RESOLUT at FSU

Ingo decided that a lot has been said already about 26Al, and he's telling us about the new REsonator SOLenoid with Upscale Transmission (RESOLUT) at Florida State instead. At this facility they use a 9MV tandem accelerator to produce radioactive ion beams at energies around the coulomb barrier, and one reaction of particular interest for them is 25Al(p,g)26Si. After the tandem they have a superconducting linear accelerator followed by superconducting resonators that once were part of Atlas ( at Argonne National Lab). The radioactive beams impinge upon a target gas cell that could be H2, D2, He3, or He4. They use inverse kinematics for their production reactions.

He finally doesn't resist and tells us about his research on 26Al, of astrophysical relevance as we have heard in previous talks. Ingo's group wants to study competition of decay from the isomeric state in 26Al, and for that they study 26Si resonances. They use a surrogate measurement, which has very similar properties to the mechanism of actual interest (for nuclear astro), to study l=0 proton resonances of the p+25Al system.

What about direct measurement of 25Al(p,g)? too difficult, small cross section, high beam quality required. Impossible to do at FSU, could be done at rare ion facilities.