Magnetic Analysis of the Inelastically Scattered Deuterons and Disintegration Protons from the Deuteron Bombardment of Fluorine

A magnetic spectrograph with photographic detection has been used to analyse the spectra of charged particles emitted from the bombardment of a thin teflon target by 8.9 MeV deuterons. Angular distribution measurements are also reported for several proton and deuteron groups produced in this bombardment. Two inelastically scattered deuteron groups corresponding to excited states in 19 F at 1.60 ± 0.02 MeV and 2.83 ± 0.02 MeV have been observed. The angular distribution of the former group is compared with a theory proposed by Huby and Newns. A number of proton groups have been assigned to the 19 F(d, p) 20 F reaction. Eight new excited states in 20 F are observed at 5.04, 5.19, 5.27, 5.72, 5.87, 5.95, 6.25 and 6.52 MeV, with errors of ± 0.02 MeV. The deuteron stripping theories have been applied to determine the l n -values as well as the reduced widths of 21 excited states in 20 F. The general behaviour of the energy levels of this nucleus is discussed. The angular distribution of a proton group associated with the transition to the 6.091 MeV level in 14 C is found to have l n = 0. A possible configuration for this state is (1p 1/2 ) 1 (2s 1 2 ) 1 .