Slow electrons from clusters in strong Xray pulses

Abstract

Electrons released from clusters through strong Xray pulses show broad kinetic-energy spectra, extending from the atomic excess energy down to the threshold, where usually a strong peak appears. These low-energy electrons are normally attributed to evaporation from the nano-plasma formed in the highly-charged clusters. Here, it is shown that also directly emitted photo electrons generate a pronounced spectral feature close to threshold. Furthermore, we give an analytical approximation for the direct photo-electron spectrum.

8 pages, 3 figures

References in corpus (4)

• Ionization heating in rare-gas clusters under intense XUV laser pulses
• Ionization and charge migration through strong internal fields in clusters exposed to intense X-ray pulses
• Dynamics of photo-activated Coulomb complexes
• Prevailing features of X-ray induced molecular electron spectra revealed with fullerenes