6. A generator contains 500 mCi of 13 Ba (71/2 = 11.6 d) producing the daughter 13 Cs (1/2 = 9.7 d). At t = 0 the daughter is completely removed. 1310 (a) When will the 131 Cs activity equal that of its parent? (b) How many becquerels of 131 Cs can then be removed (assuming 100% removal efficiency)? (c) How much total activity of 131 Cs could be obtained if milking were done instead three times, at 122.3-h intervals? (d) If you saved up the 131Cs obtained in (c), what would be its remaining activity at 367 h?

6. A generator contains 500 mCi of 13 Ba (71/2 = 11.6 d) producing the daughter 13 Cs (1/2 = 9.7 d). At t = 0 the daughter is completely removed. 1310 (a) When will the 131 Cs activity equal that of its parent? (b) How many becquerels of 131 Cs can then be removed (assuming 100% removal efficiency)? (c) How much total activity of 131 Cs could be obtained if milking were done instead three times, at 122.3-h intervals? (d) If you saved up the 131Cs obtained in (c), what would be its remaining activity at 367 h?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter14: Nuclear Physics Applications

Section: Chapter Questions

Problem 41P

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