Title :
Temperature Dependence in the Long-Term Stability of the TlBr Detector
Author :
Da Costa, Fábio Eduardo ; De Mesquita, Carlos Henrique ; Hamada, Margarida Mizue
Author_Institution :
IPEN/CNEN-SP, Cidade Univ., Sao Paulo, Brazil
Abstract :
In this paper, TlBr detectors with three-electrodes were prepared and their long term stability evaluated as a function of the temperature. Systematic measurements of counting rate were carried out to observe the random pulse formation, due to the polarization effect. Three-electrode detectors presented stability of about 112 h at near room temperature and more than 325 h at 0degC. Although the three-electrode detector presents a better performance compared to the two-electrode detector, its stability has been still dependent on the temperature.
Keywords :
electrodes; polarisation; semiconductor counters; TlBr detector; counting rate; long term stability; long-term stability; polarization effect; random pulse formation; temperature 0 C; temperature dependence; three-electrode detectors; time 112 h; Crystals; Detectors; Electrodes; Face detection; Optical polarization; Preamplifiers; Pulse measurements; Stability; Temperature dependence; Temperature measurement; Detector stability; Thallium bromide; polarization; semiconductor detector;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2009.2024678
