As a health physicist, you are being consulted about a spill in a radiochemistry lab. The isotope spilled was 400 mCi of 131 Ba, which has a half-life of 12 days. (a) What mass of 131 Ba was spilled? (b) Your recommendation is to clear the lab until the radiation level has fallen 1.00 µCi. How long will the lab have to be closed?

As a health physicist, you are being consulted about a spill in a radiochemistry lab. The isotope spilled was 400 mCi of 131 Ba, which has a half-life of 12 days. (a) What mass of 131 Ba was spilled? (b) Your recommendation is to clear the lab until the radiation level has fallen 1.00 µCi. How long will the lab have to be closed?

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