Investigation of the Reactions 25,26Mg (alpha,n) and 18O (alpha,n) - Experimental investigation and impact on stellar nucleosynthesis

The nuclear reactions 25Mg( ,n)28Si, 26Mg( ,n)29Si and 18O( ,n)21Ne are investigated in the astrophysically interesting energy region from E = 1000 keV to E = 2450 keV. The experiments were performed at the Nuclear Structure Laboratory of the University of Notre Dame (USA) with the Van-de-Graaff accelerator KN. Solid state targets with evaporated magnesium or anodized oxygen were bombarded with -particles and the released neutrons detected. For the detection of the released neutrons, computational simulations were used to construct a neutron detector based on 3He counters. Because of the strong occurrence of background reactions, different methods of data analysis were employed. Finally, the impact of the reactions 25Mg( ,n)28Si, 26Mg( ,n)29Si and 18O( ,n)21Ne on stellar nucleosynthesis is investigated by means of network calculations.

About the author

1979 geboren in Mainz, Studium der Physik an der JohannesGutenberg Universität Mainz sowie Promotion am Max PlanckInstitut für Chemie. Forschungsaufenthalte an der University ofNotre Dame du Lac, CERN und ANSTO (Australien).

Product details

• Authors: Sascha Falahat
• Publisher: Südwestdeutscher Verlag für Hochschulschriften
• Languages: English, German
• Product format: Paperback / Softback
• Released: 28.07.2011
• EAN: 9783838124667
• ISBN: 978-3-8381-2466-7
• No. of pages: 188
• Subject: Natural sciences, medicine, IT, technology > Physics, astronomy > Atomic physics, nuclear physics