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

R. Capdessus, M. Lobet, E. d'Humieres, V. T. Tikhonchuk

Research output: Contribution to journalArticle

11 Citations (Scopus)

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.
LanguageEnglish
Article number123120
Number of pages11
JournalPhysics of Plasmas
Volume21
DOIs
Publication statusPublished - 30 Dec 2014

Fingerprint

laser target interactions
polarization (charge separation)
gamma rays
augmentation
radiation
lasers
target thickness
relativistic particles
synchrotron radiation
electric fields
polarization
pulses
wavelengths
ions
electrons

Keywords

  • radiation
  • gamma-ray
  • laser pulse
  • synchrotron radiation
  • electron acceleration
  • intense radiation
  • laser polarization
  • high intensity laser pulse interaction
  • electron equation of motion
  • electrostatic field
  • synchrotron radiation computation algorithm
  • simulation parameters
  • laser plasma interaction
  • laser absorption
  • target thickness
  • charge separation field

Cite this

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title = "γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime",
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.",
keywords = "radiation, gamma-ray, laser pulse, synchrotron radiation, electron acceleration, intense radiation, laser polarization, high intensity laser pulse interaction, electron equation of motion, electrostatic field, synchrotron radiation computation algorithm, simulation parameters, laser plasma interaction, laser absorption, target thickness, charge separation field",
author = "R. Capdessus and M. Lobet and E. d'Humieres and Tikhonchuk, {V. T.}",
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γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime. / Capdessus, R.; Lobet, M.; d'Humieres, E.; Tikhonchuk, V. T.

In: Physics of Plasmas, Vol. 21, 123120, 30.12.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime

AU - Capdessus, R.

AU - Lobet, M.

AU - d'Humieres, E.

AU - Tikhonchuk, V. T.

N1 - This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.

PY - 2014/12/30

Y1 - 2014/12/30

N2 - 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.

AB - 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.

KW - radiation

KW - gamma-ray

KW - laser pulse

KW - synchrotron radiation

KW - electron acceleration

KW - intense radiation

KW - laser polarization

KW - high intensity laser pulse interaction

KW - electron equation of motion

KW - electrostatic field

KW - synchrotron radiation computation algorithm

KW - simulation parameters

KW - laser plasma interaction

KW - laser absorption

KW - target thickness

KW - charge separation field

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