Patent ID: 6333506
Filing Date: 2001-12-25
Classification: G01T,H01J

Abstract:
A detector unit for two-dimensional detection of incoming radiation from an X-ray source, comprising:a solid material structure including a conversion medium in which said incoming radiation causes the emission of electrons into at least one drift region,an anode and cathode for generating an electric field in said at least one drift region, anda detector sensitive in two dimensions adjacent to said solid material structure so as to detect electrons originating from said at least one drift region in response to said incoming radiation, whereina plurality of passages, arranged in a two-dimensional array, are located close to each other and extend within the solid material structure,the passages having surface portions including the conversion medium and being inclined at an angle relative to the direction of the incoming radiation,whereby said incoming radiation will impinge onto said surface portions at an acute angle and cause the emission of electrons from said surface portions into said drift regions.