I wonder if anyone has considered building faux plutonium rods that can simulate criticality events. That is, they're packed with electronics and lights that di

I wonder if anyone has considered building faux plutonium rods that can simulate criticality events. That is, they're packed with electronics and lights that display to you how much radiation they're giving off, and how close they are to going critical. They'd be electronic devices that measure each other's position. Accelerators could tell if they're dropped or banged on something. You'd also pair them with a faux radioactivity meter (Geiger counter), and perhaps a faux radiation dosage badge. "Huh, if I bang these rods on each other, I see a flash of lights showing it was 50% to critical, I hear the Geiger counter jack up, and my radiation badge measures that I've just instantly received a year's worth of radiation. Ouch." Maybe if technicians could experience first-hand how easy it is for these plutonium rods to go critical, they might be more wary of mishandling them. It's understandable how a person could become desensitized to the risk of something that they've never seen happen, where the threshold of that event occurring is not intuitively known. When I'm driving my car in a high performance way, I can feel when I'm beginning to push the bounds of its traction. I can feel when antilock breaking kicks in. I get to experience the threshold where something bad can begin to happen. With fissile material, perhaps it is a problem that workers never get to experience the threshold boundary at all until it's too late.