[Zurück]

C. Massimi, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, -. nTOF Collaboration:
"¹⁹⁷Au(n,γ ) cross section in the resonance region";
Physical Review C, 81 (2010), 044616; S. 1 - 22.

The (n,γ ) cross section of 197Au has been measured at n TOF in the resolved resonance region, up to 5 keV,with
the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements
were performed with two different experimental setup and detection techniques, the total energy method based on
C6D6 detectors, and the total absorption calorimetry based on a 4π BaF2 array. By comparing the data collected
with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis
for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between
the n TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few
resonances not included in the existing databases have also been observed.

http://dx.doi.org/10.1103/PhysRevC.81.044616