Evaluation of the (n,p) cross sections of natural Ti and its isotopes from thresholds to 20 MeV

The titanium isotopes (n,p) cross sections are based upon renormalized experimental data or deduced from statistical model calculations where measurements were not available. Some of these cross sections, notably the 46Ti(n,p), 47Ti(n,p) and 48Ti(n,p), which find wide use as dosimetry indicators, are compared here with the corresponding ENDF/B-IV dosimetry file data. The (n,p) elemental cross section is constructed from the weighted isotopic components. Our evaluation and the corresponding ENDF/B-IV data are compared showing the great difference between both results, especially below 10 MeV. Moreover the new data exhibit some structures characteristic of the 47Ti(n,p) cross section. The present Ti(n,p) data are intended to be included in the ENDF-B-V evaluation