Title :
Sub-millimeter planar imaging with positron emitters: EGS4 code simulation and experimental results
Author :
Bollini, D. ; Guerra, A. Del ; Di Domenico, G. ; Galli, M. ; Gambaccini, M. ; Zavattini, G.
Author_Institution :
Dipt. di Fisica, Ist. Nazionale di Fisica Nucl., Bologna, Italy
Abstract :
Experimental data for planar imaging with positron emitters (pulse height, efficiency and spatial resolution) obtained with two matrices of 25 crystals (2×2×30 mm3 each) of YAP:Ce coupled with a position sensitive photomultiplier (Hamamatsu R2A86-06) have been reproduced with high accuracy using the EGS4 code. Extensive simulation provides a detailed description of the performance of this type of detector as a function of the matrix granularity, the geometry of the detector and detection threshold. We present the Monte Carlo simulation and the preliminary experimental results of a prototype planar imaging system made of two matrices, each one consisting of 400 (2×2×30 mm3) crystals of YAP:Ce
Keywords :
Monte Carlo methods; beta-ray detection; biomedical equipment; biomedical imaging; medical diagnostic computing; position sensitive particle detectors; positron emission tomography; solid scintillation detectors; 2 mm; 30 mm; EGS4 code simulation; Monte Carlo simulation; YAP:Ce scintillator; efficiency; experimental results; position sensitive photomultiplier; positron emitters; pulse height; spatial resolution; sub-millimeter planar imaging; Crystals; Detectors; Geometry; High-resolution imaging; Photomultipliers; Positrons; Solid modeling; Spatial resolution; Transmission line matrix methods; Virtual prototyping;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591611
