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Published April 11, 1967 | public
Journal Article

The ratio of K-capture to positon emission in the decay of ^(11)C


The ratio of K electron capture to positon emission in the 21 min decay of ^(11)C has been measured by a flow counter technique. The counter consisted of a central proportional counter surrounded by an envelope of plastic scintillator operated in anti-coincidence. The experimental value of the Kβ+ ratio was found to be (2.30_(−0.11)^(+0.14)) × 10^(−3), in agreement with a theoretical ratio of (2.18±0.01) × 10^(−3), calculated from the K electron wave function given by Depommier et al.

Additional Information

© 1967 Elsevier B.V. Received 26 January 1967. The authors wish to thank Drs. W. McFarlane and T. Aitken and the synchrotron staff for their co-operation. Two of us (J.L.C. and W.L.) are indebted to the Science Research Council for financial support.

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