I work with X-rays machines on a daily basis and that's not how it works.Food for thought though. CT scans are basically x-rays and whatnot etc. Doesn't using an xray leave behind radiation exposure etc? So if a seller, say, at Collectacon, says they have a $10k booster box that is unscanned, isn't there a machine that can pick up residual radiation from CT scans? Could that be used potentially against "unscanned" scammers? Or is there a way to get rid of traces of radiation? Asking for a friend of course
I'll try to keep it simple: A CT-scanner works by creating X-rays which are fired in a specific direction onto a detector which the computer converts into images. X-Rays have a certain amount of energy set by the technician which will get completely absorbed (which is why there's lead in the walls in the radiology department) in material before they're stopped. You can think of it like light concentrated on a small piece, light switch on = light, off = no light, there's no residual light.
(To have lingering radiation you would need a source of radiation that keeps emitting radioactive particles by decaying, which would be a massive health hazard and very illegal)