Study of astrophysical (α, n) reactions using light‐neutron rich radioactive nuclear beams

A systematic study of astrophysical reaction rates of (α, n) reactions on light neutron‐rich nuclei using low‐energy radioactive nuclear beams is in progress at the tandem facility of Japan Atomic Energy Agency. Exclusive measurements of 8Li(α, n)11B and 12B(α, n)15N reaction cross sections have been performed successfully. Their excitation functions together with the experimental method are presented.