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Suppose one food irradiation plant uses a 137Cs source while another uses an equal activity of 60Co . Assuming equal fractions of the γ rays from the sources are absorbed, why is more time needed to get the same dose using the 137Cs source?

Suppose one food irradiation plant uses a 137Cs source while another uses an equal activity of 60Co . Assuming equal fractions of the γ rays from the sources are absorbed, why is more time needed to get the same dose using the 137Cs source?

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter18: Nuclear Reactions
Section: Chapter Questions
Problem 81QAP
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Suppose one food irradiation plant uses a 137Cs source while another uses an equal activity of 60Co . Assuming equal fractions of the γ rays from the sources are absorbed, why is more time needed to get the same dose using the 137Cs source?

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