The Short-Range Alpha Particles from the Disintegration of Fluorine by Protons

Citation

Becker, Robert Adolph (1941) The Short-Range Alpha Particles from the Disintegration of Fluorine by Protons. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/psch-p121. https://resolver.caltech.edu/CaltechTHESIS:02212025-185231244

Abstract

The ranges of the alpha-particle groups proceeding from the 334, 867, 927, 1220 and 1363 kev resonances in the bombardment of fluorine with protons were measured. The Q's of those particles obtained at 334, 867, 927 and 1363 kev were found to be identical, and have the value 1.81 ± 0.04 Mev. The Q of the low-energy alpha particles obtained at the 1220 kev resonance was found to be 1.93 ± 0.07 Mev. The two values thus yield an energy separation of 0.12 ± 0.1 Mev for the corresponding two states of 0¹⁶ . In addition it was shown that at least one of the two resonances which are in the neighborhood of 900 kev must yield short-range alpha particles whose angular distribution is not spherically symmetric.

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