Production and Utilization of ²²Na Secondary Beam

The ²²Na secondary beam was produced via the ¹H(²²Ne, ²²Na)n reaction at the CNS Radioactive Ion Beam separator (CRIB) in University of Tokyo. After the separation and purification with the electric-magnetic system of the separator, a high-quality ²²Na secondary beam was delivered with energy of (78.3±1.0) MeV, intensity of about 2.5×10⁵ s^-1 and purity better than 90%. The ²²Na secondary beam has been used for the study of the resonant scattering of ²²Na+α, which is related to the neon extraordinary problem in nuclear astrophysics.