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Recent experiments at ORELA and LANSCE, and their impact on compound nuclear models
(American Institute of Physics (AIP), 2008)
We present results from two recent sets of experiments to demonstrate the continuing impact of neutron time-of-flight data on the underlying assumptions and parameters of compound nuclear models.
Experimental astrophysical reaction rates of threshold (p,n)-reactions on Pd isotopes
(American Institute of Physics (AIP), 2008)
Astrophysical S-factors for (p,n) reactions on stable Pd isotopes derived from experimental cross sections were compared to statistical model predictions with the NON-SMOKER code. Satisfactory agreement was found. Reaction ...
The neutron capture cross sections of (237)Np(n,gamma) and (240)Pu(n,gamma) and its relevance in the transmutation of nuclear waste
(EDP Sciences, 2008)
Neutron capture cross sections of actinides are of great relevance for the Transmutation of Nuclear Waste in Accelerator Driven Systems (ADS) and Generation-IV reactors. The neutron capture cross sections of (237)Np and ...
Crucial inputs to nucleosynthesis calculations
(2008-01)
The first part of the paper discusses nuclear properties relevant to predict compound reactions. The second part addresses direct reactions with special emphasis on direct neutron capture.
Measurement of the (197)Au(n,gamma) cross section at n_TOF : towards a new standard
(EDP Sciences, 2008)
Two different detectors and techniques are employed at n_TOF facility, at CERN, to improve the accuracy of the neutron capture cross section of (197)Au(n,gamma): a total absorption calorimeter and a Set Of C(6)D(6). The ...
Measurement of neutron induced fission of (235)U, (233)U and (245)Cm with the FIC detector at the CERN n_TOF facility
(EDP Sciences, 2008)
A series of measurements of neutron induced fission cross section of various TRU isotopes have been performed at the CERN n_TOF spallation neutron facility, in the energy range from thermal to nearly 250 MeV. The experimental ...
Nuclear physics for the Re/Os clock
(2008-01)
Dating the age of the universe by the beta-decay of (187)Re (t(1/2) = 41.2 Gyr) requires the accurate assessment of the s-process reaction flow. The daughter nucleus (187)Os as well as its immediate s-only neighbor (186)Os ...
Investigation of proton-induced reactions on Germanium isotopes
(2008-01)
The cross sections of the (70)Ge(p,gamma)(71)As and (76)Ge(p, n)(76)As reactions have been measured in the energy range relevant for the astrophysical p-process (1.6-4.4 MeV). The proton beam was provided by the Van de ...
The measurement of the (206)Pb(n,gamma) cross section and stellar implications
(2008-01)
The neutron capture cross section of (206)Pb has been measured at the CERN n_TOF spectrometer using a setup of two C(6)D(6) detectors. In the energy interval from 1 eV to 600 keV the cross section is dominated by resonances, ...
The (234)U neutron capture cross section measurement at the n_TOF facility
(EDP Sciences, 2008)
The neutron capture cross-section of (234)U has been measured for energies from thermal up to the keV region in the neutron time-of-flight facility n_TOF, based on a spallation source located at CERN. A 4 pi BaF(2) array ...