Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 29, 2009
Patent Application Number
12131341
Date Filed
June 2, 2008
Patent Primary Examiner
Patent abstract
An X-ray detector is formed with a geometry in the form of a spherical polygon, including an entrance window, a grid and an anode. The spherical polygonal entrance window and the grid form a spherical polygonal drift region between them. The electric field in this region is radial and eliminates parallax broadening. A spherical polygonal amplification region between a resistive anode on an insulating support and the grid allows very high gas amplification and good protection against spark discharges. A readout electrode on the back side of the anode insulator detects induced charges and protects the readout electronics against sparks.
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