Modeling of the driver transverse profile for laser wakefield electron acceleration at APOLLON research facility
In: Physics of Plasmas, Jg. 30 (2023-05-01)
Online
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Zugriff:
International audience; The quality of electron bunches accelerated by laser wakefields is highly dependant on the temporal and spatial features of the laser driver. Analysis of experiments performed at APOLLON PW-class laser facility shows that spatial instabilities of the focal spot, such as shot-to-shot pointing fluctuations or asymmetry of the transverse fluence, lead to charge and energy degradation of the accelerated electron bunch. It is shown that PIC simulations can reproduce experimental results with a significantly higher accuracy when the measured laser asymmetries are included in the simulated laser's transverse profile, compared to simulations with ideal, symmetric laser profile. A method based on a modified Gerchberg-Saxton iterative algorithm is used to retrieve the laser electric field from fluence measurements in vacuum in the focal volume, and accurately reproduce experimental results using PIC simulations, leading to simulated electron spectra in close agreement with experimental results, for the accelerated charge, energy distribution and pointing of the electron beam at the exit of the plasma.
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Modeling of the driver transverse profile for laser wakefield electron acceleration at APOLLON research facility
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Autor/in / Beteiligte Person: | Moulanier, I. ; Dickson, L. T. ; Ballage, C. ; Vasilovici, O. ; Gremaud, A. ; S. Dobosz Dufrénoy ; Delerue, N. ; Bernardi, L. ; Mahjoub, A. ; Cauchois, A. ; Specka, A. ; Massimo, F. ; Maynard, G. ; Cros, B. ; Laboratoire de physique des gaz et des plasmas (LPGP) ; Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire Interactions, Dynamiques et Lasers (ex SPAM) (LIDyl) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab) ; Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire Leprince-Ringuet (LLR) ; Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) ; ANR-10-EQPX-0025,CILEX,Centre Interdisciplinaire Lumière Extrême(2010) |
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Zeitschrift: | Physics of Plasmas, Jg. 30 (2023-05-01) |
Veröffentlichung: | AIP Publishing, 2023 |
Medientyp: | unknown |
ISSN: | 1089-7674 (print) ; 1070-664X (print) |
DOI: | 10.1063/5.0142894 |
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