Stopping Cross Sections in Boron of Low Atomic Number Atoms with Energies from 15 to 140 keV

Abstract

The electronic stopping cross sections in boron for atomic projectiles with Z≤ 11 have been determined in the energy interval 15 to 140 keV. Reasonable agreement is found with theory, however the previously observed periodic dependence of S_ε on the atomic number of the projectile is also evident. Results for the relative straggling in energy loss are reported for hydrogen projectiles in boron, carbon, and aluminium targets and for helium projectiles in boron and carbon. Theoretical straggling estimates agree reasonably well with the experimental results.