An analysis of 25Al energy levels observed in the 28Si(p,α)25Al reaction

S. T. Pittman, The University of Tennessee, Knoxville
D. W. Bardayan, ORNL Physics Division
J. C. Blackmon, Louisiana State University
R. L. Kozub, Tennessee Technological University
M. S. Smith, ORNL Physics Division


The level structure of 25Al has been studied at the ORNL Holifield Radioactive Ion Beam Facility (HRIBF) by measuring the angular and energy distributions of alpha particles from the 28Si(p,α) 25Al reaction. Proton beams (∼10 nA) at laboratory energies of 40- and 42-MeV were generated by the 25 MV tandem accelerator and bombarded a natural silicon target (50 μg/cm2). Alpha particles were detected and identified in the Silicon Detector Array (SIDAR) in the " telescope" configuration [1]. Eighteen levels have been observed and spins for several have been constrained through a distorted-wave Born approximation (DWBA) analysis of the angular distributions. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial- ShareAlikeLicence.