Abstract
The Thin-TOF PET (TT-PET) project aims at the construction of a small-animal PET scanner based on silicon monolithic pixel sensors with 30ps time resolution for 511keV photons, equivalent to 100ps time resolution for minimum ionizing particles. Iterative image reconstruction on Monte-Carlo simulation shows that the scanner can produce high signal-to-noise ratio images with good spatial resolution throughout the whole field of view. The demonstrator chip, comprising a 3 × 10 pixel matrix and a 50ps binning TDC, was tested at the CERN SPS beam test facility. The demonstrator shows an efficiency greater than 99.9% and a time resolution for minimum ionizing particles of approximately 110ps.
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