NDLI: Real time digital signal processing implementation for an APD-based PET scanner with phoswich detectors

Content Provider	IEEE Xplore Digital Library
Author	Fontaine, R. Tetrault, M.-A. Belanger, F. Viscogliosi, N. Himmich, R. Michaud, J.-B. Robert, S. Leroux, J.-D. Semmaoui, H. Berard, P. Cadorette, J. Pepin, C.M. Lecomte, R.
Copyright Year	1963
Abstract	Recent progress in advanced digital signal processing provides an opportunity to expand the computation power required for real time extraction of event characteristics in avalanche photodiode (APD)-based Positron Emission Tomography (PET) scanners. These developments are made possible by a highly parallel data acquisition (DAQ) system based on an integrated analog front-end and a high-speed fully digital signal processing section that directly samples the output of each preamplifier with a free-running, off-the-shelf, 45-MHz analog-to-digital converter that feeds the sampled data into a field programmable gate array (FPGA) VirtexII PRO from Xilinx. This FPGA features /spl sim/ 31 000 logic cells and two PowerPC processors, which allows up to 64 channels to be processed simultaneously. Each channel has its own digital signal processing chain including a trigger, a baseline restorer and a timestamp algorithm. Various timestamp algorithms have been tested so far, achieving a coincidence timing resolution of 3.2-ns full-width at half-maximum (FWHM) for APD coupled to Lutetium Oxyorthosilicate (APD-LSO) and 11.4-ns FWHM for APD coupled to Bismuth Germanium Oxide (APD-BGO) detectors, respectively. Channels are then multiplexed into a DSP processor from Texas Instruments for crystal identification by an ARMAX recursive algorithm borrowed from identification and vector quantization theory. The system can sustain an event rate of 10 000 events/s/channel without electronic dead time.
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	784
Ending Page	788
Page Count	5
File Size	1189234
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	Digital signal processing Positron emission tomography Field programmable gate arrays Signal processing algorithms Detectors Data acquisition Data mining Avalanche photodiodes Preamplifiers Analog-digital conversion real time digital signal processing Avalanche photodiodes (APDs) field programmable gate array (FPGA) Positron Emission Tomography (PET)
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
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
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Time Determination of BGO-APD Detectors by Digital Signal Processing for Positron Emission Tomography

A sampling ADC data acquisition system for positron emission tomography

The Hardware and Signal Processing Architecture of LabPET™, a Small Animal APD-Based Digital PET Scanner

Digital Signal Processing Techniques to Improve Time Resolution in Positron Emission Tomography

Firmware Upgrade for the Data Acquisition System of the LabPET Small Animal PET Scanner

Time Discrimination Techniques Using Artificial Neural Networks for Positron Emission Tomography

Design of a Real-Time FPGA-Based Data Acquisition Architecture for the LabPET II: An APD-Based Scanner Dedicated to Small Animal PET Imaging

APD performance in light sharing PET applications

Wavelets-Based Crystal Identification of Phoswich Detectors for Small-Animal PET

Real time digital signal processing implementation for an APD-based PET scanner with phoswich detectors

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