Beam production of  18Ne with in-flight method for alpha scattering at CRIB

We conducted a measurement of  18Ne + α scattering in inverse kinematics, in order to search for experimental evidence of α-cluster structure in  22Mg above the alpha threshold (Ethr=8.14MeV) and determine the astrophysical rates of the  18Ne(α, p)21Na reaction under the conditions of break-out from the Hot-CNO cycle. A high intensity  18Ne beam at 2.54 AMeV was successfully produced at CRIB (CNS Radioactive Ion Beam separator) of the Center for Nuclear Study, the University of Tokyo. This paper presents the in-flight production of the radioactive  18Ne beam by using the production reaction  3He(16O, 18Ne)n with a windowed cryogenic gas target, which was employed in the mentioned resonant α-scattering experiment.