Question: 6. (1 point each) In a year, a worker receives 8 mGy externally from uniform, whole-body y radiation. In addition, she receives estimated 50-year

6. (1 point each) In a year, a worker receives 8 mGy

6. (1 point each) In a year, a worker receives 8 mGy externally from uniform, whole-body y radiation. In addition, she receives estimated 50-year "committed" doses of 2 mGy from internally deposited alpha particles in the lung and 50 mGy from beta particles in the thyroid. (a) What is the effective dose for this worker? (b) How much additional external, uniform, whole-body y dose could she receive during the year without technically exceeding the ICRP annual dose limit of 20 mSv? (c) Instead of the y dose in (b), what additional committed alpha-particle dose to the red bone marrow would exceed the annual effective-dose limit?

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