Neutronâ€induced reactions remain at the forefront of experimental investigations for the understanding of stellar nucleosynthesis and chemical evolution of the Galaxy. We present recent experiments performed with the Liquidâ€Lithium Target (LiLiT) and the mAâ€proton beam at 1.92 MeV (2â€4 kW) from the Soreq Applied Research Accelerator Facility (SARAF), yielding highâ€intensity 30â€keV quasiâ€Maxwellian neutrons (3â€5×1010n/s). First experiments were dedicated to benchmark the experimental system by reâ€measuring the Maxwellian Averaged Cross Section (MACS) of several targets. Using α, β, γ spectrometry and atomâ€counting techniques (accelerator mass spectrometry, atomâ€trap trace analysis), we are extending our experimental studies to targets of astrophysical interest: the 36,38Ar(nγ) reactions are investigated for the first time with 30â€keV neutrons as well as neutron capture reactions on important nuclides natGa, natSe, natKr and natXe, natCe in the weak and main sâ€process regimes, respectively, and 209Bi at the end of the sâ€process path. The high neutron intensity enables MACS measurements of lowâ€abundance or smallâ€mass radioactive targets. Neutronâ€induced reactions on 7Be and neutron capture reactions on s†process branching points 147Pm, 171Tm are investigated. The status of these experiments and preliminary results will be presented
Room:
1.05