[DangerousThing]

Originally Posted by Rupert

My solution is to record initial HT rolls vs radiation and if your accumulated dose in a day goes over a threshold, check that roll vs the new level. Another option would be to roll each time a threshold is reached, but only take the worst result. Either way, it's not the RAW, because they give silly results when presented with accumulating doses within one day.

I just accumulate doses for the day, and then have the players roll at the end of the day or when the radiation is done with. If, because of my mistake, they roll too early and somebody irradiates them again, I just record that for the next day.

I rarely use radiation damage, even in an SF campaign.