X-ray fluoroscopy system for use in e.g. computer tomography, in medical field for indicating radiographs of to-be-analyzed object, has detector elements whose width decreases from column lying centrally under X-ray focus to other columns

摘要

The system has a detector array provided with detector elements that are arranged in rows (4-6) and columns. An X-ray source produces an oblong X-ray focal point (2), where an anode surface of the X-ray source is inclined with an angle to a normal in a cutting plane. Length of the detector elements measured in a column direction decreases in each column from a rear edge of the detector array to a front edge. Width of the detector elements measured in row direction decreases in each row from one of the columns lying centrally under the X-ray focus to other outermost columns.