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Characterization of an In-Beam PET Prototype for Proton Therapy With Different Target Compositions

2010; Institute of Electrical and Electronics Engineers; Volume: 57; Issue: 3 Linguagem: Inglês

10.1109/tns.2010.2048124

1558-1578

Francesca Attanasi, Nicola Belcari, Sascha Moehrs, V. Rosso, Sara Del Vecchio, G.A.P. Cirrone, G. Cuttone, P. Lojacono, F. Romanò, Nico Lanconelli, A. Del Guerra,

Medical Imaging Techniques and Applications

At the University of Pisa, the DoPET (Dosimetry with a Positron Emission Tomograph) project has focused on the development and characterization of an ad hoc , scalable, dual-head PET prototype for in-beam treatment planning verification of the proton therapy. In this paper we report the first results obtained with our current prototype, consisting of two opposing lutetium yttrium orthosilicate (LYSO) detectors, each one covering an area of 4.5 $\times $ 4.5 ${\rm cm}^{2}$ . We measured the $\beta ^{+}$ -activation induced by 62 MeV proton beams at Catana facility (LNS, Catania, Italy) in several plastic phantoms. Experiments were performed to evaluate the possibility to extract accurate phantom geometrical information from the reconstructed PET images.