Title :
Sub-millimeter planar imaging with positron emitters: EGS4 code simulation and experimental results
Author :
Bollini, D. ; Di Domenico, G. ; Galli, Matteo ; Gambaccini, M. ; Zavattini, G.
Author_Institution :
Dipt. di Fisica, Ist. Nazionale di Fisica Nucl., Bologna
fDate :
8/1/1997 12:00:00 AM
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 R2486-06) 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. The authors 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; image resolution; photomultipliers; positrons; radioisotope imaging; EGS4 code simulation; Hamamatsu R2486-06; YAP:Ce; YAlO3:Ce; detection threshold; detector geometry; matrix granularity; medical diagnostic imaging; nuclear medicine; position sensitive photomultiplier; positron emitters; pulse height; spatial resolution; submillimeter planar imaging; Crystals; Detectors; Geometry; High-resolution imaging; Photomultipliers; Positrons; Solid modeling; Spatial resolution; Transmission line matrix methods; Virtual prototyping;
Journal_Title :
Nuclear Science, IEEE Transactions on
