Radiation image read out method and apparatus

摘要

A compact apparatus for reading a radiation image that has been stored in a photostimulable phosphor screen comprises an array of transducer elements (4), e.g. avalanche photodiodes, and electronic circuitry (6) for integrating the signal of each of the transducer elements that are illuminated by the light emitted by a pixel of the screen upon stimulation of that pixel. A light collecting assembly such as a concave cylindrical mirror with elliptical cross section (3), may be provided for guiding image-wise modulated light emitted by the phosphor upon stimulation onto the transducer array. A method for reading a radiation image is such an apparatus has been described. <IMAGE>