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 PDF
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.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
Authors
, , , , ,