TY - JOUR
T1 - Improvement of energy resolutions in TlBr detectors
AU - Hitomi, Keitaro
AU - Kikuchi, Yohei
AU - Shoji, Tadayoshi
AU - Ishii, Keizo
PY - 2009/8/1
Y1 - 2009/8/1
N2 - Improvement of energy resolutions in thallium bromide (TlBr) detectors was achieved by using a gated integrator in the post amplifier stage. An energy resolution of 4.8% FWHM at 662 keV was obtained from a TlBr detector 1 mm thick at room temperature. The depth of interaction (DOI) in TlBr detectors for incident gamma-rays was determined by taking the Gaussian shaping amplifier signal to gated integrator signal ratio. The energy resolution of the detector was improved from 4.8% to 3.8% FWHM by implementation of the depth correction. The device exhibited an energy resolution of 3.3% FWHM at 662 keV by selecting gamma-ray interaction events in the detector. Long-term stability of a TlBr detector 0.36 mm thick with Tl electrode was also evaluated at room temperature. The detector operated stably for 600 h without significant performance degradations.
AB - Improvement of energy resolutions in thallium bromide (TlBr) detectors was achieved by using a gated integrator in the post amplifier stage. An energy resolution of 4.8% FWHM at 662 keV was obtained from a TlBr detector 1 mm thick at room temperature. The depth of interaction (DOI) in TlBr detectors for incident gamma-rays was determined by taking the Gaussian shaping amplifier signal to gated integrator signal ratio. The energy resolution of the detector was improved from 4.8% to 3.8% FWHM by implementation of the depth correction. The device exhibited an energy resolution of 3.3% FWHM at 662 keV by selecting gamma-ray interaction events in the detector. Long-term stability of a TlBr detector 0.36 mm thick with Tl electrode was also evaluated at room temperature. The detector operated stably for 600 h without significant performance degradations.
KW - Gamma-ray spectrometers
KW - Semiconductor detectors
KW - Thallium bromide
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U2 - 10.1016/j.nima.2009.03.129
DO - 10.1016/j.nima.2009.03.129
M3 - Article
AN - SCOPUS:67650127498
SN - 0168-9002
VL - 607
SP - 112
EP - 115
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
ER -