Neutron capture cross section of 185Re leading to ground and isomer states of 186Re in the keV-neutron energy region

T. Katabuchi, K. Takebe, S. Umezawa, R. Fujioka, T. Saito, M. Igashira, Yang Sun
2018 EPJ Web of Conferences  
The neutron capture cross section of 185 Re was measured in the astrophysically important energy region. Measurements were made using a neutron beam from a 7 Li(p, n) 7 Be neutron source with energies ranging from 3 to 90 keV. Two different experimental techniques, time-of-flight (TOF) and activation methods, were employed. In the TOF experiments, the total neutron capture cross section of 185 Re was determined by the pulse-height weighting technique. In the activation method, the partial
more » ... , the partial capture cross section leading to the ground state of 186 Re was measured by detecting decay γ-rays from neutron activated samples. The present cross section values were compared with evaluated cross section data and previous measurements. The difference between the TOF and activation results was smaller than experimental uncertainties. This suggests that the production cross section of isomer states of 186 Re is very small.
doi:10.1051/epjconf/201817803005 fatcat:rsnn5eljjbc5bgmkllioxfyd3y