Patent ID: 7166848
Filing Date: 2007-01-23
Classification: G01T

Abstract:
1. A three-dimensional radiation dectecter assembly comprising: a plurality of thin semiconductor crystal dectector parallax error reduction modules, each of said parallax error reduction modules including first and second oppositely facing planar surfaces and at least one photon receiving edge surface between said planar surfaces, said first planar surface having formed thereon a single monolithic cathode, said second planar surface having formed thereon a two-dimensional array of pixelated anodes, outputs of said two-dimensional array of pixelated anodes containing information useful for determining depth of interaction of photons received at said at least one photon receiving edge surface, the depth of interaction being indicated by a location of an anode sensing photon absorption, said plurality of thin semiconductor crystal dectecter parallax error reduction modules being arranged in a stack such that photon receiving edge surfaces therefore together defined a photon receiving surface extending in two dimensions, and together providing photon impingement location information in said two dimensions, and said depth of interaction indicating information providing photon travel information, indicating photon travel having a component in a third dimension, perpendicular to said two dimension, for parallax error reduction.