Energy Loss of Slow H- to Be-Like Ions in Electron Gas

摘要

The electronic stopping power and the energy loss straggling of low velocity H-, He-, Li- and Be-like ions in the degenerate electron gas were calculated. The Hartree-Fock-Slater description of the ion and the dielectric function method were used. The stopping and straggling effective charges Z_(eff) of an ion were analysed. They are found to differ with each other and to depend on the electron gas density r_s, on the ion atomic number Z_i and on N_i, the number of electrons carried by the ion.