Tesla,
Is it possible that the RAM was physically damaged, not by radiation, but by the bumpy ride through the X-ray machine with no padding? Is it too late to look at the damaged RAM for signs of this? You should definitely resubmit your claim to the TSA. They can't be allowed to get away with breaking our fragile and expensive equipment.
My backlight bulb was broken by the bumping and jarring at a checkpoint once.