A comparative study of the time performance between NINO and FlexToT ASICs

Universitat de Barcelona (UB) and CIEMAT have designed the FlexToT ASIC for the front-end readout of SiPM-based scintillator detectors. This ASIC is aimed at time of flight (ToF) positron emission tomography (PET) applications. In this work we have evaluated the time performance of the FlexToT v2 AS...

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Bibliographic Details
Published inJournal of instrumentation Vol. 12; no. 4; p. P04016
Main Authors Sarasola, I., Nemallapudi, M.V., Gundacker, S., Sánchez, D., Gascón, D., Rato, P., Marín, J., Auffray, E.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 13.04.2017
Subjects
Comparative studies
Emission analysis
Energy measurement
Performance evaluation
Positron emission
Power consumption
Scintillation counters
Synchrotrons
Tomography
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Summary:Universitat de Barcelona (UB) and CIEMAT have designed the FlexToT ASIC for the front-end readout of SiPM-based scintillator detectors. This ASIC is aimed at time of flight (ToF) positron emission tomography (PET) applications. In this work we have evaluated the time performance of the FlexToT v2 ASIC compared to the NINO ASIC, a fast ASIC developped at CERN. NINO electronics give 64 ps sigma for single-photon time resolution (SPTR) and 93 ps FWHM for coincidence time resolution (CTR) with 2 × 2 × 5 mm3 LSO:Ce,Ca crystals and S13360-3050CS SiPMs. Using the same SiPMs and crystals, the FlexToT v2 ASIC yields 91 ps sigma for SPTR and 123 ps FWHM for CTR. Despite worse time performace than NINO, FlexToT v2 features lower power consumption (11 vs. 27 mW/ch) and linear ToT energy measurement.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/12/04/P04016