Improvements and problems of Bridgman-Stockbarger method for fabrication of TlBr single crystal detectors

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • V. Kozlov
  • H. Andersson
  • V. Gostilo
  • M. Kemell
  • P. Kostamo
  • M. S. Kouznetsov
  • M. Leskelä
  • Harri Lipsanen

  • I. S. Lisitsky
  • M. Shorohov
  • H. Sipilä

Research units

  • University of Helsinki
  • Oxford Instruments Analytical Oy
  • Bruker Baltic
  • Institute of Rare Metals

Abstract

TlBr is a promising material for gamma-ray detectors; however, it has crystal quality problems originated from the crystal growth itself and further treatments during detector fabrication. The effect of technological improvements on crystal quality has been studied in this work. Low performance of studied detectors was shown to be associated with residual stress or/and small-angle grain boundaries in these crystals. Several crystals failed as detectors were proved to contain impurities.

Details

Original languageEnglish
Pages (from-to)126-128
Number of pages3
JournalNUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A: ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume607
Issue number1
Publication statusPublished - 1 Aug 2009
MoE publication typeA1 Journal article-refereed

    Research areas

  • Growth from melts, Thallium bromide, X- and gamma-ray solid-state detectors

ID: 5564600