RX sensitivity in ICs
RX is perfectly applicable to CCD IC's. There are many products, like solder paste inspection cameras, which are just arrays of hundreds ccds. with some motion to sweep across gaps between sensors.

There is nothing destructive happening in electronics related to RX, if it is schematically designed to be immune to current increase across all junctions caused by RX. For lowish levels of Rx.

High level RX/Gamma rays will move curves to thermal runaway points so, that devices will instantly fry themself, but the destruction will be done by normal DC power, not RX itself.

Edit: After some reading an googling about XRay CCD. The sensors are actually normal cameras with normal optics watching a scintillation screen. 

Next incoming invention can be a tiny oscilloscope tube with little camera watching it in a DIP-40 sized assembly.