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

Autor(en)

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

Abstrakt

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(en)

Isotopenphysik

Externe Organisation(en)

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

Band

85

Anzahl der Seiten

8

ISSN

0556-2813

DOI

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

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

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