Scintillator for use in e.g. X-ray diagnostic device, has luminescent layer converting radiation into visible light, where distribution of light from luminescent layer is adapted to projection lens by anti-vignetting measures

摘要

The scintillator has a luminescent layer applied on a reflecting substrate e.g. aluminum mirror or silver-mirror. The luminescent layer converts radiation i.e. X-ray, into visible light. The luminous intensity distribution of the light from the luminescent layer is adapted to projection lens by anti-vignetting measures, where the lens is arranged downstream to the layer. The anti-vignetting measures include increase of the layer thickness of the luminescent layer at an edge of the substrate, where doping of the luminescent layer is homogeneous.