Can anyone think of a way it would be possible to simulate areas of varying radioactivity in a LARP, with a way for players to measure how safe they are? I was thinking about something like a fake Geiger Counter programmed to increase/decrease the rates of clicks depending upon the distance from a certain target. Not the most realistic thing to do, I know, but the only way up from there would be to use real counters and actually nuke something. Not being an electronics guy and exhausting every variation of “Simulation of Radioactivity” I could think of in Google I thought I might as well pitch the idea here.
The setting I have in mind for this is the early 1950s, so a digital display method wouldn’t be appropriate. Anyway, any ideas would be appreciated.