11 papers
Improved Mo neutron resonance parameters from neutron capture and transmission measurements at n_TOF and GELINA
R. Mucciola, S. Cristallo, S. Kopecky +140
We report high-resolution measurements of the cross section in the neutron energy range from a few eV up to about 250 keV, performe…
First Nb() Measurement: Constraining the Nucleosynthetic Origin of Mo in Presolar Grains
J. Balibrea-Correa, J. Lerendegui-Marco, C. Domingo-Pardo +136
Isotopic measurements of presolar silicon carbide grains from dying stars have revealed a puzzling overabundance of Mo that stellar nucleosynthesis models have failed to rep…
Radiative neutron capture cross section of Pu measured at n_TOF-EAR1 in the unresolved resonance region up to 600 keV
J. Lerendegui-Marco, C. Guerrero, E. Mendoza +133
Accurate neutron capture cross sections are essential for the design and operation of fast reactors using MOX fuels. For Pu, the Nuclear Energy Agency (NEA) recommends 8--1…
The s Process and Beyond
Maria Lugaro, Marco Pignatari, René Reifarth +1
Neutron captures produce the vast majority of abundances of elements heavier than iron in the Universe. Beyond the classical slow (s) and rapid (r) processes, there is observationa…
A prototype neutron-detector array for future deep-underground s-process studies
Thomas Chillery, David Rapagnani, Chemseddine Ananna +12
We report a novel neutron-detection approach employing an EJ-309 liquid scintillator surrounded by six 3He proportional counters. Tests were performed at the FRANZ facility of the…
The s process in massive stars, a benchmark for neutron capture reaction rates
Marco Pignatari, Roberto Gallino, Rene Reifarth
A clear definition of the contribution from the slow neutron-capture process (s process) to the solar abundances between Fe and the Sr-Zr region is a crucial challenge for nuclear…