Absolute Magnetic Analysis ofF19(p, p′)F19*Reaction

An annular magnet spectrometer has been used to study groups of protons scattered inelastically from the two lowest excited states of ${\mathrm{F}}^{19}$. The results of six experiments at bombarding energies between 2.1 and 4.5 Mev indicate an assignment of 110.4±0.6 and 197.8±1.2 kev, respectively, for these levels. No other groups ascribable to ${\mathrm{F}}^{19}$ were observed in the region of excitation up to 730 kev, and no multiplet structure was observed for either of the ${\mathrm{F}}^{19}$ groups. The experiments were capable of detecting proton groups with an intensity with respect to the ground state group of 2 percent. Doublet separations of 3 kev would have been detected.