Title :
Use of a YAP:Ce matrix coupled to a position-sensitive photomultiplier for high resolution positron emission tomography
Author :
Guerra, A. Del ; de Notaristefani, F. ; Domenico, G. Di ; Giganti, M. ; Pani, R. ; Piffanelli, A. ; Turra, A. ; Zavattini, G.
Author_Institution :
Dipartimento di Fisica, Ferrara Univ., Italy
fDate :
6/1/1996 12:00:00 AM
Abstract :
A new scintillation detector system has been designed for application in high resolution positron emission tomography (PET). The detector is a bundle of small YAlO3:Ce (YAP) crystals closely packed (0.2×0.2×3.0 cm3), coupled to a position sensitive photomultiplier tube (PSPMT). The preliminary results obtained for spatial resolution, time resolution, energy resolution and efficiency of 2 such detectors working in coincidence are presented. These are 1.2 mm for the FWHM spatial resolution, 2.0 ns for the FWHM time resolution and 20% for the FWHM energy resolution at 511 keV. The measured efficiency is (44±3)% with a 150 keV threshold and (20±2)% with a 300 keV threshold
Keywords :
biomedical equipment; image resolution; photomultipliers; position sensitive particle detectors; positron emission tomography; solid scintillation detectors; 150 keV; 2.0 ns; 300 keV; 511 keV; FWHM; YAP:Ce; YAP:Ce matrix; YAlO3:Ce; YAlO3:Ce; closely packed crystals; diagnostic nuclear medicine; energy resolution; high resolution positron emission tomography; medical instrumentation; position-sensitive photomultiplier; spatial resolution; time resolution; Biomedical imaging; Cathodes; Detectors; Energy resolution; Photomultipliers; Positron emission tomography; Spatial resolution; Time measurement; Timing; Transmission line matrix methods;
Journal_Title :
Nuclear Science, IEEE Transactions on
