X-rays are down the same road as radiation, and have been used in similarly ill-conceived ways. Especially when used to check out babies in utero, similar to how we use sonograms today. It just seems so crazy now!
Pretty interesting but older book about it online, citing looks pretty legit. Thought you might be interested. http://www.ratical.org/radiation/Killin ... /KOO6.html
By the way, I always seem to be preparing or eating food while listening. Luckily thanks to growing up with medical chat around the dinner table I have developed a pretty strong disposition. Which makes listening feel a bit like being home while I have my meal at work.
Have a lovely day!