Resonant absorption of the γ-radiation from the22Ne(p, γ)23Na reaction and the effect of rutherford scattering in the target on the width of the absorption curves

Gamma rays of energy 9.404 and 9.700 MeV were obtained from the reaction²²Ne(p, γ)²³Na at proton energies of 640 and 950 keV respectively and were resonantly absorbed in sodium metal. Isotopically separated²²Ne targets on nickel backings were used. The following level widths for²³Na were obtained: The 9.404 MeV level: Γ=65 ±40eV Γ_γ=2.2±0.7eV. The 9.700 MeV level: Γ=9.5 _?1.0 ^{+4.5 eV} Γ_γ=5.6 _?0.8 ^{+1.2 eV} . The disagreement between the results for the 9.404 MeV level and the previously determined values can probably be ascribed to proton scattering in the window of the gas target used in the latter measurement.