Terrific concept, and makes perfect sense ... heck, some of the armchair theorizing about "mithril" and other fantasy metals have had them come from the transuranic "island of stability."
Beyond that, what's "technological" about this? Radiation is a naturally occurring phenomenon. Uranium is a naturally occurring metal. No one would call rules for what happens when a character is struck by lightning "technological," however much electricity is ubiquitous in our modern world.