6. Cs-137 emits gamma photons with a principle energy of 662 keV while Tc-99m has a principle photon energy of 140 keV. Would you expect to have about the same exposure reading (mR/hr) of 90 mCi of Tc-99m at 1 meter as you would for 90 mCi of Cs-137 at 1 meter? Why or why not? (Hint-multiple detector characteristics may impact your answer.)

6. Cs-137 emits gamma photons with a principle energy of 662 keV while Tc-99m has a principle photon energy of 140 keV. Would you expect to have about the same exposure reading (mR/hr) of 90 mCi of Tc-99m at 1 meter as you would for 90 mCi of Cs-137 at 1 meter? Why or why not? (Hint-multiple detector characteristics may impact your answer.)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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