Radioprotective container for radiometric measuring devices

A measuring system for radiometrically determining the density and/or fill level of a filling material located in a container, comprising:

• a radiation protection container, including:
• a first base body having a first planar surface,
• a second base body having a second planar surface,
• a first connecting structure which connects the first base body and the second base body to the surfaces in a form-fitting manner, in such a way that the surfaces define a planar plane,
• a straight-axis radiation waveguide extending in the plane, which is formed by the two base bodies, having
• a first open end region to which the radiation source can be fixed, and
• a second open end region,
• at least one first radiation absorption structure, which is formed by depressions and complementary elevations in the first surface and in the second surface, respectively, such that the first radiation absorption structure extends in the plane, proceeding from the radiation waveguide;
• wherein the radiation protection container can be attached, in relation to the container, such that the second end region of the radiation waveguide is directed away from the container,
• a radioactive radiation source which is fixed to the first end region of the radiation waveguide,
• a detector unit which can be attached to the container, opposite the radiation source, in the beam axis, in order to detect a radiation intensity of the radiation source after passing through the filling material,
• an evaluation unit which is designed to determine the density and/or the fill level of the filling material in the container on the basis of the received radiation intensity.