JEFF-3.1 Evaluated Data: proton data

The proton special purpose library consists of 26 evaluated isotopes. The data are based primarily on a theoretical analysis with the nuclear model code TALYS. The nuclear model parameters of TALYS have been adjusted to reproduce the existing experimental data. For several materials that are of key importance to transmutation programs (ADS), valuable experimental data was provided by the EU FP5 HINDAS project. Together, this results in data files that provide a complete representation of nuclear data needed for transport, damage, heating, radioactivity and shielding applications over the incident proton energy range from 1 to 200 MeV.

This collection of isotopic evaluations is created by running TALYS with input parameters that do not, or only slightly, deviate from the default values. These isotopic evaluations are thus of comparable quality. The same set of nuclear models is used and, equally important, the same ENDF-6 formatting procedures for each isotope. These data files are complete in their description of reaction channels, and use a compact method to store the data. All transport data for particles, photons and residual nuclides are filed using a combination of MF=1, MF=3 and MF=6. This includes cross-sections, angular distributions, double-differential spectra, photon production cross-sections, and residual production (activation) cross-sections.

These evaluations can be used as both transport and activation libraries. The files have been checked by the BNL checking codes CHECKR, FIZCON and PSYCHE and have been successfully processed into an MCNP library by the processing code NJOY.