Speaker
Description
In this presentation, we report differential cross section results for some γ-ray lines produced in the nuclear reactions 56Fe (p, xγ) (lines at Eγ =1238 and 1408 keV), NatMg (p ,xγ) (lines at Eγ = 440 and 450 keV) and NatSi (p, xγ) (line at Eγ = 781 keV). These results are part of our analysis of the PR 239 experiment, carried out in 2015 at iThemba LABS with proton beams of energies, Ep = 66, 80, 95, 110 and 125 MeV using the high energy-resolution Compton-suppressed AFRODITE detection array.
An inter-comparison is made between counterpart experimental data sets measured within our joint collaboration at the SSC facility of iThemba LABS over the whole investigated incident proton energy range, Ep = 30 - 200 MeV for checking their reliability and coherence. The harvest of γ-ray line production cross section experimental results obtained in the framework of this collaboration are new, reported for the first time. They can be pertinently used for simulating still not elucidated astrophysical processes like the interactions of low energy cosmic rays in the inner galaxy, and for determining the properties of γ-ray line emitting astrophysical sites such Solar flares and the ISM.
Keywords : High energy proton beams, HPGe clover detectors, γ-ray line production cross sections; Solar flares, ISM.
