RT Conference Proceedings
T1 Modeling the acquisition front-end in high resolution gamma-ray imaging
A1 Guerra, Pedro
A1 Ortuño, Juan E.
A1 Vaquero López, Juan José
A1 Kontaxakis, George
A1 Desco Menéndez, Manuel
A1 Santos, Andrés
AB 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.
PB IEEE
SN 0-7803-8701-5 (online)
SN 0-7803-8700-7 (print)
SN 1082-3654
YR 2004
FD 2004
LK https://hdl.handle.net/10016/12135
UL https://hdl.handle.net/10016/12135
LA eng
NO Proceeding of: 2004 IEEE Nuclear Science Symposium Conference Record, Rome, Italy, 16-22 October 2004
DS e-Archivo
RD 18 may. 2024