NDLI: Investigation of bias-free positioning estimators for the scintillation cameras

Content Provider	IEEE Xplore Digital Library
Author	Joung, J. Miyaoka, R.S. Kohlmyer, S.G. Lewellen, T.K.
Copyright Year	1963
Abstract	Bias-free positioning estimators for scintillation cameras are investigated. A linear correlation coefficient (LCC) and Chi square error (CSE) method are evaluated with respect to linearity and spatial resolution performance. The LCC method uses correlation information between the true function (i.e., light response function) and measured data in mapping an event characterization vector to the associated position. The CSE method estimates the position where the Chi square error between two functions becomes minimized. In order to determine true statistics as a function of position, the light response function (LRF) was estimated based on sample measurements by using a cubic spline interpolation technique which provides smooth first-order and continuous second-order derivative of the LRF. Both methods have superior linearity properties compared to the weighted centroid. Each method call be considered as a bias-free positioning estimator within the effective field of view of the detector. The spatial resolution performance of the CSE method is /spl sim/7% and /spl sim/16% better than the weighted centroid method for a 16- and 25-mm-thick crystal, respectively. The spatial resolution performance of the LCC method is comparable to that of the weighted centroid method.
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	715
Ending Page	719
Page Count	5
File Size	118088
File Format	PDF
ISSN	00189499
Volume Number	48
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cameras Linearity Spatial resolution Position measurement Maximum likelihood estimation Statistics Spline Interpolation Solid scintillation detectors Nonlinear distortion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Investigation of bias free positioning estimators the scintillation camera

A Hybrid Maximum Likelihood Position Computer for Scintillation Cameras

ML based positioning algorithms for scintillation cameras

Implementation of ML based positioning algorithms for scintillation cameras

Recursive calculation of the two-dimensional maximum likelihood position estimate for a scintillation camera

Improved gamma camera performance using event positioning method based on distance dependent weighting

Investigation of a continuous crystal PSAPD-based gamma camera

Maximum-likelihood principle for determining positions in neutron scintillation detectors

Impact of the Fano Factor on Position and Energy Estimation in Scintillation Detectors

Investigation of bias-free positioning estimators for the scintillation cameras

Similar Documents

Investigation of bias free positioning estimators the scintillation camera

A Hybrid Maximum Likelihood Position Computer for Scintillation Cameras

ML based positioning algorithms for scintillation cameras

Implementation of ML based positioning algorithms for scintillation cameras

Recursive calculation of the two-dimensional maximum likelihood position estimate for a scintillation camera

Improved gamma camera performance using event positioning method based on distance dependent weighting

Investigation of a continuous crystal PSAPD-based gamma camera

Maximum-likelihood principle for determining positions in neutron scintillation detectors

Impact of the Fano Factor on Position and Energy Estimation in Scintillation Detectors

Investigation of bias-free positioning estimators for the scintillation cameras