M. G. Silbert

Nuclear energy levels of N16

Abstract Thirteen energy levels of N16 have been determined in the range of excitation from 0 to 5.6 MeV by a high resolution study of the proton spectrum from the N14(t, p)N16 reaction. Levels above the well-known ground state quartet are found at 3.340, 3.506, 3.956, 4.318, 4.392, 4.773, 5.059, 5.141, 5.230 and 5.526 MeV. These energies have been assigned standard deviations of from 10 to 25 keV. Level widths and reaction cross sections are also reported. The results of this experiment are compared with previous experiments.

The two-stage nuclear reaction N14(t, n)O16*(p)N15

Abstract A remarkably clear example of a two-stage nuclear reaction has been observed. Broad, steep-sided proton groups, observed during the bombardment of nitrogen by tritons, have been ascribed to the process N 14 (t, n)O 16* (p)N 15 . It is notable that this reaction appears to proceed by way of particular sharp states in O 16 at an excitation of about 15 MeV.