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Angular Correlation Between α-Particles and γ-Rays in the Reaction F19(p,αγ)O16

Naturevolume 166page145 (1950) | Download Citation



WE have studied the correlation between the directions of emission of alpha-particles and gamma-rays at the 340-keV. resonance in the following reaction: Both alpha-particles and gamma-rays were observed in the plane perpendicular to the proton beam. The alpha-particles were detected in a proportional counter with a window sufficiently thick (approximately 6.5 mm. air equivalent) to exclude protons scattered from the calcium fluoride target. The 6.1-MeV. gamma-rays emitted from the oxygen-16* nuclei were detected in a lead-walled Geiger counter. Coincidences between the alpha-particles and the gamma-rays were measured as a function of angle between the counters.

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  1. Cavendish Laboratory, Cambridge

    • C. A. BARNES
    •  & A. P. FRENCH
  2. Imperial College of Science and Technology, London, S.W.7

    • S. DEVONS


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