Program - Brookhaven National Laboratory

various benchmark tests. The mainly revised quantities are the resonance parameters, fission cross sections,
inelastic and elastic scattering cross sections as well as angular distributions etc. The benchmark tests
indicate that the promising results were obtained when the renewal evaluated data of 233 U and will be
used to instead of the 233 U evaluated data in CENDL-3.1.
Corresponding author: Guochang Chen
PR 100
Updated and Revised Neutron Reaction Data for Np
Guochang Chen, China Nuclear Data Center, China Institute of Atomic Energy. Wentian Cao, School of
Physics & State Key Laboratory of Nuclear Physics and Technology, Peking University. Baosheng YU,
China Nuclear Data Center, China Institute of Atomic Energy. Guoyou TANG, School of Physics &
State Key Laboratory of Nuclear Physics and Technology, Peking University.
The updated and revised evaluation of a complete set of n + 236−239 Np nuclear data from 10 −5 eV ∼ 20
MeV were carried out and recommended based on the evaluated experimental data. The mainly revised
quantities are the resonance parameters, fission cross sections, inelastic and elastic scattering cross sections
as well as angular distributions etc. The promising results were obtained when the renewal evaluated data
of 236−239 Np will be used to instead of the Np evaluated data in CENDL-3.1.
PR 101
Modeling Capture Gamma Rays for Neutron Energies Above the Thermal Region
J.E. Escher, W.E. Ormand, B. W. Sleaford, and N.C. Summers, Lawrence Livermore National
Laboratory. F. Gunsing, CEA Saclay, Gif-sur-Yvette, France.
Various applications require information on gamma-ray line spectra following neutron capture on nuclei
across the isotopic chart. The Evaluated Gamma-ray Activation File (EGAF) provides gamma-ray spectra
for thermal neutron capture on many isotopes, but gives no information for reactions occurring at higher
energies. Very limited experimental information is available for capture in the resolved resonance region,
detailed decay spectra from the unresolved resonance region or the Hauser-Feshbach regime are typically not
considered. This contribution will present modeling efforts aimed at supplementing available information.
The underlying statistical assumptions and their limitations will be discussed, as well as comparisons
between model results and measurements, where available. * This work is performed under the auspices
of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-
07NA27344.
PR 102
Microscopic Optical Potential of Nucleon, Deuteron, Helium-3 and Alpha Based on Skyrme
Interactions
Yinlu Han, Yongli Xu, Hairui Guo, Qingbiao Shen, China Institute of Atomic Energy, P. O. Box
275(41), Beijing 102413, People’s Republic of China.
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