Patent ID: 7283613

Claim:
A method of measuring a momentum transfer spectrum of elastically scattered X-ray quanta which emanate from a scatter voxel inside an object to be examined, the scatter voxel is located in a radioscopy unit which has an anode extended in a Y-direction with a plurality of focus points, emits X-radiation in an X-direction and has a primary collimator which allows through only primary radiation aimed at a single isocentre at the origin of a Cartesian coordinates system, a scatter collimator is arranged between the examination area and the isocentre and allows through only scatter quanta, from the object, the X-ray quanta are emitted at an angle of scatter (Θ) with a constant Z-component (Θ z ), wherein the scatter collimator includes a detector, wherein the X-component of a scatter voxel of the object is imaged onto the Z-component of the detector, said method comprising: simultaneous recording of the energy spectrum of scatter quanta from the scatter voxel at different angles of scatter (Θ) with a spatially-resolving and energy-resolving detector in the Y-Z plane; determining the momentum transfer, that is the diffraction profile of the scatter voxel, from the geometric data of the radioscopy unit for the different angles of scatter (Θ); applying a variable weighting to diffraction profiles such that a zone having a best signal-to-noise ratio receives a greatest weighting; and combining the respective diffraction profiles that belong to different angles of scatter (Θ) to produce a total-diffraction profile.