Nonsense. The specific shielding materials depend on the nature of the radiation. If there are no neutrons or gamma rays, the requirements are relaxed as to the amount of mass required. I guess you've "heard" of it, but you don't know anything about it. The amount of shielding is also dependent on the allowable dose and the integrated duration of the exposure. It wasn't 2 feet of solid lead.
I have...it's about 2 feet of solid lead.
Nonsense. The specific shielding materials depend on the nature of the radiation. If there are no neutrons or gamma rays, the requirements are relaxed as to the amount of mass required. I guess you've "heard" of it, but you don't know anything about it. The amount of shielding is also dependent on the allowable dose and the integrated duration of the exposure. It wasn't 2 feet of solid lead.