Prompt electrons, plume fragmentation in a multi-layers structure and the existence of a double electron temperature inside the plasma bulk surviving to the plume expansion phase were observed from the data of a recent experiment in which a laser beam was focalized on a pure Aluminum target at power density of the order of 1012 W/cm2. These simultaneous observations, new in this range of intensity, clearly show the existence of ions bunch accelerated by the direct prompt electrons emission.
Ions acceleration driven by prompt electrons emission in ns-laser generated plasma at moderate intensity I=1012 W/cm2
TUDISCO, SALVATORE;PLUCHINO, ALESSANDRO;GRASSO, ROSARIA;RAPISARDA, Andrea;
2012-01-01
Abstract
Prompt electrons, plume fragmentation in a multi-layers structure and the existence of a double electron temperature inside the plasma bulk surviving to the plume expansion phase were observed from the data of a recent experiment in which a laser beam was focalized on a pure Aluminum target at power density of the order of 1012 W/cm2. These simultaneous observations, new in this range of intensity, clearly show the existence of ions bunch accelerated by the direct prompt electrons emission.File in questo prodotto:
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