We have developed a Time-of-flight high resolution and commercially viable detector module for the application in small PET scanners. A new approach to depth of interaction (DOI) encoding with low complexity for a pixelated crystal array using a single side readout and 4-to-1 coupling between scintillators and photodetectors was investigated. In this method the DOI information is estimated using the light sharing technique. The detector module is a 1.53×1.53×15 mm3 matrix of 8×8 LYSO scintillator with lateral surfaces optically depolished separated by reflective foils. The crystal array is optically coupled to 4×4 silicon photomultipliers (SiPM) array and readout by a high performance front-end ASIC with TDC capability (50 ps time binning). The results show an excellent crystal identification for all the scintillators in the matrix, a timing resolution of 530 ps, an average DOI resolution of 5.17 mm FWHM and an average energy resolution of 18.29% FWHM.
Niknejad, T., Pizzichemi, M., Stringhini, G., Auffray, E., Bugalho, R., Da Silva, J., et al. (2017). Development of high-resolution detector module with depth of interaction identification for positron emission tomography. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 845, 684-688.
Citazione: | Niknejad, T., Pizzichemi, M., Stringhini, G., Auffray, E., Bugalho, R., Da Silva, J., et al. (2017). Development of high-resolution detector module with depth of interaction identification for positron emission tomography. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 845, 684-688. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | Si |
Titolo: | Development of high-resolution detector module with depth of interaction identification for positron emission tomography |
Autori: | Niknejad, T; Pizzichemi, M; Stringhini, G; Auffray, E; Bugalho, R; Da Silva, J; Di Francesco, A; Ferramacho, L; Lecoq, P; Leong, C; Paganoni, M; Rolo, M; Silva, R; Silveira, M; Tavernier, S; Varela, J; Zorraquino, C |
Autori: | PIZZICHEMI, MARCO (Secondo) |
Data di pubblicazione: | 2017 |
Lingua: | English |
Rivista: | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.nima.2016.04.080 |
Appare nelle tipologie: | 01 - Articolo su rivista |