Definition of a standard neutron field with the 7Li(p,n)7Be reaction

Author(s)

Claudia Lederer, Franz Käppeler, Marita Mosconi, R Nolte, Michael Heil, Rene Reifarth, Stephan R. Schmidt, Iris Dillmann, Ulrich Giesen, Alberto Mengoni, Anton Wallner

Abstract

The quasistellar neutron spectrum for a thermal energy of kT = 25 keV that can be produced via the Li-7(p, n)Be-7 reaction at a proton energy of E-p = 1912 keV has been measured using the dedicated setup for the definition of neutron fields at Physikalisch-Technische Bundesanstalt Braunschweig. The results confirm previous work with improved accuracy and resolution. Small variations in proton energy leave the spectrum essentially unchanged. This is illustrated by the example of the (n, gamma) cross section of Au-197, where the averaged cross section for the spectrum defined in this work agrees perfectly with the result of a previous measurement.

Organisation(s)

Isotope Physics

External organisation(s)

Karlsruher Institut für Technologie, Physikalisch-Technische Bundesanstalt, GSI Helmholtzzentrum für Schwerionenforschung, Johann Wolfgang Goethe-Universität Frankfurt am Main, International Atomic Energy Agency (IAEA)

Journal

Physical Review C

Volume

85

No. of pages

8

ISSN

0556-2813

DOI

https://doi.org/10.1103/PhysRevC.85.055809

Publication date

2012

Peer reviewed

Yes

Austrian Fields of Science 2012

1030 Physics, Astronomy

Portal url

https://ucrisportal.univie.ac.at/en/publications/53ade4fa-3331-4c9f-b19a-1de3fa1224d4