Generating energetic electron generation through staged-acceleration in the two-plasmon-decay instability in inertial confinement fusion

R. Yan, C. Ren, J. Li, A.V. Maximov, W.B. Mori, Zheng-Ming Sheng, F.S. Tsung

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on a
series of 2D, long-term ( 10 ps) particle-in-cell and fluid simulations under parameters relevant to
inertial confinement fusion. The simulations show that significant laser absorption and hot-electron
generation occur in the nonlinear stage. The hot electrons are stage accelerated from the low-density
region to the high-density region. New modes with small phase velocities develop in the low-density
region in the nonlinear stage and form the first stage for electron acceleration. Electron-ion collisions are
shown to significantly reduce the efficiency of this acceleration mechanism
LanguageEnglish
Article number175002
Number of pages5
JournalPhysical Review Letters
Volume108
Publication statusPublished - 27 Apr 2012

Fingerprint

inertial confinement fusion
hot electrons
electron acceleration
decay
phase velocity
electrons
simulation
fusion
collisions
fluids
cells
lasers
ions

Keywords

  • energetic electron generation
  • staged acceleration
  • inertial confinement fusion
  • two-plasmon-decay instability

Cite this

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title = "Generating energetic electron generation through staged-acceleration in the two-plasmon-decay instability in inertial confinement fusion",
abstract = "A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on aseries of 2D, long-term ( 10 ps) particle-in-cell and fluid simulations under parameters relevant toinertial confinement fusion. The simulations show that significant laser absorption and hot-electrongeneration occur in the nonlinear stage. The hot electrons are stage accelerated from the low-densityregion to the high-density region. New modes with small phase velocities develop in the low-densityregion in the nonlinear stage and form the first stage for electron acceleration. Electron-ion collisions areshown to significantly reduce the efficiency of this acceleration mechanism",
keywords = "energetic electron generation, staged acceleration, inertial confinement fusion, two-plasmon-decay instability",
author = "R. Yan and C. Ren and J. Li and A.V. Maximov and W.B. Mori and Zheng-Ming Sheng and F.S. Tsung",
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Generating energetic electron generation through staged-acceleration in the two-plasmon-decay instability in inertial confinement fusion. / Yan, R. ; Ren, C. ; Li, J.; Maximov, A.V. ; Mori, W.B.; Sheng, Zheng-Ming; Tsung, F.S.

In: Physical Review Letters, Vol. 108, 175002, 27.04.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Generating energetic electron generation through staged-acceleration in the two-plasmon-decay instability in inertial confinement fusion

AU - Yan, R.

AU - Ren, C.

AU - Li, J.

AU - Maximov, A.V.

AU - Mori, W.B.

AU - Sheng, Zheng-Ming

AU - Tsung, F.S.

PY - 2012/4/27

Y1 - 2012/4/27

N2 - A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on aseries of 2D, long-term ( 10 ps) particle-in-cell and fluid simulations under parameters relevant toinertial confinement fusion. The simulations show that significant laser absorption and hot-electrongeneration occur in the nonlinear stage. The hot electrons are stage accelerated from the low-densityregion to the high-density region. New modes with small phase velocities develop in the low-densityregion in the nonlinear stage and form the first stage for electron acceleration. Electron-ion collisions areshown to significantly reduce the efficiency of this acceleration mechanism

AB - A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on aseries of 2D, long-term ( 10 ps) particle-in-cell and fluid simulations under parameters relevant toinertial confinement fusion. The simulations show that significant laser absorption and hot-electrongeneration occur in the nonlinear stage. The hot electrons are stage accelerated from the low-densityregion to the high-density region. New modes with small phase velocities develop in the low-densityregion in the nonlinear stage and form the first stage for electron acceleration. Electron-ion collisions areshown to significantly reduce the efficiency of this acceleration mechanism

KW - energetic electron generation

KW - staged acceleration

KW - inertial confinement fusion

KW - two-plasmon-decay instability

UR - http://prl.aps.org/pdf/PRL/v108/i17/e175002

M3 - Article

VL - 108

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - 175002

ER -