Method and apparatus for utilizing an electro-optic detector in a microtomography system.

摘要

The present invention is an apparatus and a method for producing tomographic images of an object irradiated by a beam of collimated radiation transmitted in a plurality of rays through a set of coplanar sections of an object as viewed from a plurality of angles about a rotation axis. The apparatus includes an imaging electro-optic detector to record the transmitted radiation, wherein the electro-optic detector alters the image format, the format alteration being focused; means to determine and align the projected position of the rotation axis on the electro-optic detector; means to align the object with respect to the rotation axis; means to determine and assure spatial uniformity detector response; means to reduce signal dependent backgrounds; means to determine the projection coefficients from the transmitted radition with respect to one or more reference calibration exposures; and means to compute a reconstructed image of the object's attenuation coefficients.