Apparatus to read-out information stored in a phosphor layer

摘要

Device for capturing information contained within a phosphor layer comprises a light source (10) for transmission of stimulation light (12) which is incident on a stimulation line (16) of the phosphor layer and is suitable for exciting emissive light within the phosphor layer, a detector for detecting the emissive light and a elongated hollow mirror (14) for focussing the light from the light sources on the phosphor layer. In so doing the light from the light source is magnified by a factor of 1 to M, where M is between 0.5 and 2.