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Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement

High pressure xenon ionization chamber detectors are possible alternatives to traditional thallium doped sodium iodide (NaI(Tl)) and hyperpure germanium as gamma spectrometers in certain applications. Xenon detectors incorporating a Frisch grid exhibit energy resolutions comparable to cadmium/zinc/t...

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Autor principal: Troyer, G L
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:http://cds.cern.ch/record/747956
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author Troyer, G L
author_facet Troyer, G L
author_sort Troyer, G L
collection CERN
description High pressure xenon ionization chamber detectors are possible alternatives to traditional thallium doped sodium iodide (NaI(Tl)) and hyperpure germanium as gamma spectrometers in certain applications. Xenon detectors incorporating a Frisch grid exhibit energy resolutions comparable to cadmium/zinc/telluride (CZT) (e.g. 2% (at) 662keV) but with far greater sensitive volumes. The Frisch grid reduces the position dependence of the anode pulse risetimes, but it also increases the detector vibration sensitivity, anode capacitance, voltage requirements and mechanical complexity. We have been investigating the possibility of eliminating the grid electrode in high-pressure xenon detectors and preserving the high energy resolution using electronic risetime compensation methods. A two-electrode cylindrical high pressure xenon gamma detector coupled to time-to-amplitude conversion electronics was used to characterize the pulse rise time of deposited gamma photons. Time discrimination was used to characterize the pulse rise time versus photo peak position and resolution. These data were collected to investigate the effect of pulse rise time compensation on resolution and efficiency.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-7479562019-09-30T06:29:59Zhttp://cds.cern.ch/record/747956engTroyer, G LPulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution EnhancementDetectors and Experimental TechniquesHigh pressure xenon ionization chamber detectors are possible alternatives to traditional thallium doped sodium iodide (NaI(Tl)) and hyperpure germanium as gamma spectrometers in certain applications. Xenon detectors incorporating a Frisch grid exhibit energy resolutions comparable to cadmium/zinc/telluride (CZT) (e.g. 2% (at) 662keV) but with far greater sensitive volumes. The Frisch grid reduces the position dependence of the anode pulse risetimes, but it also increases the detector vibration sensitivity, anode capacitance, voltage requirements and mechanical complexity. We have been investigating the possibility of eliminating the grid electrode in high-pressure xenon detectors and preserving the high energy resolution using electronic risetime compensation methods. A two-electrode cylindrical high pressure xenon gamma detector coupled to time-to-amplitude conversion electronics was used to characterize the pulse rise time of deposited gamma photons. Time discrimination was used to characterize the pulse rise time versus photo peak position and resolution. These data were collected to investigate the effect of pulse rise time compensation on resolution and efficiency.oai:cds.cern.ch:7479562000-08-25
spellingShingle Detectors and Experimental Techniques
Troyer, G L
Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title_full Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title_fullStr Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title_full_unstemmed Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title_short Pulse Rise Time Characterization of a High Pressure Xenon Gamma Detector for use in Resolution Enhancement
title_sort pulse rise time characterization of a high pressure xenon gamma detector for use in resolution enhancement
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/747956
work_keys_str_mv AT troyergl pulserisetimecharacterizationofahighpressurexenongammadetectorforuseinresolutionenhancement