Abstract

Auger electron emission spectra from 2 MeV C + ion excited by collisions with thin carbon foils and Ne gas are presented. The similarity of qualitative features for the C + → C (foil) and C + → Ne spectra indicates the similarity of ionization mechanisms for beam foil and beam gas excitation. The spectra were normalized to the lowest lying Li-like quartet state (1s 2s 2p) 4P 0 in carbon by comparison with time delayed foil excited electron decay-in-flight spectra. Comparison to Hartree-Fock calculated transition energies indicates that transitions in three and four electron carbon ions dominate the prompt spectra.

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