Proton total reaction cross sections at 34 MeV

Abstract

Proton total reaction cross-sections have been measured for five elements at 34±2.5 MeV. Attenuation measurements were made with a d E/ dχtelescope and a biased E counter, in poor geometry. Corrections for elastic and inelastic scattering were determined experimentally. The results have been compared with optical model analysis to select sets of parameters fitting the elastic scattering angular distributions equally well. For carbon the measurements favour the solution with the smaller radius constant. For the other elements the optical model predictions are in good overall agreement but further analysis is required.