title HOLLOW ATOM DYNAMICS AT C60 COVERED SURFACES authors C. Laulhé, S. Hoekstra, H. Khemliche, T. Schlathölter, A. Närmann, R. Hoekstra, R. Morgenstern affiliation KVI Atomic Physics, Rijksuniversiteit Groningen, Zernikelaan 25, 9747 AA Groningen summary We have studied the formation and decay of hollow atoms at Au surfaces, covered by thin LiF and C60 films with thicknesses in the monolayer range. Energy spectra of electrons arising from collisions of hydrogenic O7+ and N6+ ions on these surfaces were measured and analyzed. We observe that for a coverage with a C60 monolayer the electron filling of the projectile L-shell proceeds much faster than for clean or LiF covered Au surfaces.