G - Physics – 01 – N
Patent
G - Physics
01
N
358/30, 358/5
G01N 23/02 (2006.01) A61B 6/00 (2006.01)
Patent
CA 1187633
ABSTRACT: "Apparatus for examination by means of scattered radiation". The invention relates to an apparatus for imaging a layer to be examined of a body irradiated by primary radiation, which layer emits scattered radiation, which apparatus comprises a diaphragm plate which is disposed outside the primary beam, which is rotatable about an axis (7)perpendicular to its major surface, and which has at least one aperture which is disposed off the axis of rotation, and a detector or a superposition device for measuring or superimposing the scattered radiation which passes through the diaphragm plate at different aperture settings. The primary radiation (3) is stopped down to form a flat fan-shaped beam, the diaphragm plate (6) extending parallel to the fan-shaped beam. Each aperture (8) corresponds to an associated detector (9), which follows the rotation of the diaphragm plate and whose input face extends parallel to the diaphragm plate, said detector being arranged so as to be rotatable about a detector axis (10) which is perpendicular to an input face and extends through its centre, in a direction opposite to the direction of rotation of the diaphragm plate and with the same angular velocity as this plate.
403335
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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