We report on the commissioning of the ELIMAIA beamline laser-plasma Ion Accelerator carried out at relativistic intensities (~1021 W/cm2) with the high repetition-rate, high peak-power L3-HAPLS (>10J in 30 fs) laser available at the ELI Beamlines user facility.
Targets of different composition and thickness were used to optimize the performance of the Ion Accelerator. In the best conditions, we were able to reach proton cutoff energies around 30 MeV and fluxes above 1011/sr.
Moreover, we have demonstrated an excellent reliability and shot-to-shot stability (1-2% in energy) of the Ion Accelerator up to a repetition rate of 0.5 Hz for several hundreds of consecutive shots, along with on-shot target positioning and data acquisition and analysis systems. These results demonstrate the robustness of the developed technology available for users at the ELIMAIA beamline, thus paving the way towards its future use for fundamental and applied research, including biomedical ones.
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