Beam-target interaction of intense ion beams: Theory and experiment

Work has continued toward the goal of developing and experimentally verifying a numerical model that can accurately predict the stopping power of any ion in any target material at any density, temperature, and degree of ionization. We will review our most recent theoretical work to compute the stopping power of low-Z ions in partially ionized material. We are presently attempting to develop an accurate description of the atomic-electron contribution to the stopping power, especially around the maximum of the curve. Our atomic-electron stopping-power models (e.g., the Local Oscillator Model, the Generalized Oscillator Strength Model, etc.) use realistic descriptions of atomic and solid-state charge densities and energy levels.