I did not think there is any interference because of the big difference in frequencies but just in case I got this confirmation from Sarah Parker who wrote the article "Make the Most Out of Radar." http://www.chemicalprocessing.com/articles/2011/make-the-most-of-radar/

"We have never seen any impact from X-raying of equipment.  The radar units are using a very specific frequency band and wavelength that is very different from any X-ray frequencies and wavelengths.  Radar units use a microwave frequency that is in the range of 5 to 80 GHz which is below the frequency range of visible light. X-rays and other nuclear sources use frequencies that far above the visible light spectrum."