Answer Happy

Posted: **Tue Apr 26, 2022 7:14 pm**

: 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 1 (35.13 KiB) Viewed 33 times

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.