X-ray detector device, glass body for shielding optical detector means of a workpiece measuring device, and X-ray tomography workpiece measuring system

An x-ray detector device for industrial workpiece measuring by means of X-ray radiation, the x-ray detector device comprising

• scintillator means (12) for converting incident X-rays of the X-ray radiation penetrating a workpiece to be measured into visible light at a scintillator light exit surface (14), optical detector means (22;
• 24, 26) for converting the visible light at the scintillator light exit surface into an electronic image signal, the optical detector means being disposed optically downstream of the scintillator means
• and X-ray protection means (18, 20;
• 18′, 20′;
• 18″, 20″) disposed in an optical ray path between the scintillator means and the optical detector means and comprising a body which is transmissive to visible light and has X-ray-absorbing properties, wherein the body is a glass body,
• wherein
• the body is composed of multiple sheets and/or multiple layers, its material is selected in terms of X-ray absorption, transmission of visible light and resistance to material degradation, and its thickness is dimensioned in such a manner that a first sheet or layer (18;
• 18′;
• 18″), which faces the scintillator means, has greater X-ray-absorbing properties and/or a higher resistance to material degradation by the X-ray radiation than a second sheet or layer (20;
• 20′;
• 20″), which is disposed optically downstream of the first sheet or layer and faces the optical detector means,
• and/or
• the body is assigned regeneration means (30, 32) capable of introducing short-wave visible light radiation and/or UV radiation into the body to reduce X-ray-related material degradation in the body.