Publication: Modeling the acquisition front-end in high resolution gamma-ray imaging
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ISSN: 1082-3654
ISBN: 0-7803-8701-5 (online)
ISBN: 0-7803-8700-7 (print)
Publication date
2004
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Tutors
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Publisher
IEEE
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Abstract
The availability of synthetic realistic data enables design optimization, algorithm evaluation and verification of any digital system where a significant amount of digital signal processing is performed. The evolution of positron emission tomography cameras towards continuous sampling of individual position-sensitive photomultiplier anodes with processing algorithms implemented on digital programmable logic devices creates a new framework where new approaches to the γ-event detection are possible. We have developed a system model of the acquisition chain, including multi-layer phoswich, photomultiplier, front-end analog electronics, data acquisition and data processing. This processing includes estimation algorithms for the most relevant event parameters: energy, layerof- interaction, time picking-off and event location. The selected simulation platform couples gently to digital hardware simulation tools, in such a way that implemented models may generate reallike stimuli for the digital system under development. The modeling of the whole front-end electronics enables deeper understanding and tuning of different system trade-offs and provides a rapid and soft transition between specification and hardware development.
Description
Proceeding of: 2004 IEEE Nuclear Science Symposium Conference Record, Rome, Italy, 16-22 October 2004
Keywords
Continuous sampling, Depth of interaction, Frontend electronics, Nuclear pulse processing, Hardware validation, Positron Emission Tomography (PET) Modeling
Bibliographic citation
2004 IEEE Nuclear Science Symposium Conference Record, 2004, vol. 5, p. 3089-3093