Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1687139 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2006 | 5 Pages |
Abstract
Electron spectra were measured at GANIL with different heavy ions (C–Mo) and various charge states q (q = 6–39) at fixed projectile velocity v (v = 19 atomic units, 9.2 MeV/u). A projectile dependent broadening of ion induced KVV Auger electron peaks from carbon targets was observed. From this broadening, one can deduce a mean “electronic temperature” of the heavy ion induced track at the corresponding Auger decay time (10 fs). We compare the measured temperature values to the predictions of an inelastic-thermal spike model, which takes into account the electron–phonon coupling. The model underestimates the experimental values, but reproduces the increase with ion charge.
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Authors
M. Caron, H. Rothard, M. Toulemonde, B. Gervais, M. Beuve,