Development of an FPGA-based data acquisition module for small animal PET
2004 (English)In: 2004 IEEE Nuclear Science Symposium Conference Record, 2004, 2957-2961 p.Conference paper (Refereed)
We report on the design of a DAQ module for a small animal PET camera developed at our institutes. During the design an important guideline was to develop a system which is built up from strictly identical DAQ modules, and which has no built-in hardware limitation on the maximum number of modules. The developed DAQ module comprises of an LSO scintillator crystal block, a position sensitive PMT, analog signal conditioning circuits, a digitizer, an FPGA for digital signal processing and a communication module through which the collected data is sent to a cluster of computers for post processing and storage. Instead of implementing hardware coincidence detection between the modules we attach a precise time-stamp to each event in our design, and the coincidence is determined by the data collecting computers during the post processing. The digital CFD algorithm implemented in the FPGA gives a time resolution of 2 to 3 ns FWHM for real detector signals.
Place, publisher, year, edition, pages
2004. 2957-2961 p.
, IEEE Nuclear Science Symposium Conference Record, ISSN 1095-7863 ; 5
Biological organs, Crystals, Digital signal processing, Field programmable gate arrays, Image analysis, Medical imaging, Positron emission tomography, Analog signal processing, Hardware coincidence detection, Poistion sensitive PMT, Small animals, Data acquisition
IdentifiersURN: urn:nbn:se:kth:diva-157294ISI: 000232002104064ScopusID: 2-s2.0-23844443642ISBN: 0-7803-8700-7OAI: oai:DiVA.org:kth-157294DiVA: diva2:771170
2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors, 16 October 2004 through 22 October 2004, Rome, Italy
QC 201412122014-12-122014-12-082014-12-12Bibliographically approved