Title :
Study on instability phenomena in CdTe diode-like detectors
Author :
Farella, I. ; Montagna, G. ; Mancini, A.M. ; Cola, A.
Author_Institution :
CNR/IMM - Unit of Lecce and Dept. of Innovation Engineering, University of Salento, I-73100, Italy
Abstract :
Diode-like In/CdTe/Pt detectors are widely used thanks to their excellent spectroscopic performance. However, when operated at room temperature they are not stable, and their performance degrades with time. The aim of this paper is to investigate in detail the physical mechanisms underlying this effect, by studying the evolution of the space charge inside the detector. Our approach makes use of the Pockels effect, by looking at the evolution of the electric field distribution inside the detector at different temperatures.
Keywords :
Anodes; Degradation; Detectors; Diodes; Polarization; Space charge; Spectroscopy; Stability; Temperature distribution; Voltage;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4775144
