In Belfast, flying over to Edinburgh, my wife (who previously had cancer) asked to not use the machine. They told her "it's not radiation, it's not like the Ame

In Belfast, flying over to Edinburgh, my wife (who previously had cancer) asked to not use the machine. They told her "it's not radiation, it's not like the American ones" (despite being the exact same one they had at O'Hare). After 2-3 minutes of debating, they finally let her get a pat down. And then after the pat down, forced her to go through the machine anyway. We were in a foreign country, on a pretty tight schedule (missing this flight wasn't an option), and I wasn't exactly well versed on the legality of these things in Europe to make the argument. Having seen the photos these things generate, it seems like they're pretty much useless unless someone is carrying something on them that would probably be pretty apparent anyway. Is there any cases where these machines have caught someone?