Title :
TlBr Gamma-Ray Spectrometers Using the Depth Sensitive Single Polarity Charge Sensing Technique
Author :
Hitomi, Keitaro ; Onodera, Toshiyuki ; Shoji, Tadayoshi ; Hiratate, Yukio ; He, Zhong
Author_Institution :
Dept. of Electron. & Intell. Syst., Tohoku Inst. of Technol., Sendai
fDate :
6/1/2008 12:00:00 AM
Abstract :
Pixellated thallium bromide (TlBr) gamma-ray spectrometers were fabricated and evaluated with the depth sensitive single polarity charge sensing technique. The detectors exhibited energy resolutions of 2.22%, 1.22% and 1.11% for 356 keV, 662 keV and 1.33 MeV, respectively, at room temperature. Direct measurements of electron mobility-lifetime products in TlBr detectors were performed. An electron mobility-lifetime product of 4.1times10-3 cm2/V was obtained from a TlBr detector.
Keywords :
gamma-ray spectrometers; position sensitive particle detectors; semiconductor counters; TlBr gamma-ray spectrometers; depth sensitive single polarity charge sensing technique; electron mobility-lifetime product measurements; pixellated thallium bromide gamma-ray spectrometers; position-sensitive detector; Cathodes; Crystalline materials; Electron mobility; Energy resolution; Furnaces; Helium; Purification; Radiation detectors; Spectroscopy; Temperature; Position-sensitive detector; semiconductor detector; thallium bromide;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2008.924086
