Angular distributions of neutrons corresponding to transitions to the ground and first (1.63 MeV) excited states in the reaction ${\mathrm{F}}^{19}(d, n){\mathrm{Ne}}^{20}$ have been measured at incident deuteron energies of 1.0 and 1.3 MeV. Neutrons were detected using a single stilbene crystal spectrometer. Pulse shape discrimination in stilbene was employed to eliminate background radiation. The angular distributions of the ground-state neutrons were consistent with the predictions of nuclear stripping theory when exchange terms were incorporated in the analysis.

• Received 13 July 1962

DOI:https://doi.org/10.1103/PhysRev.128.2309