Pulse rise-time characterization of a high pressure xenon gamma detector for use in resolution enhancement

G. Troyer; B. Keele; G. Tepper

doi:10.1023/a:1010638916467

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 248: Issue 2

Pulse rise-time characterization of a high pressure xenon gamma detector for use in resolution enhancement

Authors:

G. Troyer

G. Troyer Fluor Hanford Inc. Richland WA 99352 USA

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B. Keele

B. Keele KMSL Kennewick WA 99336 USA

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G. Tepper

G. Tepper Virginia Commonwealth University Richmond VA 23284 USA

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Pages:: 267–271

Online Publication Date:: 29 Oct 2004

Publication Date:: 17 May 2001

Article Category:: Research Article

DOI:: https://doi.org/10.1023/a:1010638916467

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Abstract

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% @ 662 keV) but with far greater sensitive volumes. The Frisch grid reduces the position dependence of the anode pulse rise-times, 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 rise-time 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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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)