Performance of the FlexToT v2 ASIC on the readout of different detector designs for PET

Jose, Manuel; Fernández-Varea, José M.; Freixas, Lluís; Garrido, L.; Gascon, D.; Graciani, R.; Marín, J.; Martínez, G.; Mauricio, Joan; Oller, J.C.; Pérez, J. M.; Mendes, P. Rato; Sánchez, David; Sanuy, A.; Sarasola, I.; Torre, O.; Vela, O.

doi:10.1109/nssmic.2015.7582141

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…Preliminary results show a jitter floor of 7 ps rms, single-photon timing resolution (SPTR) below 150 ps (rms) using a laser with 50 ps (FWHM) pulses, and a coincidence time resolution below 250 ps (FWHM) for 2 × 2 × 20 mm 3 LYSO:Ce crystals. The ASIC has been used with monolithic, segmented and phoswich PET detectors, demonstrating its validity as a flexible solution for the readout of different SiPM-based scintillator designs [11].…”

Section: Readout Electronicsmentioning

confidence: 99%

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

et al. 2017

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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.

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Section: Readout Electronicsmentioning

confidence: 99%

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

et al. 2017

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“…As it was discussed before, another possible solution is to use an ASIC instead of using good old analog electronics. There have been proposed several designs like [61], [62]. However, they require a great degree of tuning along with heat dissipation elements as well.…”

Section: Sipm Biasingmentioning

confidence: 99%

“…Application specific integrated circuits(ASICs) have been present for some time on nuclear medicine detector designs [116], [117], [118] and that is because they are a tremendously good fit for these detectors. ASICs can include signal conditioning along with some level of digitization and digital processing in a chip smaller than the detector array to be used with a very good SNR and incredibly low power consumption.…”

Section: Asic Based Designmentioning

confidence: 99%

“…There are however some limitations when using ASICs, specially if they include digital elements. A common approach for ASICs used on PET detectors is to use time over threshold (ToT) to measure the energy of the events [118], this works very well when using one to one coupling, where instead of detecting the position of a small crystal inside one of the detectors of the array we are basically detecting which array element is the one that acquired the most light and we can then assign the event location to said element. If like in our case the crystal elements are smaller than the detector input channels ToT methods have a very hard time acquiring position information because the relationship between ToT and detected light is non linear, there are some groups proposing methods for improving linearization [119], but so far ASICs using this method are generally discarded for small animal designs because of this reason.…”

Section: Asic Based Designmentioning

confidence: 99%

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Proposal for a PET scanner with 4π formula steradian span

Perez-Benito

Herrera

Chil

et al. 2017

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

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