Comparison of experimental and theoretical ranges of heavy ions in the low energy region

Abstract

Some theoretical and experimental ranges and straggling values of heavy ions are compared in the energy region where the nuclear stopping dominates. In the calculations, two Monte-Carlo methods and the principles of the LSS theory were used. In most cases rather good consistency is obtained, if Dirac-Fock electron distributions and Monte-Carlo methods are used. The effects of the solid properties of the stopping medium on the ranges are estimated to be small.

A stopping power curve based on a mean Dirac-Fock potential, when the LSS theory is corrected, is presented.