of temperature and bias. Operating temperatures down to 30 mK were investigated. At this temperature, full volume sensitivity and a near 100% charge collection was observed at 30 mK, with applied biases at low as 5 V
  • Keywords
    ionisation chambers; semiconductor counters; semiconductor diodes; 1 mm; 30 mK; 5 V; 241Am; 57Co; Si diode ionization detector; X-ray sources; bias voltage; charge collection; dark matter; low temperatures; sensitivity; thick; Detectors; Diodes; Electrons; Energy measurement; Event detection; Extraterrestrial measurements; Ionization; Phonons; Temperature sensors; Thermal resistance;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/23.212325
  • Filename
    212325
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=892134