If a 65-kg person swallowed of what would be the dose rate averaged over the whole body?

Chapter 31, Problem 31.48

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(II) \(^{57} _{27} Co\) emits 122-keV \(\gamma\) rays. If a 65-kg person swallowed \(1.55\ \mu Ci\) of \(^{57} _{27} Co\), what would be the dose rate (Gy/day) averaged over the whole body? Assume that 50% of the \(\gamma\)-ray energy is deposited in the body. [Hint: Determine the rate of energy deposited in the body and use the definition of the gray.]

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