(a) Background radiation due to 226 Ra averages only 0.01 mSv/y, but it can range upward depending...
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(a) Background radiation due to 226Ra averages only 0.01 mSv/y, but it can range upward depending on where a person lives. Find the mass of 226Ra in the 80.0-kg body of a man who receives a dose of 2.50-mSv/y from it, noting that each 226Ra decay emits a 4.80-MeV a particle. You may neglect dose due to daughters and assume a constant amount, evenly distributed due to balanced ingestion and bodily elimination.
(b) Is it surprising that such a small mass could cause a measurable radiation dose? Explain.
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a Convert dose to energy First convert the annual dose from mSvy to Gyy using the conversion factor ...View the full answer
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