Title :
A 3-D Monte Carlo simulation of a small animal positron emission tomograph with millimeter spatial resolution
Author :
Bevilacqua, A. ; Bollini, D. ; Del Guerra, A. ; Di Domenico, G. ; Galli, M. ; Scandola, M. ; Zavattini, G.
Author_Institution :
Dipt. di Fisica, Ist. Nazionale di Fisica Nucl., Bologna, Italy
Abstract :
The authors have used the EGS4 Monte Carlo code to simulate the performance of a Positron Emission Tomograph for small animals. The tomograph is a four-head detector, made of matrices of 400 YAP:Ce finger-like crystals (2×2×30 mm3 each) coupled to Position Sensitive Photo-Multipliers (Hamamatsu R2486-06). 3-D reconstruction algorithms have been applied to the 3-D simulated data. The Monte Carlo results show that a spatial resolution below 2 mm (FWHM) can be obtained over a field of view of 2×2×2 cm with a sensitivity of about 550 counts/(μCis) for a gantry diameter of 15 cm, and a threshold of 150 keV
Keywords :
Monte Carlo methods; biological techniques; image reconstruction; image resolution; photomultipliers; positron emission tomography; 15 cm; 150 keV; 3-D Monte Carlo simulation; 3-D reconstruction algorithms; EGS4 Monte Carlo code; Hamamatsu R2486-06; PET; YAP:Ce; YAP:Ce finger-like crystals; YAlO3:Ce; four-head detector; millimeter spatial resolution; nuclear biology; position sensitive photomultipliers; sensitivity; small animal positron emission tomograph; spatial resolution; threshold; Animals; Crystals; Monte Carlo methods; Position sensitive particle detectors; Positron emission tomography; Radioactive decay; Spatial resolution; Three dimensional displays; Transmission line matrix methods; Yttrium;
Conference_Titel :
Nuclear Science Symposium, 1997. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-4258-5
DOI :
10.1109/NSSMIC.1997.670645
