Polarization phenomena in TlBr detectors

Keitaro Hitomi, Yohei Kikuchi, Tadayoshi Shoji, Keizo Ishii

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A comparison of long-term stabilities f 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.

Original languageEnglish
Article number5204635
Pages (from-to)1859-1862
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume56
Issue number4
DOIs
Publication statusPublished - 2009 Aug 1

Keywords

  • Gamma-ray detectors
  • Semiconductor detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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