Relativistic electron transport through carbon foils

We present a theoretical study of convoy electron emission resulting from t ransmission of relativistic 390 MeV/amu Ar17+ ions through carbon foils of various thicknesses. Our approach is based on a Langevin equation describin g the random walk of the electron initially bound to the argon nucleus and later in the continuum, The calculated spectra of ejected electrons in the forward direction exhibit clear signatures of multiple scattering and are f ound to be in good agreement with recent experimental data.