| Thème(s) : |
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Sciences de l'ingénieur/Micro et nanotechnologies/Microélectronique
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| Titre : |
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Towards a Sub-Millimeter PET Prototype with Continuous LYSO Crystals and SiPM Matrices |
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| Auteur : |
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G. Llosa1, P. Barrillon2, J. Barrio1, M. G. Bisogni3, J. Cabello1, A. Del Guerra3, A. Etxebeste1, J. E. Gillam1, C. Lacasta1, C. de La Taille2, J. F. Oliver1, M. Rafecas1, C. Solaz1, V. Stankova1 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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Omega |
| Résumé : |
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A small animal PET prototype with continuous LYSO crystals coupled to silicon photomultipliers has been developed at IFIC, Valencia. The system consists of two detector heads attached to a rotating stage. Each detector head is composed of a continuous 12 mm x 12 mm crystal painted white, coupled to a monolithic silicon photomultiplier matrix. Tests with 5 mm and 10 mm thick crystals have been carried out. The matrix has 8x8 pixel elements of 1.4 mm x 1.5 mm size in a 1.5mm x 1.5mm pitch. The intrinsic spatial resolution of the detectors is around 0.7 mm FWHM both for the 5 mm and the 10 mm thick crystals. The simulated one-pass list mode (SOPL) algorithm is employed for image reconstruction to fully exploit the continuous nature of the data. The FWHM of the reconstructed point-like sources is better than 1 mm FWHM, which make us confident that sub-millimeter spatial resolution can be achieved in PET images. |
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| Type de publication : |
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Communications sans actes |
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| Date de la présentation : |
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01/11/2012 |
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| Nom du colloque : |
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2012 Nuclear Science Symposium, Medical Imaging Conference and 19th International Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors (2012 IEEE NSS/MIC/RTSD) |
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| Ville du colloque : |
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Anaheim |
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| Pays du colloque : |
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États-Unis |
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| Date du colloque (début) : |
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27/10/2012 |
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| Date du colloque (fin) : |
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03/11/2012 |
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| Speaker : |
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G. Llosa |
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| Identifiant local : |
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LAL/RT 12-31 |
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