NDLI: Spectroscopic performance of thick HgI/sub 2/ detectors

Content Provider	IEEE Xplore Digital Library
Author	Meng, L.J. He, Z. Alexander, B. Sandoval, J.
Copyright Year	1963
Abstract	This paper presents the spectroscopic performance of two newly developed pixelated HgI/sub 2/ detectors. These detectors are 1/spl times/1/spl times/0.814 cm/sup 3/ and 1/spl times/1/spl times/1.016 cm/sup 3/ in size. Each detector has four closely packed 1/spl times/1 mm/sup 2/ anode pixels at the center of one of the 1/spl times/1 cm/sup 2/ surfaces. These anode pixels are surrounded by a large anode. All results presented here are based on events from a sub-volume underneath the anode pixels. In these detectors, signals were read out by a discrete electronics based on multiple A-250 pre-amplifiers and a digital oscilloscope for sampling pulse waveforms. Depth sensing technique was used to correct the depth-dependent variation in photopeak amplitude. Main results presented are: (1)energy resolutions of 0.85 /spl sim/ 1.3% have been achieved on these detectors; (2) the electron mobility-lifetime product was measured to be /spl sim/1/spl times/10/sup -2/ cm/sup 2//V and the measured electron lifetime was /spl sim/200 /spl mu/s and (3) variation in electron drifting properties under different anode pixels were observed. Significant non-uniformity in internal electric field strength was also experimentally demonstrated.
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	1706
Ending Page	1712
Page Count	7
File Size	617517
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	Spectroscopy Detectors Anodes Energy resolution Cathodes Electron mobility Semiconductor materials Event detection Oscilloscopes Energy measurement Spectroscopic Performance HgI
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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