collimator of x-ray can be used, in particular, in an apparatus for computed tomography.

摘要

An X-ray collimator for use in computerized axial tomography apparatus includes a plurality of substantially parallel X-ray absorbing laminae disposed in the plane of a wedge-shaped X-ray beam. The length and position of each lamina with respect to a divergent X-ray source is chosen to maximize the ratio of X-ray flux impinging upon a detector array to flux falling within the collimator's penumbra, outside the detector array. A single set of moveable jaws may be disposed at the collimator exit for adjustment of the beam thickness.