The total cross section for ${}_{}{}^7{}_{}{}^{}\mathrm{Li}(\alpha ,\mathrm{n}){}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ has been measured from threshold to $E_{\alpha }=5.67\mathrm{}$ MeV, and inverted by detailed balance to find the ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}(\mathrm{n},{\alpha }_0)$ cross section from $0<\mathrm{}{E}_{\mathrm{n}}\le 0.78$ MeV. Parameters of two resonances, at $E_{\mathrm{n}}=241\mathrm{} \mathrm{and} 493$ keV, are determined from the data.

• Received 17 July 1984

DOI:https://doi.org/10.1103/PhysRevC.30.1375