Temperature characteristics of the radiation detector using the TlBr crystals

Author

Shoji, T. ; Hitomi, K. ; Muroi, O. ; Suehiro, T. ; Hiratate, Y.

Author_Institution

Tokyo Inst. of Technol., Japan

Volume

46

Issue

6

fYear

1999

Firstpage

1934

Lastpage

1937

Abstract

The radiation detector was fabricated from the TlBr crystals grown by the TMZ (travelling molten zone) method and the FWHM and transit time of electrons and holes were measured as a function of temperature. The TlBr radiation detector shows the best response characteristics at about 313 K (3.19 K/sup -1/) in cases where holes mainly contributed to the output pulses. However, for temperatures higher than 300 K (3.33 K/sup -1/), the FWHM for /sup 241/Am /spl alpha/-particles (5.48 MeV) becomes worse. An activation energy of about 0.90 eV has been deduced from the resistivity measurement.

Keywords

alpha-particle detection; electric resistance measurement; electrical resistivity; semiconductor counters; /spl alpha/-particles; 300 K; 313 K; 5.48 MeV; FWHM; TMZ method; TlBr; TlBr radiation detector; activation energy; electron transit time; hole transit time; resistivity measurement; response; temperature; travelling molten zone method; Charge carrier processes; Crystalline materials; Crystals; Energy resolution; Fabrication; Leak detection; Leakage current; Radiation detectors; Temperature; Time measurement;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.819257

Filename

819257