Emission of Protons from the Compound Nucleus F18

The emission of protons from the reaction N14(α,p)O17 was studied by photographic emulsion technique. Two groups of protons were observed, of Q values of about -1.16 Mev and -2.0 Mev for Eα=3.6 Mev and 4.2 Mev. The yield per million incident α-particles has been estimated at 0.348 and 0.409 for the two resonance levels, 3.6 Mev and 4.2 Mev, respectively. The angular distribution of protons in the CM system has a maximum at θ=90° for the two ground states, and, for the excited states, it is isotropic.