Originally Posted by
WillCAD
However, an x-ray machine is obviously an electrical device. I don't know how they generate, or detect, the x-rays they use to form the image, so a large electromagnet could be part of the process, and the magnetic field from that may be what disrupted your tapes.
The Fark thread on this incident had someone who appeared knowledgeable that said that x-ray generation involves big magnets. I have no confirmation on this, though.