NDLI: Novel geometries to reduce the spectroscopic degradation associated with the drift-field of radiation detectors: a Monte Carlo simulation study for xenon-filled counters

Content Provider	IEEE Xplore Digital Library
Author	Neves, P.N.B. Tavora, L.M.N. Conde, C.A.N.
Copyright Year	1963
Abstract	Many radiation detectors make use of an electric field to drift the electrons that result from the absorption of the incoming radiation. Previous simulation studies have demonstrated that, in gas detectors, the fact that charged particles exchange energy with the field leads to a degradation of the system's spectroscopic capabilities. New geometries based on opposite electric fields may reduce this effect, as somehow, a compensation of the energy that is gained/lost from/to the field is achieved. In this communication, the performance of several xenon-based radiation detectors with these novel geometries was assessed using the Monte Carlo code PENELOPE. At energies of 100 and 200 keV, and considering 1, 2, 4 and 8 regions with opposite electric fields, the simulation results indicate that the degradation associated with the drift electric field can be reduced and that this achievement is more noticeable for higher photon energies. In what concerns the absorption of 200 keV photons, when considering a detector with 8 regions, rather than one with a standard geometry, it has been observed a decrease of 81% in the FWHM of the gaussian curve describing the peak that corresponds to full energy absorption events.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	1371
Ending Page	1374
Page Count	4
File Size	123177
File Format	PDF
ISSN	00189499
Volume Number	53
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiation detectors Geometry Spectroscopy Degradation Electrons Absorption Ionization chambers Gas detectors Instruments Monte Carlo methods proportional counters Electric field effects gas detectors ionization chambers nuclear measurements
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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