Vanadium Cross Section Measurements by the Activation Technique and Evaluations from Threshold to 20 MeV

Abstract

Cross sections for the reaction ^natV(n, xα)⁴⁷Sc were measured from 11.7 to 20.5 MeV with the aim to improve the data base and resolve discrepancies. Simultaneously, new measurements were done for the ⁵¹ V(n, α)⁴⁸Sc reaction, and some additional experimental data were added to those obtained recently for the ⁵¹V(n, p)⁵¹Ti reaction. Calculations were performed using the STAPRE-H statistical model code with pre-equilibrium contributions that were estimated with a modified geometry dependent hybrid model. A physically consistent description of all pertinent experimental information was attempted. In most cases a description of the experimental data is obtained that is sufficiently accurate to consider adopting the new model calculations in evaluated data files.

Keywords:

• nuclear reactions
• measured cross sections
• statistical model
• preequilibrium emission
• vanadium
• gas production
• evaluation
• activation