Abstract
Studying ({alpha},p) reactions of astrophysical interest with radioactive beams presents serious challenges because of the difficult nature of the target. We have developed a new approach for the measurement of ({alpha},p) reactions using heavy ion beams in inverse kinematics and have measured the {sup 4}He({sup 19}F,{sup 1}H){sup 22}Ne reaction as a demonstration. {sup 19}F beams were used at the Holifield Radioactive Ion Beam Facility (HRIBF) tandem accelerator in Oak Ridge National Laboratory (ORNL) to bombard a large scattering chamber filled with {sup 4}He gas. Recoiling protons from the reactions were detected by the large area annular silicon strip detector array (SIDAR). The {sup 19}F({alpha},p) and {sup 19}F({alpha},p') excitation functions were measured over the energy range of E{sub c.m.} {approx} 1-2.1 MeV, demonstrating the viability of the technique
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