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

Yan, R. and Ren, C. and Li, J. and Maximov, A.V. and Mori, W.B. and Sheng, Zheng-Ming and Tsung, F.S. (2012) Generating energetic electron generation through staged-acceleration in the two-plasmon-decay instability in inertial confinement fusion. Physical Review Letters, 108. 175002. ISSN 1079-7114

[thumbnail of PhysRevLett.108.175002.pdf]
Preview
 PDF. Filename: PhysRevLett.108.175002.pdf
Final Published Version
Download (1MB)| Preview

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

ORCID iDs

Yan, R., Ren, C., Li, J., Maximov, A.V., Mori, W.B., Sheng, Zheng-Ming ORCID logoORCID: https://orcid.org/0000-0002-8823-9993 and Tsung, F.S.;
CORE (COnnecting REpositories)