NEUTRALIZATION OF H-LIKE IONS AT A W-SURFACE - VIA AUGER CASCADES

We present the electron spectra for O7+ on a polycrystalline tungsten surface at collision energies between 100 eV and 100 keV. We find clearly resolved structures from projectile KLL- and LMM Auger electrons. The relative intensities of these peaks show that the n = 2 level is partly populated by 'side-feeding' processes. The time dependence of the KLL peak and the LMM peak can be described by a single exponential.