γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime

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Capdessus, R. and Lobet, M. and d'Humieres, E. and Tikhonchuk, V. T. (2014) γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime. Physics of Plasmas, 21. 123120. ISSN 1070-664X (https://doi.org/10.1063/1.4904813)

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Abstract

A new source of radiation can be created with a laser pulse of intensity 1023W/cm2 interacting with a slightly overdense plasma. Collective effects driven by the electrostatic field significantly enhance the synchrotron radiation. They impact on the laser energy repartition leading to a specific emission but also constitute a crucial element for the intense radiation production. They allow electrons to be accelerated over a length up to 10 laser wavelengths favoring emission of an intense radiation. It is shown that charge separation field depends on the ion mass and target thickness but also on laser polarization. These phenomena are studied with an one dimensional relativistic particle-in-cell code accounting for the classical radiation reaction force.

ORCID iDs

Capdessus, R. ORCID logoORCID: https://orcid.org/0000-0002-3403-6023, Lobet, M., d'Humieres, E. and Tikhonchuk, V. T.;
  • Item type:Article
    ID code:57066
    Dates:
    Date
    Event
    30 December 2014
    Published
    8 December 2014
    Accepted
    Notes:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:25 Jul 2016 09:13
    Last modified:11 Nov 2024 11:28
    URI:https://strathprints.strath.ac.uk/id/eprint/57066
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