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Determining reaction cross sections via characteristic X-ray detection : alpha-induced reactions on Tm-169 for the astrophysical gamma-process
(2011-01-17)
The cross sections of the Tm-169(alpha, gamma)Lu-173 and Tm-169(alpha,n)Lu-172 reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capture-decay ...
How important is the Family? : Alpha nuclear potentials and p-process nucleosynthesis
(SISSA, 2011-01)
In this work we present the results from the analysis of the experimentally measured angular distributions of the reaction 106Cd(α , α )106 Cd at several different energies around the Coulomb barrier. The difficulties that ...
Reaction rate sensitivity of 44Ti production in massive stars and implications of a thick target yield measurement for 40Ca(alpha,gamma)44Ti
(SISSA, 2011-01)
The dynamic synergy between observation, theory, and experiment developed over many years around the field of gamma-ray astronomy has as its ultimate goal observations of specific radionuclides informing our understanding ...
The Neutron Time-Of-Flight Facility n_TOF At CERN: Phase II
(American Institute of Physics (AIP), 2011)
Neutron-induced reactions are studied at the neutron time-of-flight facility n_TOF at CERN. The facility uses 6 similar to ns wide pulses of 20 GeV/c protons impinging on a lead spallation target. The large neutron energy ...
Astrophysics at n_TOF Facility at CERN
(IOP Publishing Ltd., 2011)
The neutron time of flight (n_TOF) facility at CERN is a spallation neutron source with white neutron energy spectrum (from thermal to several GeV), covering the full energy range of interest for nuclear astrophysics, in ...
The Np-237(n,f) cross section at the CERN n-TOF facility
(American Institute of Physics (AIP), 2011)
The Np-237(n,f) cross sections have been measured at the n-TOF facility relative to the U-235 and U-238 fission cross sections. The n-TOF spallation neutron source at CERN is characterized by a high intensity flux, an ...
First Measurement of the 64Ni(gamma,n)63Ni Cross Section
(SISSA, 2011-01)
In the past 10 years new and more accurate stellar neutron capture cross section measurements have changed and improved the abundance predictions of the weak s process. Among other elements in the region between iron and ...
Impact of rotation on the weak s-process
(SISSA, 2011-01)
The weak s process takes place in massive stars and it produces the majority of s-only isotopes in the atomic mass range from 60 to 90. This process is qualitatively well understood. However, there are still large uncertainties ...
Origin of the p-Nuclei in Explosive Nucleosynthesis
(SISSA, 2011-01)
A number of naturally occurring, proton-rich nuclides (the p-nuclei) cannot be made in the s- and r-process. It has been found that massive stars can produce p-nuclei through photodisintegration of pre-existing intermediate ...
Neutron-induced fission cross-section of U-233 in the energy range 0.5 <E-n <20 MeV
(2011-01)
The neutron-induced fission cross-section of U-233 has been measured at the CERN n_TOF facility relative to the standard fission cross-section of U-235 between 0.5 and 20MeV. The experiment was performed with a fast ...