Author Affiliations
Abstract
1 Institute of Plasma Physics and Lasers, Hellenic Mediterranean University Research Centre, 74100Rethymno, Greece
2 Department of Physics, University of Ioannina, 45110Ioannina, Greece
3 Department of Electronic Engineering, Hellenic Mediterranean University, 73133Chania, Greece
4 School of Production Engineering and Management, Technical University of Crete, 73100Chania, Greece
5 Department of Music Technology and Acoustics, Hellenic Mediterranean University, 74133Rethymno, Greece
The rapid development of high-intensity laser-generated particle and photon secondary sources has attracted widespread interest during the last 20 years not only due to fundamental science research but also because of the important applications of this developing technology. For instance, the generation of relativistic particle beams, betatron-type coherent X-ray radiation and high harmonic generation have attracted interest from various fields of science and technology owing to their diverse applications in biomedical, material science, energy, space, and security applications. In the field of biomedical applications in particular, laser-driven particle beams as well as laser-driven X-ray sources are a promising field of study. This article looks at the research being performed at the Institute of Plasma Physics and Lasers (IPPL) of the Hellenic Mediterranean University Research Centre. The recent installation of the ZEUS 45 TW laser system developed at IPPL offers unique opportunities for research in laser-driven particle and X-ray sources. This article provides information about the facility and describes initial experiments performed for establishing the baseline platforms for secondary plasma sources.
high power laser laser plasma secondary sources 
High Power Laser Science and Engineering
2021, 9(4): 01000e53
Author Affiliations
Abstract
1 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstra?e 1, 64291 Darmstadt, Germany
2 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstra?e 1, 64291 Darmstadt, Germany
3 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstra?e 1, 64291 Darmstadt, Germany
4 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstra?e 1, 64291 Darmstadt, Germany
5 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstra?e 1, 64291 Darmstadt, Germany
6 Friedrich-Schiller-Universit?t, Fürstengraben 1, 07743 Jena, Germany
We present a study of laser-driven ion acceleration with micrometre and sub-micrometre thick targets, which focuses on the enhancement of the maximum proton energy and the total number of accelerated particles at the PHELIX facility. Using laser pulses with a nanosecond temporal contrast of up to $10^{-12}$ and an intensity of the order of $10^{20}~\text{W}/\text{cm}^{2}$, proton energies up to 93 MeV are achieved. Additionally, the conversion efficiency at $45^{\circ }$ incidence angle was increased when changing the laser polarization to p, enabling similar proton energies and particle numbers as in the case of normal incidence and s-polarization, but reducing the debris on the last focusing optic.
high power laser proton acceleration secondary sources 
High Power Laser Science and Engineering
2020, 8(2): 02000e24

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