Burning a spill wet or dry is NEVER a cleanup option. The goal of a nuclear spill response is to contain contamination. Combustion can only spread it.
X Navy Nuke Anon
Do disrespect but Magnesium and Phosphorus are metals and they just burn. Class Delta fire.
Depends on what happened? Contamination can be cleaned usually but it depends on the Radiation decay chains and the includes of concern. No way to tell with out more information IMHO.
Includes should read nuclids. Sorry, Phone fag’n.