EPJ Web Conf.
Volume 260, 2022The 16th International Symposium on Nuclei in the Cosmos (NIC-XVI)
|Number of page(s)||3|
|Published online||24 February 2022|
Reactor activations to constrain astrophysically relevant cross sections
1 Goethe University, Frankfurt, Germany
2 Johannes Gutenberg University, Mainz, Germany
3 University of Edinburgh, United Kingdom
4 Michigan State University, USA
Published online: 24 February 2022
The determination of astrophysically relevant neutron-induced cross sections is particularly difficult when the involved isotopes are radioactive or the cross sections are very small. Activation experiments at reactors offer the possibility to overcome these limitations with high neutron fluxes. The flux determination is typically based on the activation of two monitors with known cross sections to separate the different flux components. The usually applied cadmium difference method allows a distinction between the thermal and the epithermal part. By a combination of two linear functions representing both monitors the neutron flux components can be determined. However, if more than two monitors are used, the linear system of equations is overdetermined, which allows the identification of a probability distribution. In this proceeding, the feasibility and relevance of this method is demonstrated.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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