Transport of kJ-laser-driven relativistic electron beams in cold and shock-heated vitreous carbon and diamond - Archive ouverte HAL
Article Dans Une Revue New Journal of Physics Année : 2020

Transport of kJ-laser-driven relativistic electron beams in cold and shock-heated vitreous carbon and diamond

M. Bailly-Grandvaux
J. Kim
  • Fonction : Auteur
C.M. Krauland
  • Fonction : Auteur
S. Zhang
M. Dozières
  • Fonction : Auteur
M.S. Wei
  • Fonction : Auteur
W. Theobald
  • Fonction : Auteur
P.E. Grabowski
  • Fonction : Auteur
P. Mckenna
  • Fonction : Auteur
M.P. Desjarlais
  • Fonction : Auteur
F.N. Beg
  • Fonction : Auteur

Résumé

We report experimental results on relativistic electron beam (REB) transport in a set of cold and shock-heated carbon samples using the high-intensity kilojoule-class OMEGA EP laser. The REB energy distribution and transport were diagnosed using an electron spectrometer and x-ray fluorescence measurements from a Cu tracer buried at the rear side of the samples. The measured rear REB density shows brighter and narrower signals when the targets were shock-heated. Hybrid PIC simulations using advanced resistivity models in the target warm-dense-matter (WDM) conditions confirm this observation. We show that the resistivity response of the media, which governs the self-generated resistive fields, is of paramount importance to understand and correctly predict the REB transport.

Dates et versions

hal-02557788 , version 1 (28-04-2020)

Identifiants

Citer

M. Bailly-Grandvaux, J. Kim, C.M. Krauland, S. Zhang, M. Dozières, et al.. Transport of kJ-laser-driven relativistic electron beams in cold and shock-heated vitreous carbon and diamond. New Journal of Physics, 2020, 22 (3), pp.033031. ⟨10.1088/1367-2630/ab7a06⟩. ⟨hal-02557788⟩
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