Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
9th Edition
ISBN: 9781305932302
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 45, Problem 68AP
To determine

The absorbed dose during the period of 10.0 days.

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A 95 kgkg patient swallows a 33 μCiμCi beta emitter with a half-life of 5.0 days, and the radioactive nuclei are quickly distributed throughout his body. The beta particles are emitted with an average energy of 0.35 MeVMeV, 90%% of which is absorbed by the body. What dose equivalent does the patient receive in the first week?
✓ ON "O 2.75 MeV 0.511 MeV 0.511 MeV B, E= 1.73 MeV Eave = 0.721 Mev O MeV
A 73.0 kg person experiences a whole-body exposure to alpha radiation with an energy of 1.50 MeVMeV. A total of 5.40×1012 alpha particles is absorbed. Use the Table of Relative biological effectiveness (RBE) for several types of radiation. A) What is the absorbed dose in rad? Express your answer in rads. B) What is the equivalent dose in rem? Express your answer in rem. C) If the source is 0.0100 gg of 226Ra (half-life 1600 years) somewhere in the body, what is the activity of the source? Express your answer in decays per second. D) If all the alpha particles produced are absorbed, what time is required for this dose to be delivered? Express your answer with the appropriate units.

Chapter 45 Solutions

Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term

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