학술논문
Analysis of Position-Sensitive Capacitive Frisch-Grid TlBr Detectors
Document Type
Conference
Author
Kargar, A.; Bolotnikov, A.; Brown, C. A.; Carini, G. A.; Christian, J.; Cirignano, L.; Dellapenna, A.; Deptuch, G.; Fried, J.; Herrmann, S.; Kim, H.; Pinaroli, G.; Koslowsky, M. R.; Miryala, S.; Raguzin, E.; Deane, C.-R.; Miller, A. L.; Shah, K.; Smith, M. B.; Squillante, M. R.; Squillante, M. S.; Valente, A. J.; Tower, J.; Ogorodnik, Y.; Weststrate, E.; Shah, K. S.
Source
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2021 IEEE. :1-9 Oct, 2021
Subject
Language
ISSN
2577-0829
Abstract
This work presents results from analyzing position-sensitive capacitive Frisch-grid (PS-CFG) TlBr gamma-ray detectors. As a room-temperature semiconductor detector, TlBr exhibits a high atomic number, high density, and low Fano factor compared to other material. The use of the 3D position sensing technique provides information on the crystal uniformity. This technique presents the spatial variation in the histograms of the anode amplitude versus the cathode-to-anode ratio, necessary for depth correction, for detectors fabricated with 5×5×12 mm 3 TlBr crystals at room temperature operating at continuous bias (1.5 kV) over the course of nine months. This work also presents the temperature dependence of the leakage current for a TlBr PS-CFG detector over the temperature range of -20 to +60 °C, which varies from