1. Take cover immediately, below ground if possible,
though any shield or shelter will help protect you from the
immediate effects of the blast and the pressure wave.
2. Consider if you can get out of the area;
3. Or if it would be better to go inside a building
and follow your plan to "shelterin-place".
4.Shielding: If you have a thick shield
between yourself and the radioactive materials more of the
radiation will be absorbed, and you will be exposed to less.
5.Distance: The farther away from the blast
and the fallout the lower your exposure.
6.Time: Minimize time spent exposed will also
reduce your risk.