We are already really good at stopping harmful radiation.
Alpha is blocked by a sheet of paper, and cant even go through our retina. Don’t eat it and you are fine.
Beta is blocked by our skin. Don’t eat it and you are fine.
Gamma is super tiny. Try to stay away from it and you are fine.
If you are exposed to neutron, you are in a nuclear reactor or atomic bomb blast, and are not fine.
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