Patent ID: 6792077
Filing Date: 2004-09-14
Classification: A61B,G21K

Abstract:
An electron beam tomography (EBT) scanning system comprising:an electron source generating an electron beam; a target ring that receives said electron beam from said electron source, said target ring emitting an x-ray fan beam upon impingement of the electron beam on said target ring; a pair of detector arrays arranged opposite said target ring detecting said x-ray fan beam; and a collimator having at most two collimator rings, said collimator arranged concentrically between said target ring and said pair of detector arrays, said collimator having interior and exterior walls concentrically arranged with one another and surrounding a patient examination area, said interior and exterior walls having first and second sets of apertures aligned to collimate said x-ray fan beam into a first collimated beam having a first width and a second collimated beam having a second width, respectively, said first and second collimated beams forming at least one of a single and double tomographic slice, and said first and second collimated beams being detected by at least one of said pair of detector arrays.