NDLI: Least squares arrival time estimators for single and piled up scintillation pulses

Content Provider	IEEE Xplore Digital Library
Author	Petrick, N. Hero III, A.O. Clinthorne, N.H. Rogers, W.L. Slosar, J.M.
Copyright Year	1963
Abstract	A new time arrival estimator is developed for the detection of gamma rays using scintillation detectors. The estimator structure reduces to a weighted least squares (WLS) estimate of the arrival time and is found to be the optimal estimator for scintillation pulses. This WLS estimator is applied to scintillation type pulses with fast rise times and exponential decays. The timing resolution is calculated and compared to the resolution of leading edge and constant fraction triggers for a Burle 8850 photomultiplier tube, and to the Cramer-Rao lower bound on estimator performance. The WLS estimator outperforms these conventional arrival time estimators and has the added ability of simultaneously estimating the arrival times of multiple overlapping pulses. This allows for piled up pulses to be effectively separated permitting their individual energies to be estimated.<>
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	1026
Ending Page	1030
Page Count	5
File Size	445287
File Format	PDF
ISSN	00189499
Volume Number	40
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Least squares approximation Optical pulses Timing Solid scintillation detectors Gamma ray detection Gamma ray detectors Gamma rays Signal resolution Photomultipliers Nuclear medicine
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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