Patent ID: 7253416
Filing Date: 2007-08-07
Classification: G01T

Abstract:
1. A radiation detector arrangement for a medical diagnostic apparatus comprising: a radiation detector comprising a radiation-sensitive detector element, a sensor field, and an evaluation unit; said detector element emitting emitted energy upon passage of a radiation quantum therethrough; said sensor field comprising a plurality of sensor elements in a matrix, each sensor element emitting an electrical signal corresponding to secondary radiation incident thereon, each electrical signal having a signal intensity and a signal energy; and said evaluation unit identifying affected sensor elements, from among said plurality of sensor elements, that emit an electrical signal upon passage of said radiation quantum through said detector element, said radiation quantum generating a signal track across said affected sensor elements, said signal track having a beginning location, a length, and an end location, and determining a spatial distribution of said affected sensor elements from said beginning location, said length, and said end location, and, from said spatial distribution, determining a direction of incidence of said radiation quantum on said detector element.