Method for measuring the pulse transfer spectrum of elastically diffracted x-ray quanta

摘要

The method involves examining x-ray quanta coming from diffusion voxel (6) of object (5) which comprises of focus point (2) extending in the Y direction, as anode (1), emitting x-rays in the X direction. A primary collimator (4), which lets through only primary radiation (3) is arranged and focal point (7) which is point of origin of Cartesian co-ordinates system is also present. Diffusion collimator is arranged between the analysis region and the focal point, and only lets through diffused radiation (11) from an object that can be placed in the analysis region. Radiations are emitted at a fixed angle of diffusion and detector (9) detects the elastically diffused x-ray quanta whereby the x-component of a diffusion voxel of the object is clearly illustrated on the z-component of the detector. Energy spectrum of diffused radiation from the diffusion voxel is admitted under different diffusion angles with a spatial resolution and energy resolution detector in the YZ plane. Impulse transfer is determined, whereby the diffraction profile of the diffusion voxel, from the geometrical data of the x-ray illumination plant for different diffusion angle. Respective diffraction profiles are combined, which belong to different diffusion angles, to form a collective diffraction profile.