Hamid Sabet

Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA

[ 1 ] - An alternative mathematical modeling of the scintillation camera and framework for performance analysis of gamma-ray positioning algorithms

Introduction: Substantive amount of work has been done in modeling and analyzing the scintillation camera system processes including positioning and image formation. The goal of this work is to develop a framework for analyzing performance of nonlinear positioning methods upon construction of a mathematical model of the system. In this study, the photodetector array counts are ...

[ 2 ] -  A novel approach to automatic position calibration for pixelated crystals in gamma imaging

Introduction: The position estimation in gamma detection system will have constant misplacements which can be corrected in the calibration procedure. In the pixelated crystal uniformly irradiation of detector will produce irregular shape due to position estimation errors. This image is called flood field image and is used to calibrate the position estimation. In this work we pr...