Energy exchange via multi-species streaming in laser-driven ion acceleration

M. King; R. J. Gray; H. W. Powell; R. Capdessus; P. McKenna

Energy exchange via multi-species streaming in laser-driven ion acceleration

M. King, R. J. Gray, H. W. Powell, R. Capdessus, P. McKenna

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Abstract

Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.

Original language	English
Number of pages	8
Journal	Plasma Physics and Controlled Fusion
Publication status	Accepted/In press - 9 Aug 2016

Keywords

plasma instabilities
laser plasma interaction
laser plasma acceleration
ion acceleration
electron dynamics
laser pulse
particle-in-cell simulations
ion-ion acoustic instability

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King-etal-PPCF2016-Energy-exchange-via-multi-species-streamingAccepted author manuscript, 5.84 MB

Cite this

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title = "Energy exchange via multi-species streaming in laser-driven ion acceleration",

abstract = "Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.",

keywords = "plasma instabilities, laser plasma interaction, laser plasma acceleration, ion acceleration, electron dynamics, laser pulse, particle-in-cell simulations, ion-ion acoustic instability",

author = "M. King and Gray, {R. J.} and Powell, {H. W.} and R. Capdessus and P. McKenna",

note = "This is an author-created, un-copyedited version of an article accepted for publication in Plasma Physics and Controlled Fusion. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/journal/0741-3335",

year = "2016",

month = aug,

day = "9",

language = "English",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

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TY - JOUR

T1 - Energy exchange via multi-species streaming in laser-driven ion acceleration

AU - King, M.

AU - Gray, R. J.

AU - Powell, H. W.

AU - Capdessus, R.

AU - McKenna, P.

N1 - This is an author-created, un-copyedited version of an article accepted for publication in Plasma Physics and Controlled Fusion. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/journal/0741-3335

PY - 2016/8/9

Y1 - 2016/8/9

N2 - Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.

AB - Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.

KW - plasma instabilities

KW - laser plasma interaction

KW - laser plasma acceleration

KW - ion acceleration

KW - electron dynamics

KW - laser pulse

KW - particle-in-cell simulations

KW - ion-ion acoustic instability

UR - http://iopscience.iop.org/journal/0741-3335

M3 - Article

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

ER -

Energy exchange via multi-species streaming in laser-driven ion acceleration

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Keywords

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