Experimental studies of cross sections and angular distributions of 112Cd(p,γ)113In with application in nucleosynthesis

2014-12-04T12:09:35Z (GMT) by Athanasios Psaltis

In the study of p-process for the explanation of the abundances of p-nuclei in our solar system a huge reaction network is involved ( >20.000 reaction with >2000 nuclei), which is computed theoretically using the Hauser Feshbach model (HF).

Experimental cross section measurements of (p,γ), (α,γ) and (n,γ) reactions are necessary because they act as regulators of the H-F model, by improving its predictions.

Towards this direction, we deduced the first experimental measurements of angular
distributions and cross sections of the reaction:

112Cd(p,γ)113In, Qvalue = 6078.07 keV

The measurements were carried out in the Tandem accelerator lab of N.S.C.R ”Demokritos” in the energy range of E= 2.8 − 3.4 MeV . The reaction was studied using two different methods, in-beam and activation, due to the isomeric state of
113In (391.7 keV, t1/2=99.5 m).

Our experimental data were compared with the theoretical predictions of the latest version of code TALYS (v1.6), and are in fairly good agreement.