Plastic restoration kits and methods for effectively restoring the light transmission and optical clarity properties to a plastic surface such as an aircraft window. % of a mixture consisting of 10 to 90 wt. The ISM or X-band is used for the carrier of the code to provide sufficient bandwidth within available spectrums. The aim of the invention is to create an X-ray stand of the above-described kind that comprises a drive device that is relatively inexpensive, requires little space and allows for a relatively high positioning accuracy.