The elastic scattering of 41.5-MeV electrons was measured at ∼180° where the charge scattering is very small so magnetic scattering stands out more clearly. Measurements were made for ${}_1{}^{}{}_{}{}^{}\mathrm{H}_{}^1{}_{}{}^{}$, ${}_1{}^{}{}_{}{}^{}\mathrm{D}_{}^2{}_{}{}^{}$, ${}_2{}^{}{}_{}{}^{}\mathrm{He}_{}^4{}_{}{}^{}$, ${}_3{}^{}{}_{}{}^{}\mathrm{Li}_{}^6{}_{}{}^{}$, ${}_3{}^{}{}_{}{}^{}\mathrm{Li}_{}^7{}_{}{}^{}$, ${}_4{}^{}{}_{}{}^{}\mathrm{Be}_{}^9{}_{}{}^{}$, ${}_5{}^{}{}_{}{}^{}\mathrm{B}_{}^{10}{}_{}{}^{}$, ${}_5{}^{}{}_{}{}^{}\mathrm{B}_{}^{11}{}_{}{}^{}$, ${}_6{}^{}{}_{}{}^{}\mathrm{C}_{}^{12}{}_{}{}^{}$, ${}_7{}^{}{}_{}{}^{}\mathrm{N}_{}^{14}{}_{}{}^{}$, ${}_8{}^{}{}_{}{}^{}\mathrm{O}_{}^{16}{}_{}{}^{}$, ${}_9{}^{}{}_{}{}^{}\mathrm{F}_{}^{19}{}_{}{}^{}$, ${}_{10}{}^{}{}_{}{}^{}\mathrm{Ne}_{}^{20}{}_{}{}^{}$, ${}_{11}{}^{}{}_{}{}^{}\mathrm{Na}_{}^{23}{}_{}{}^{}$, ${}_{12}{}^{}{}_{}{}^{}\mathrm{Mg}$, ${}_{13}{}^{}{}_{}{}^{}\mathrm{Al}_{}^{27}{}_{}{}^{}$, ${}_{15}{}^{}{}_{}{}^{}\mathrm{P}_{}^{31}{}_{}{}^{}$, ${}_{18}{}^{}{}_{}{}^{}\mathrm{Ar}_{}^{40}{}_{}{}^{}$, ${}_{19}{}^{}{}_{}{}^{}\mathrm{K}_{}^{39}{}_{}{}^{}$, and ${}_{20}{}^{}{}_{}{}^{}\mathrm{Ca}_{}^{40}{}_{}{}^{}$. It is shown that the results are consistent with calculations based on scattering by the magnetic moment of the nuclei involved.

• Received 6 August 1962

DOI:https://doi.org/10.1103/PhysRev.129.312