Published February 1, 1954
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The Branching Ratio of K40
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Abstract
Attempts to measure the branching ratio of K40 by determining the A40/K40 ratio in potassium minerals of supposedly known age were recently reported by Russell, Shilibeer, Farquhar, and Mousuf [1] and by Mousuf [2]. These results indicated a branching ratio of 0.06±0.006. Other recent determinations of λK/λβ by counting methods [3] and by determining the A40/Ca40 ratio in geologically old potassium salts [4] are in agreement with a value of 0.13.
Additional Information
©1954 The American Physical Society Received 9 December 1953 The authors are greatly indebted to Professor M. G. Inghram and to Professor H. C. Urey for their valuable guidance and suggestions during the progress of this work. This work was supported in part by the U.S. Atomic Energy Commission and in part by the National Science Foundation Grant No. G-208.Files
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2006-10-06Created from EPrint's datestamp field
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