8–13 Jun 2025
America/Winnipeg timezone
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Photon-to-Digital Converters – 3D Integrated Digital Single-Photon Detector Arrays Enabling Time-of-Flight PET and CT

9 Jun 2025, 11:30
15m
Oral (Non-Student) / Orale (non-étudiant(e)) Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB) (DPMB) M1-9 | (DPMB)

Speaker

Prof. Serge Charlebois (Université de Sherbrooke)

Description

We develop 3D integrated Photon-to-Digital Converters (PDC) for photon counting applications needing sub-nanosecond timing resolution. Our goal is to provide a detector capable of delivering single photon timing resolution below 50 ps that could enable Time-of-Flight positron emission tomography (ToF-PET) and computed tomography (ToF-CT). We will review the benefits and the challenges posed by these ToF modalities.
In previous years we reported on various TSMC 65nm CMOS readouts embedding Time-to-Digital Converters (TDC) and processing electronics optimized for time-of-flight applications. We will report on the performances of our multi-vernier TDCs and their integration in a readout array, particularly the need for calibration and strategies to do so.
We will also report on the design of a $5\times 5~\text{mm}^2$ readout ASIC being designed for ToF-PET and ToF-CT, and on the production schedule.

Keyword-1 Time-of-Flight PET
Keyword-2 Time-of-Flight CT
Keyword-3 Single photon detectors

Authors

Prof. Serge Charlebois (Université de Sherbrooke) Rejean Fontaine (Université de Sherbrooke) Jean-Francois Pratte (Université de Sherbrooke)

Presentation materials

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