[The use of a test model in a stepped form (test steps) for the clarification of different problem situations in X-ray diagnosis. 2. The use of test steps for testing the POLAROID-TPX immediate X-ray picture system].

The stepwedge, described in part 1 and in other publications, was used for the examination of the POLAROID-Instant Radiographic System. The result showed, that this system is a quite acceptable method for the practitioner. POLAROID-radiographs, in comparison with the classic radiographs, show equal contrast and detail-visibility, but demand a higher radiation dose.