[Spaceships] Orion space drive: launch from underwater?

[Fred Brackin]

Originally Posted by Ulzgoroth

I don't see how this avoids leaving the neutron-bombarded remains of the bomb.

Irradiated lead or irradiated tungsten still fit that description.

Nope, If being hit by neutrons does not make a substance radioactive (and this is quite common) they you can't call it a radioactive contaminant.

Radiatioactivity isn't like being tainted by Original Sin.