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XCVII. The ratio of K-capture to positron emission in fluorine 18

Drever, R. W. P. and Moljk, A. and Scobie, J. (1956) XCVII. The ratio of K-capture to positron emission in fluorine 18. Philosophical Magazine, 1 (10). pp. 942-948. ISSN 1478-6435. doi:10.1080/14786435608238173.

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The existence of electron capture in the decay of ^(18)F has been revealed by the detection of K-radiations of oxygen in a proportional tube spectrometer containing a gaseous BF, source. The K/β^+ ratio determined from the number of counts in the observed K-peak and the total number in the positron spectrum is 0·030, with an estimated accuracy of 6%. A scintillation spectrometer investigation showed the absence of any gamma rays with intensity greater than 0·5% of the positrons, suggesting that both K-capture and beta decay are ground state to ground state transitions. A comparison between theoretical and measured values of the K/β^+ ratio gives, for the ratio of the axial vector and tensor coupling constants, C_A/C_T=(0·4±2)%.

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Additional Information:© 1956 Taylor & Francis. Received: 15 Aug 1956.
Issue or Number:10
Record Number:CaltechAUTHORS:20151223-130445042
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Official Citation:XCVII. The ratio of K-capture to positron emission in fluorine 18 R. W. P. Drever , A. Moljk , J. Scobie Philosophical Magazine Vol. 1, Iss. 10, 1956
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63188
Deposited By: Ruth Sustaita
Deposited On:23 Dec 2015 21:19
Last Modified:10 Nov 2021 23:13

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