Browsing by Author "Hanna, Jeff"
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Item Investigation of the C__(p,n)N__ reaction(1960) Hanna, Jeff; Bonner, T. W.The neutron yield from the C14(p,n)N14 reaction was first investigated by Shoup, Jennings, and Sun1°2 in 1948. A number of studios of this reaction have subsequently been conducted at bombarding energies up to 3.4 Mov.3-9 In this work, an energy-sensitive neutron counter was used to detect the neutrons from the reaction at 00 for proton energies from 2.8 to 5.3 Mev. Thresholds for the emission of neutrons from the compound nucleus N15 to the first and second excited states of N14 were measured at proton energies of 3.142 Nov and 4.894 Mev, respectively. The excitation curve for neutrons of all energies at 0° was run from 2.8 Rev to 4.89 Mev. In addtion, the excitation curves for the ground state and the first excited state groups of neutrons were resolved over the same region. The resonances occuring in the reaction were used to study the energy levels of the compound nucleus N15 in the region from 12.8 to 15.2 Mev. Resonances were observed which correspond to previously unreported N15 levels in N15 at 13.52 Nov and 14.49 Mev.