publication . Article . 2011

PET System Synchronization and Timing Resolution Using High-Speed Data Links

Ramón J. Aliaga; José M. Monzo; Michele Spaggiari; Néstor Ferrando; Rafael Gadea; Ricardo J. Colom;
Open Access English
  • Published: 01 Aug 2011
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • Country: Spain
Abstract
Current PET systems with fully digital trigger rely on early digitization of detector signals and the use of digital processors, usually FPGAs, for recognition of valid gamma events on single detectors. Timestamps are assigned and later used for coincidence analysis. In order to maintain a decent timing resolution for events detected on different acquisition boards, it is necessary that local timestamps on different FPGAs be synchronized. Sub-nanosecond accuracy is mandatory if we want this effect to be negligible on overall timing resolution. This is usually achieved by connecting all boards to a common backplane with a precise clock delivery network; however, ...
Subjects
free text keywords: Data acquisition (DAQ), Positron emission tomography (PET), Serial links, Synchronization, Timing resolution, Backplanes, Coincidence analysis, Detector signals, Digital processors, High-speed data, Scalability problems, System synchronization, Time stamps, Timing resolutions, Positron emission tomography, TECNOLOGIA ELECTRONICA, Nuclear and High Energy Physics, Electrical and Electronic Engineering, Nuclear Energy and Engineering
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publication . Article . 2011

PET System Synchronization and Timing Resolution Using High-Speed Data Links

Ramón J. Aliaga; José M. Monzo; Michele Spaggiari; Néstor Ferrando; Rafael Gadea; Ricardo J. Colom;