NDLI: Dynamics of a positive probe in ExB drifting plasma: 3-D electromagnetic particle-in-cell simulations

Content Provider	IEEE Xplore Digital Library
Author	Heinrich, J.R. Cooke, D.L.
Copyright Year	2013
Description	Author affiliation: Air Force Res. Lab. Kirtland AFB, Kirtland AFB, NM, USA (Heinrich, J.R.; Cooke, D.L.)
Abstract	Summary form only given. We present the recent results of a series of electromagnetic particle-in-cell simulations, taken over a broad range of parameter space, that modeled a positive probe in E×B drifting plasma. These results address two fundamental problems: momentum coupling in magnetized flowing plasma and the plasma/sheath dynamics of a positive probe in E×B drifting plasma. In these simulations we observed rarefied electron wings develop along the magnetic field in the wake of the positive probe and a quasi-trapped electron region. Depending on the parameter regime, either electrostatic or electromagnetic waves formed in the probe's wake (directly downstream of the probe or along the rarefied electron wings), similar to predictions by Stenzel and $Urrutia^{1}.$ Additionally, we report on sheath dynamics of a positive probe in E×B drifting plasma, which were clearly resolved and indicated multiple electron heating processes. These electron heating processes included electron heating due to the quasi-trapped electron mode as well as electron heating due to wave-particle interactions in the ram region of the probe and along the electron rarefied wings. These electron heating processes significantly affect the overall current collected by the $probe^{2}.$
Starting Page	1
Ending Page	1
File Size	115727
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6634915
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Probes Plasmas Heating Electromagnetics Atmospheric modeling Solid modeling Dynamics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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