Shaping filter for dose optimization of x-ray device for generation of sectional images of object for computer tomography, has single solid unit comprising two materials, and angle-dependent filters realizing beam parameter correction

摘要

The filter (59) has a single solid unit that comprises two materials, where composition of the two materials comprises homogenous material mixture and heterogeneous structured material mixture. The filter optimizes image quality relevant parameters such as pixel noise, scattered radiation intensity or attenuation value representation. An angle-dependent filter realizes beam parameter correction for marker making. The angle-dependent filter realizes beam parameter correction for the cut image formation that is dependent on the cone angle.