2019, Paolozzi, L., Bandi, Y., Cardarelli, R., Débieux, S., Favre, Y., Ferrère, D., Forshaw, D., Hayakawa, D., Iacobucci, G., Kaynak, M., Miucci, A., Nessi, M., Ripiccini, E., Rücker, H., Valerio, P., Weber, M.

The TT-PET collaboration is developing a small animal TOF-PET scanner based on monolithic silicon pixel sensors in SiGe BiCMOS technology. The demonstrator chip, a small-scale version of the final detector ASIC, consists of a 03 × 1 pixel matrix integrated with the front-end, a 50 ps binning TDC and read out logic. The chip, thinned down to 100 µm and backside metallized, was operated at a voltage of 180 V. The tests on a beam line of minimum ionizing particles show a detection efficiency greater than 99.9% and a time resolution down to 110 ps. © 2019 CERN.

2018, Paolozzi, L., Bandi, Y., Benoit, M., Cardarelli, R., Débieux, S., Forshaw, D., Hayakawa, D., Iacobucci, G., Kaynak, M., Miucci, A., Nessi, M., Ratib, O., Ripiccini, E., Rücker, H., Valerio, P., Weber, M.

The TT-PET collaboration is developing a PET scanner for small animals with 30 ps time-of-flight resolution and sub-millimetre 3D detection granularity. The sensitive element of the scanner is a monolithic silicon pixel detector based on state-of-the-art SiGe BiCMOS technology. The first ASIC prototype for the TT-PET was produced and tested in the laboratory and with minimum ionizing particles. The electronics exhibit an equivalent noise charge below 600 e− RMS and a pulse rise time of less than 2 ns , in accordance with the simulations. The pixels with a capacitance of 0.8 pF were measured to have a detection efficiency greater than 99% and, although in the absence of the post-processing, a time resolution of approximately 200 ps .