Physics – Medical Physics
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apsp.conf..636b&link_type=abstract
ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 11th Conference. Held
Physics
Medical Physics
Scientific paper
Two PET scanner modules have been built in order to demonstrate the AX-PET concept in a phantom test. Each module comprises 6 layers of 8 LYSO crystals (3 × 3 × 100) mm3 orthogonally interleaved with layers of 26 wave length shifting strips (WLS) with dimensions (0.9 × 3 × 40) mm3. The spatial resolution is defined by the dimensions of the crystals and WLS strips, while the sensitivity depends on the number of crystal layers. According to MC simulations, the sensitivity will be increased further by reconstructing Compton interactions. Crystals and WLS strips are read out by MPPCs. First module tests yield an energy resolution of the LYSO crystals of 12.33 % and 12.46 % FWHM and a spatial resolution of the WLS strips of (1.68 ± 0.25) mm FWHM. Special simulation and reconstruction software were developed for the AX-PET demonstrator.
Beltrame Paolo
Bolle Erlend
Braem André
Casella Chiara
Chesi Enrico
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