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

Bailly-Grandvaux, M and Kim, J and Krauland, C M and Zhang, S and Dozières, M and Wei, M S and Theobald, W and Grabowski, P E and Santos, J J and Nicolai, Ph and McKenna, P and Desjarlais, M P and Beg, F N (2020) Transport of kJ-laser-driven relativistic electron beams in cold and shock-heated vitreous carbon and diamond. New Journal of Physics, 22 (3). 033031. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/ab7a06)

[thumbnail of Bailly-Grandvaux-etal-NJP-2020-Transport-of-kJ-laser-driven-relativistic-electron-beams]
Preview
 Text. Filename: Bailly_Grandvaux_etal_NJP_2020_Transport_of_kJ_laser_driven_relativistic_electron_beams.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo
Download (1MB)| Preview

Abstract

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.

  • Item type:Article
    ID code:71649
    Dates:
    Date
    Event
    23 March 2020
    Published
    25 February 2020
    Published Online
    25 February 2020
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:03 Mar 2020 16:35
    Last modified:22 Apr 2024 00:43
    URI:https://strathprints.strath.ac.uk/id/eprint/71649
CORE (COnnecting REpositories)