Arrangement for measuring the pulse transmission spectrum by means of elastically scattered x-ray quanta, as well as a process for the determination of this pulse transmission spectrum via

摘要

The invention relates to an arrangement for measuring the pulse transmission spectrum by means of elastically scattered x-ray quanta with a in the y - the direction of the extended focus as an anode 1, of the x-ray radiation emitted in the x - direction; with a in the y - extending primary collimator 4, which lets through only x-ray radiation to a single focal point 7 is directed and the focal point 7 origin of a cartesian coordinate system; with an examination region; with a scatter between the examination zone and the focal point 7 is arranged and which only scattered radiation 11 of an object to be introduced into the examination zone 5 has been reached, which emits at a fixed scattering angle θ; and with a detector 9;the x - component of a litter voxel 6 of the object 5 unambiguously to the z - component of the detector 9 is imaged. According to the invention, it is provided that the detector 9 in the yz - plane, there is at a distance from the z - axis, and as a two-dimensional pixel - detector is constructed from a plurality of energy-sensitive detector elements 10 is.In addition, the invention is concerned with a method for determining the in the arrangement according to any one of the preceding claims measured by means of pulse transmission spectrum, wherein the measured values of the detector elements 10 as a function of the primary beam angle α, as well as the position of the detector element 10 for diffusion 6 and the therefrom ..