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Problem- Calculate the effective radiation dosage (in Sieverts) for a 69-kg person who is exposed to 4.9 × 109 particles of alpha radiation. Assume that 81% of the radiation is absorbed, each alpha particle has an energy of 6.7× 10-13 J, and that the RBE of the alpha particles is 15. Note that RBE is sometimes called the quality factor, abbreviated as Q.

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