A Caltech Library Service

The Branching Ratio of K40

Wasserburg, G. J. and Hayden, R. J. (1954) The Branching Ratio of K40. Physical Review, 93 (3). p. 645. ISSN 0031-899X. doi:10.1103/PhysRev.93.645.

See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Wasserburg, G. J.0000-0002-7957-8029
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.
Issue or Number:3
Record Number:CaltechAUTHORS:WASpr54
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5265
Deposited By: Archive Administrator
Deposited On:06 Oct 2006
Last Modified:08 Nov 2021 20:24

Repository Staff Only: item control page