Title :
TlBr/sub x/I/sub 1-x/ photodetectors for scintillation spectroscopy
Author :
Shah, K.S. ; Lund, J.C. ; Olschner, F. ; Zhang, J. ; Moy, L.P. ; Squillante, M.R. ; Moses, W.W. ; Derenzo, S.E.
Author_Institution :
Radiatian Monitoring Devices Inc., Watertown, MA, USA
Abstract :
This paper reports on the evaluation of photodetectors fabricated from a ternary semiconductor, TlBr/sub x/I/sub 1-x/ for application in scintillation spectroscopy. These photodetectors are characterized in terms of their resistivity, charge transport parameters, quantum efficiency as a function of wavelength, and finally their performance as scintillation spectrometers. The details about TlBr/sub x/I/sub 1-x/ purification, crystal growth and device fabrication are also addressed.<>
Keywords :
crystal growth from melt; crystal purification; electrical conductivity; photodetectors; solid scintillation detectors; tellurium compounds; ternary semiconductors; Tl-Br-I; TlBr/sub x/I/sub 1-x/ photodetectors; charge transport; crystal growth; fabrication; purification; quantum efficiency; resistivity; scintillation spectroscopy; Conductivity; Crystalline materials; Fabrication; Photodetectors; Photonic band gap; Photonic crystals; Purification; Semiconductor materials; Solid state circuits; Spectroscopy;
Journal_Title :
Nuclear Science, IEEE Transactions on
