• DocumentCode
    1299426
  • Title

    Polarization Phenomena in TlBr Detectors

  • Author

    Hitomi, Keitaro ; Kikuchi, Yohei ; Shoji, Tadayoshi ; Ishii, Keizo

  • Author_Institution
    Dept. of Electron. & Intell. Syst., Tohoku Inst. of Technol., Sendai, Japan
  • Volume
    56
  • Issue
    4
  • fYear
    2009
  • Firstpage
    1859
  • Lastpage
    1862
  • Abstract
    A comparison of long-term stabilities of TlBr detectors with Au and Tl electrodes was performed in this study, in order to reveal polarization phenomena in TlBr detectors. Au/TlBr/Au detectors exhibited polarization phenomena at room temperature, observed as degradation of spectral performance and reduction of leakage current with elapsed time. Applying reverse bias voltage to the detectors recovered the detector performance temporarily. No polarization phenomena were observed in Tl/TlBr/Tl detectors at room temperature. The detector exhibited stable spectral performance for 24 hours.
  • Keywords
    electrodes; hole mobility; leakage currents; semiconductor counters; Au electrode; Au-TlBr-Au; Tl electrode; Tl-TlBr-Tl; TlBr detectors; hole mobility; leakage current; polarization phenomena; temperature 293 K to 298 K; time 24 hour; Degradation; Detectors; Electrodes; Gold; Leak detection; Leakage current; Polarization; Stability; Temperature; Voltage; Gamma-ray detectors; semiconductor detectors;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.2009.2013349
  • Filename
    5204635
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1299426