Patent ID: 7312467

Claim:
An apparatus for reading out X-ray information stored in a storage phosphor layer, whereby an X-ray picture made up from a number of pixels is obtained, the apparatus comprising: an irradiation device for irradiating the storage phosphor layer with a stimulation light beam to be moved along a line over the storage phosphor layer, and in so doing stimulating the storage phosphor layer into emitting emission light; a detector for collecting the emission light emitted from the storage phosphor layer and for converting the emission light collected into a corresponding detector signal S; and a processing unit for deducing picture signal values B for the pixels of the X-ray picture along the line from the detector signal S; and at least two sensors located at different reference positions, each sensor collecting a reference time when the stimulation light beam is located at said sensor's respective reference position, and wherein the processing unit deduces a number of detector signal values D from the detector signal S with the number of signal values D being dependent on an uncontrolled scanning speed, and the processing unit further deducing the picture signal values B from detector signal values D deduced between the reference time from respectively two of said at least two sensors.