scope:

This standard applies to electro-optical X-ray image intensifiers as components for x-ray imaging systems in medical diagnosis. This standard also covers electro-optical X-ray image intensifier tubes but excludes its application to all such devices when these are installed in an X-ray imaging system. This standard specifies a laboratory method of determining and reporting the image distortion as a functional performance characteristic which is determined at the output screen by measuring the image of a test device placed in front of the entrance plane.