PT Journal
AU Llosa, G
   Barrillon, P
   Barrio, J
   Bisogni, MG
   Cabello, J
   Del Guerra, A
   Etxebeste, A
   Gillam, JE
   Lacasta, C
   Oliver, JF
   Rafecas, M
   Solaz, C
   Stankova, V
   de La Taille, C
TI High performance detector head for PET and PET/MR with continuous crystals and SiPMs
SO Nuclear Instruments & Methods in Physics Research A
JI Nucl. Instrum. Methods Phys. Res. A
PY 2013
BP 3
EP 5
VL 702
DI 10.1016/j.nima.2012.08.099
LA English
DE Monolithic crystals; SiPM; MG-APD; PET; High resolution; Position determination
AB A high resolution PET detector head for small animal PET applications has been developed. The detector is composed of a 12 mm x 12 mm continuous LYSO crystal coupled to a 64-channel monolithic SiPM matrix from FBK-irst. Crystal thicknesses of 5 mm and 10 mm have been tested, both yielding an intrinsic spatial resolution around 0.7 mm FWHM with a position determination algorithm that can also provide depth-of-interaction information. The detectors have been tested in a rotating system that makes it possible to acquire tomographic data and reconstruct images of Na-22 sources. An image reconstruction method specifically adapted for continuous crystals has been employed. The Full Width at Half Maximum measured from a point source reconstructed with ML-EM was 0.7 mm with the 5 mm crystal and 0.8 mm with the 10 mm crystal.
ER