NDLI: An Optimal Filter Based Algorithm for PET Detectors With Digital Sampling Front-End

Content Provider	IEEE Xplore Digital Library
Author	Joly, B. Montarou, G. Lecoq, J. Bohner, G. Crouau, M. Brossard, M. Vert, P.-E.
Copyright Year	1963
Abstract	With the development of fast sampling electronics, digital pulse processing techniques for PET signals are raising interest. The optimal filter (OF) algorithm reconstructs pulse amplitude and time by two weighted sums, making it compatible with real-time implementation. The filters are usually optimized for stationary noise. We developed and tested a method to optimize the filters for the nonstationary noise of scintillation pulses. It is based on offline statistical analysis of coincident waveforms that could be applied during the system initialization phase. Experimental tests were done on a coincidence setup with two detection blocks composed of a fast inorganic scintillator ( LaBr₃ or LYSO) coupled to a photodetector (APD or PMT), preamplifiers and prefilters. The signals were sampled at high rate (250 MHz for APDs, 5 GHz for PMTs) and treated offline. The optimization of the filter coefficients for nonstationary noise yielded a significant improvement compared to those optimized for stationary noise, resp. 368 ps and 632 ps fwhm in coincidence for the LYSO-PMT setup. However, little improvement was achieved compared to leading-edge (DLED) and constant fraction (DCFD) discriminator algorithms (resp. 419 ps, 435 ps fwhm). Indeed, the adjustment of thresholds can be interpreted as an optimization for nonstationary noise. Yet, OF is more robust to white noise than DLED or DCFD. The applicability to PET is discussed.
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	63
Ending Page	70
Page Count	8
File Size	446713
File Format	PDF
ISSN	00189499
Volume Number	57
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Digital filters Positron emission tomography Sampling methods Signal sampling Testing Signal processing Optimization methods Statistical analysis Solid scintillation detectors Photodetectors timing algorithm Digital sampling front-end optimal filtering parameter estimation Time Of Flight (TOF) PET
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

Test and optimization of timing algorithms for PET detectors with digital sampling front-end

Advantages of digitally sampling scintillation pulses in pileup processing in PET

Digital timing in positron emission tomography

Potentials of Digitally Sampling Scintillation Pulses in Timing Determination in PET

Digital timing with non-stationary noise optimal filter algorithm for LSO/APD detectors

Optimization of digital time pickoff methods for LaBr-SiPM TOF-PET detectors

Timing Improvement by Low-Pass Filtering and Linear Interpolation for the LabPET Scanner

Advantages of Digitally Sampling Scintillation Pulses in Pileup Processing in PET

An Accurate Timing Alignment Method With Time-to-Digital Converter Linearity Calibration for High-Resolution TOF PET

An Optimal Filter Based Algorithm for PET Detectors With Digital Sampling Front-End

Similar Documents

Test and optimization of timing algorithms for PET detectors with digital sampling front-end

Advantages of digitally sampling scintillation pulses in pileup processing in PET

Digital timing in positron emission tomography

Potentials of Digitally Sampling Scintillation Pulses in Timing Determination in PET

Digital timing with non-stationary noise optimal filter algorithm for LSO/APD detectors

Optimization of digital time pickoff methods for LaBr-SiPM TOF-PET detectors

Timing Improvement by Low-Pass Filtering and Linear Interpolation for the LabPET Scanner

Advantages of Digitally Sampling Scintillation Pulses in Pileup Processing in PET

An Accurate Timing Alignment Method With Time-to-Digital Converter Linearity Calibration for High-Resolution TOF PET

An Optimal Filter Based Algorithm for PET Detectors With Digital Sampling Front-End