These and other objects of the present invention are achieved by an apparatus and process for evaluating an image-wise exposed storage film positioned about a cylindrically-shaped member and linearly passed a cylindrically-shaped slot for interrogation by a light beam wherein a processing assembly is co-axially disposed within a processing chamber formed by the cylindrically-shaped member and wherein the processing assembly includes a plate member disposed for rotation in a plane perpendicular to the axis of the processing chamber and having a pentaprism and a fluorescence light sensor positioned proximate a contact point of the interrogating light beam with the storage film and further including converting electronics for the thus generated fluorescence light wherein after interrogation, the storage film is immediately restored in the same apparatus for subsequent reuse.