Eur. Phys. J. A (2006) 27: 141-144
https://doi.org/10.1140/epja/i2006-08-020-y

Nuclear Physics in Astrophysics II

^{106, 108}Cd (p,γ)^{107, 109}In cross-sections for the astrophysical p-process

¹ Institute of Nuclear Research (ATOMKI), P.O. Box 51, H-4001, Debrecen, Hungary
² University of Debrecen, Hungary

Received: 26 July 2005
Accepted: 20 December 2005
Published online: 10 March 2006

Abstract

The proton capture cross-sections of the two most proton-rich, stable isotopes of cadmium have been measured for the first time in the energy range relevant to the astrophysical p-process. The ¹⁰⁶Cd (p,γ)¹⁰⁷In and ¹⁰⁸Cd (p,γ)¹⁰⁹In cross-sections have been determined using the activation technique. Highly enriched as well as natural Cd targets have been irradiated with proton beams from both the Van de Graaff and Cyclotron accelerators of the ATOMKI. The cross-sections have been derived by measuring the γ-radiation following the β-decay of the ¹⁰⁷In and ¹⁰⁹In reaction products. The measurements were carried out in the energy range between 2.4 and 4.8MeV which is the relevant energy region (Gamow window) for the astrophysical p-process. Preliminary results are presented here and are compared with the predictions of the Hauser-Feshbach statistical model calculations using the NON-SMOKER code.