6. Cobalt-60 emits a 1.173-MeV gamma, a 1.332-MeV gamma, and a beta having a maximum K of 0.3179 MeV. (a) Compute the th
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6. Cobalt-60 emits a 1.173-MeV gamma, a 1.332-MeV gamma, and a beta having a maximum K of 0.3179 MeV. (a) Compute the th
6. Cobalt-60 emits a 1.173-MeV gamma, a 1.332-MeV gamma, and a beta having a maximum K of 0.3179 MeV. (a) Compute the thickness of lead needed to shield a 1-mCi so that no beta particles escape. (b) Compute the thickness of lead needed to attenuate 99% of the gamma radiation.
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