Characterization of TlBr x Cl 1-x crystals for radiation detectors

Toshiyuki Onodera, Keitaro Hitomi, Chikara Onodera, Tadayoshi Shoji, Katsumi Mochizuki

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Thallium bromide chloride (TlBr x Cl 1-x) crystals have been evaluated as a material used for fabrication of room temperature radiation detectors. In this study, TlBr x Cl 1-x crystals with various chlorine (Cl) concentrations were grown by the travelling molten zone method and the detectors were fabricated from the crystals. The optical properties of the crystals were evaluated by measuring the transmittances. The charge transport properties were characterized by the Hecht analysis. The band gap energy of the crystals proportionally increased with Cl concentration. Mobility-lifetime products (μm τ) of the crystals decreased with increasing Cl concentration.

Original languageEnglish
Article number6220884
Pages (from-to)1559-1562
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number4 PART 3
Publication statusPublished - 2012


  • Compound semiconductors
  • semiconductor radiation detectors
  • thallium bromide (TlBr)


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