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Design and performance of a data acquisition system for VUB-PET

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Date
2001-02
ICR Author
Carnochan, Paul
Author
Bruyndonckx, P
Wang, YG
Tavernier, S
Carnochan, P
Type
Journal Article
Metadata
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Abstract
A flexible and high-speed VME-based data acquisition system (DAQ) has been designed to process data from the University of Brussels (VUB) small-animal positron emission tomography (PET) system. The core tasks of the system are performed by two custom VME modules: a trigger module and a Fast Readout module (FRO), Following the detection of a valid coincidence event by the trigger unit, the raw data from all analog-to-digital converter channels involved are read out simultaneously via a FRO. An onboard digital signal processor (DSP) processor checks and calibrates these data. To increase the transfer throughput of the list mode data to a SUN Ultra Spare 1 workstation, the DSP processor compresses the data format to a 6-byte data packet per event. The maximum average sustained acquisition rate of the system is 200 000 counts per second (cps), while peak rates up to 2 Mcps can be handled. The DAQ also provides online measurement of the random event rate, the single event rate and event losses due to electronic dead time.
URI
https://repository.icr.ac.uk/handle/internal/2882
DOI
https://doi.org/10.1109/23.907579
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  • Other ICR Research
Language
eng
License start date
2001-02
Citation
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2001, 48 pp. 150 - 156

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