https://doi.org/10.1140/epja/i2008-10741-0
Regular Article - Experimental Physics
Thermal neutron capture cross-section of 76Ge
1
Kepler Center for Astro and Particle Physics, Eberhard Karls Universität Tübingen, D-72076, Tübingen, Germany
2
Institut für Radiochemie, Technische Universität München, D-85748, Garching, Germany
3
Institut für Kernphysik, Universität zu Köln, D-50937, Cologne, Germany
* e-mail: meierhofer@pit.physik.uni-tuebingen.de
Received:
16
December
2008
Revised:
16
February
2009
Accepted:
25
February
2009
Published online:
15
March
2009
The thermal neutron capture cross-sections of the 76Ge(n,
)77Ge and the 76Ge(n,)77m
Ge reactions have been measured by activating targets of isotopically enriched GeO2 through cold neutrons. The -decay spectra after the 
-decay of 77Ge and 77m
Ge were measured with HPGe detectors. From these spectra the cross-sections for the 76Ge(n,) reactions were derived relative to the cross-section of 197Au using the absolute emission probabilities of the observed -ray energies. The methods used in this work result in smaller systematic uncertainties than those obtained in previous experiments.
PACS: 28.20.Ka Thermal neutron cross-sections – / 27.50.+e 59
A
89 –
© SIF, Springer-Verlag Berlin Heidelberg, 2009
