DocumentCode
2629172
Title
Polarization phenomena in TlBr detectors
Author
Hitomi, Keitaro ; Kikuchi, Yohei ; Shoji, Tadayoshi ; Ishii, Keizo
Author_Institution
Department of Electronics and Intelligent Systems, Tohoku Institute of Technology, Sendai 982-8577, Japan
fYear
2008
fDate
19-25 Oct. 2008
Firstpage
181
Lastpage
184
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 temporary. No polarization phenomena were observed in Tl/TlBr/Tl detectors at room temperature. The detector exhibited stable spectral performance for 24 hours.
Keywords
Degradation; Detectors; Electrodes; Gold; Leak detection; Leakage current; Polarization; Stability; Temperature; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location
Dresden, Germany
ISSN
1095-7863
Print_ISBN
978-1-4244-2714-7
Electronic_ISBN
1095-7863
Type
conf
DOI
10.1109/NSSMIC.2008.4775149
Filename
4775149
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