Patent ID: 6167110
Filing Date: 2000-12-26
Classification: G01T

Abstract:
A high resolution and robust radiation imager apparatus for generating computed tomography (CT) images of an object to be imaged with x-rays emanating from an x-ray source, said imaging apparatus comprising:a detector assembly comprising a plurality of sensor elements optically coupled to a scintillator; each of said plurality of sensor elements further comprising a respective plurality of thin film deposited semiconductor photosensors disposed in a linear array pattern along a respective sensor element axis;the respective sensor element axis of each of said plurality of sensor elements further being offset from a direct path focal axis of x-rays passing from said x-ray source but oriented in a direction parallel to said focal axis with respect to said x-ray source;said scintillator comprising a fiber optic scintillator having a plurality of optical fibers bundled in an array and disposed such that said x-rays are incident on said fiber optic scintillator substantially perpendicular to the respective optical axes of said plurality of optical fibers;said fiber optic scintillator further being optically coupled to at least one of said sensor elements such that said sensor elements is disposed at one end of the plurality of optical fibers.