Particle-in-cell simulations of heat flux driven ion acoustic instability
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Detering, Frank; Rozmus, F; Brantov, W; Bychenknov, V.Y.; Capjack, C.E.; Sydora, R
Description
The return current instability of ion acoustic waves in a laser heated plasma is studied by means of a collisional particle-in-cell code and theoretical analysis in the regime of nonlocal heat transport. The physical scenario of localized, inverse Bremsstrahlung heating in a single laser hot spot, electron thermal transport, return current of cold electrons, instability of ion acoustic waves, and resulting ion acoustic turbulence are examined in a self-consistent kinetic collisional particle...[Show more]
dc.contributor.author | Detering, Frank | |
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dc.contributor.author | Rozmus, F | |
dc.contributor.author | Brantov, W | |
dc.contributor.author | Bychenknov, V.Y. | |
dc.contributor.author | Capjack, C.E. | |
dc.contributor.author | Sydora, R | |
dc.date.accessioned | 2015-12-07T22:55:13Z | |
dc.identifier.issn | 1070-664X | |
dc.identifier.uri | http://hdl.handle.net/1885/28296 | |
dc.description.abstract | The return current instability of ion acoustic waves in a laser heated plasma is studied by means of a collisional particle-in-cell code and theoretical analysis in the regime of nonlocal heat transport. The physical scenario of localized, inverse Bremsstrahlung heating in a single laser hot spot, electron thermal transport, return current of cold electrons, instability of ion acoustic waves, and resulting ion acoustic turbulence are examined in a self-consistent kinetic collisional particle simulation. The observed growth of the return current instability is in excellent agreement with predictions of a linear, nonlocal theory. Ion acoustic fluctuations contribute to the inhibition of thermal transport, which leads to the enhancement of the electron temperature in the center of a hot spot. Increased electron collisionality and hot ion tail production are the dominant saturation mechanisms of the return current instability in a one-dimensional geometry. The effects of the ion acoustic turbulence on other interaction processes are also discussed. | |
dc.publisher | American Institute of Physics (AIP) | |
dc.source | Physics of Plasmas | |
dc.subject | Keywords: Acoustic waves; Computer simulation; Electron transport properties; Heat flux; Inertial confinement fusion; Ions; Kinetic energy; Laser applications; Mathematical models; Plasmas; Thermal effects; Turbulence; Ion acoustic turbulence (IAT); Laser heated pl | |
dc.title | Particle-in-cell simulations of heat flux driven ion acoustic instability | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 12 | |
dc.date.issued | 2005 | |
local.identifier.absfor | 020204 - Plasma Physics; Fusion Plasmas; Electrical Discharges | |
local.identifier.ariespublication | u4048219xPUB57 | |
local.type.status | Published Version | |
local.contributor.affiliation | Detering, Frank, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Rozmus, F, University of Alberta | |
local.contributor.affiliation | Brantov, W, University of Alberta | |
local.contributor.affiliation | Bychenknov, V.Y., University of Alberta | |
local.contributor.affiliation | Capjack, C.E., University of Alberta | |
local.contributor.affiliation | Sydora, R, University of Alberta | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 1 | |
local.bibliographicCitation.startpage | 12321 | |
local.identifier.doi | 10.1063/1.1835344 | |
dc.date.updated | 2015-12-07T12:53:41Z | |
local.identifier.scopusID | 2-s2.0-20444500533 | |
Collections | ANU Research Publications |
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