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A Spartan3E-based low-cost system for gamma-ray detection in small single photon emission computed tomography or positron emission tomography systems

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National Technical University of Athens   

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A Spartan3E-based low-cost system for gamma-ray detection in small single photon emission computed tomography or positron emission tomography systems (EN)
Efthimiou, N (EN)
David, S (EN)
Fysikopoulos, E (EN)
Georgiou, M (EN)
Matsopoulos, G (EN)
Loudos, G (EN)
journalArticle (EN)
2014-03-01T01:35:02Z
2011 (EN)
The development and assessment of a readout system based on field programmable gate arrays (FPGA) for dedicated nuclear medicine cameras is presented. We have used Xilinx Spartan3E starter kit, which is one of the simplest FPGA evaluation boards. The aim of this work is to offer a simple, open source, data acquisition tool, which provides accurate results for nuclear imaging applications. The system has been evaluated using three different experimental setups: pulses from two position-sensitive photo-multipliers (PSPMTs) and a silicon photo-multiplier (SiPM) were recorded, using99mTc sources. Two dual channel, external, 12 bit analog to digital converters with a sampling rate of 1 Msps per channel were used. The tool was designed using Xilinx's embedded development kit and was based in Xilinx's Microblaze soft-core processor. A reference multiparameter-based data acquisition system using nuclear instrumentation modules was used for the evaluation of the proposed system. A number of tests were carried out to assess different algorithms for pulse maximum estimation and Gaussian fitting provided optimal results. The results have shown that the FPGA data acquisition system (i) provides accurate digitization of the PSPMT anode signals under various conditions and (ii) gives similar energy spectra when SiPMs are used. © 2011 IOP Publishing Ltd. (EN)
Engineering, Multidisciplinary (EN)
Instruments & Instrumentation (EN)
Nuclear medicine (EN)
Energy spectra (EN)
Sampling rates (EN)
Nuclear imaging (EN)
Rating (EN)
Position sensitive (EN)
position-sensitive photomultipliers (PSPMT) (EN)
Low-cost systems (EN)
Photomultipliers (EN)
Data acquisition system (EN)
Evaluation board (EN)
Analog to digital conversion (EN)
Analog to digital converters (EN)
Open sources (EN)
Spectroscopy (EN)
Gamma-ray detection (EN)
Field programmable gate arrays (FPGA) (EN)
Optimal results (EN)
Dual channel (EN)
Positron emission (EN)
data acquisition (DAQ) (EN)
Single photon emission computed tomography (EN)
embedded development kit (EDK) (EN)
Embedded development (EN)
Gamma rays (EN)
Experimental setup (EN)
Gaussian fitting (EN)
Soft-core processors (EN)
Logic gates (EN)
silicon photomultiplier (SiPM) (EN)
Positron emission tomography (EN)
field programmable gate arrays (FPGA) (EN)
Anode signals (EN)
Measurement Science and Technology (EN)
English
IOP PUBLISHING LTD (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
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