The ^24 Mg( α ,p) ^27 Al reaction measurement using solenoid spectrometer for nuclear astrophysics (SSNAP)

The ^24 Mg( α ,p) ^27 Al reaction was measured using the solenoid spectrometer for nuclear astrophysics at the University of the Notre Dame to study the astrophysical ^24 Mg( α ,p) ^27 Al reaction rate. Alpha beams from the 10-MV FN tandem accelerator impinged on ^24 Mg solid targets which were made using the vacuum evaporation method on ^12 C foils. A total of 43 beam energies were used. Recoiling protons from the ^24 Mg( α ,p) ^27 Al reaction were detected using a double-sided position sensitive silicon detector array mounted on the solenoid. Energies, times of flight, and flight distances of particles were measured for particle identification. Protons associated with a wide range of excitation energies E_x = 12.42–14.44 MeV in ^28 Si were identified.