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)

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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.

ORCID iDs

Bailly-Grandvaux, M, Kim, J, Krauland, C M, Zhang, S, Dozières, M, Wei, M S, Theobald, W, Grabowski, P E, Santos, J J, Nicolai, Ph, McKenna, P ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, Desjarlais, M P and Beg, F N;
  • 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:11 Nov 2024 12:36
    URI:https://strathprints.strath.ac.uk/id/eprint/71649
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