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Giancoli's Physics: Principles with Applications, 7th Edition
31
Nuclear Energy; Effects and Uses of Radiation
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31-1: Nuclear Reactions, Transmutation
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31-2: Nuclear Fission
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31-3: Nuclear Fusion
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31-5: Dosimetry
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 46
Q

A 1.6-mCi source of 1532P{^{32}_{15}\textrm{P}} (in NaHPO_4), a β\beta emitter, is implanted in a tumor where it is to administer 32 Gy. The half-life of 1532P{^{32}_{15}\textrm{P}} is 14.3 days, and 1.0 mCi delivers about 10 mGy/min. Approximately how long should the source remain implanted?

A
1.4 days1.4 \textrm{ days}
Giancoli 7th Edition, Chapter 31, Problem 46 solution video poster
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