Title :
A simulation to model position encoding multicrystal PET detectors
Author :
Tsang, G. ; Moisan, C. ; Rogers, J.G.
Author_Institution :
TRIUMF, Vancouver, BC, Canada
fDate :
12/1/1995 12:00:00 AM
Abstract :
We have developed a simulation to model position encoding multicrystal detectors for positron emission tomography. The simulation is designed to treat the interactions of energetic photons in a scintillator, the geometry of the multicrystal array, as well as the propagation and detection of individual scintillation photons. The simulation is tested with a model of the EXACT HR PLUS block detector manufactured by Siemens-CTI. Position and energy responses derived from the simulation are compared to measured ones. Line-spread-functions, for four columns of crystals, are reproduced with an accuracy of ±0.5 mm. The crystal-by-crystal photopeak pulse heights and FWHMs are also predicted within a range of ±14%, and -6+9%, respectively
Keywords :
position sensitive particle detectors; positron emission tomography; simulation; solid scintillation detectors; EXACT HR PLUS block detector; FWHM; crystal-by-crystal photopeak pulse heights; energetic photon interactions; energy response; line-spread-functions; position encoding multicrystal PET detectors modeling; position response; positron emission tomography; scintillation photons; simulation; Encoding; Energy measurement; Geometry; Photonic crystals; Position measurement; Positron emission tomography; Solid modeling; Solid scintillation detectors; Testing; Virtual manufacturing;
Journal_Title :
Nuclear Science, IEEE Transactions on