Idea to make radiation that affects a person more stealthy

[RSOD]

i like the idea, because having someone instantly go "OH GOD! OH NO! THERE'S RADIATION HERE!" and instantly dip and run even if it's an amount so small you don't even take damage from feels annoying. means people have to be more careful around radioactive environments and geigers get more use than just clicking ominously while in your inventory