Coarse segmented detector architecture and method of making same

摘要

A CT system includes a rotatable gantry having an opening to receive an object to be scanned, the rotatable gantry having a detector mounting surface, an x-ray source attached to the gantry and configured to project an x-ray beam toward the object, a plurality of detector modules each mounted within one field-of-view (FOV) and mounted directly to the detector mounting surface of the rotatable gantry, a data acquisition system (DAS) configured to receive outputs from at least one of the plurality of detector modules, and a computer programmed to acquire projections of imaging data of the object from the DAS, and generate an image of the object using the imaging data.

主权项

1. A computed tomography (CT) system comprising:
a rotatable gantry having an opening to receive an object to be scanned, the rotatable gantry having a detector mounting surface; an x-ray source attached to the gantry and configured to project an x-ray beam toward the object; a plurality of detector modules each mounted within one field-of-view (FOV) and mounted directly to the detector mounting surface of the rotatable gantry; a data acquisition system (DAS) configured to receive outputs from at least one of the plurality of detector modules; and a computer programmed to:
acquire projections of imaging data of the object from the DAS; andgenerate an image of the object using the imaging data; wherein each of the plurality of detector modules comprises:
an L-shaped mounting bracket having a first leg and a second leg, wherein the first leg is attached to the detector mounting surface of the rotatable gantry;a collimator array attached to the second leg of the L-shaped mounting bracket;an electronics board attached to both the second leg of the L-shaped mounting bracket and the collimator array, the electronics board being attached to an underside of the second leg that is opposite from a surface of the second leg at which the x-ray beam strikes the detector module; andanalog to digital (A/D) application specific integrated circuit (ASIC) conversion chips attached to the electronics board that generate digital signals to be provided as the outputs from the detector module.