X-ray phosphor plate system

An X-ray phosphor plate system comprising:

• an x-ray phosphor plate, which is configured to be exposed by x-ray light in a recording region, and which carries a shadowing marker, which is arranged in the recording region, on at least one side of the x-ray phosphor plate;
• and
• a phosphor plate reader, which is configured to read the exposed x-ray phosphor plate in order to produce an x-ray recording, wherein
• the shadowing marker has a shadowing effect in respect of x-ray light that is no more than approximately 30% of the incident x-ray intensity such that the shadowing marker is only weakly identifiable, and/or only identifiable by way of image artefacts, and/or not identifiable when the x-ray recording is observed by a user, and
• wherein the phosphor plate reader has an identification algorithm, which is configured to identify whether or not the x-ray light was shadowed by the shadowing marker during the exposure.