Abstract
Keywords
1 Introduction
The interaction between solid-state matter and very intense lasers in the relativistic regime (
During this process, beams in the multi-MeV range[
At SPARC_LAB[
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2 Experimental setup
The high-power laser FLAME[
The experimental setup is shown in Figure
After the fast electrons, protons are also emitted in the MeV energy range, thanks to the extremely high (
3 Experimental results
The EOS diagnostic has been employed to study the fast electrons emitted during the interaction. In particular, from the longitudinal profile of the electric field carried by fast electrons, their temporal charge distribution has been retrieved, within a 8 ps temporal window with
Simultaneously, the proton energy spectra have also been recorded, thanks to the sub-ns resolution TOF diamond detector installed in our setup. Placed 1 m behind the target, with respect to the incoming laser beam, and along the same laser direction, it can provide temporal measurements with 800 ps resolution, thanks to the superficial interdigital structure shown in Figure
The TOF detector was covered by a 10-
4 Conclusions
In this work, we have shown typical experimental results provided by our temporally resolved diagnostics, detecting, simultaneously, both fast electrons and protons generated during FLAME laser–solid matter interactions. In this case, the target was made from 10-
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