Anomalous energy dissipation of electron current pulses propagating through an inhomogeneous collisionless plasma medium

Yadav, Sharad Kumar ; Das, Amita ; Kaw, Predhiman ; Sengupta, Sudip (2009) Anomalous energy dissipation of electron current pulses propagating through an inhomogeneous collisionless plasma medium Physics of Plasmas, 16 (4). 040701_1-040701_4. ISSN 1070-664X

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Official URL: http://pop.aip.org/resource/1/phpaen/v16/i4/p04070...

Related URL: http://dx.doi.org/10.1063/1.3122939

Abstract

The evolution of fast rising electron current pulses propagating through an inhomogeneous plasma has been studied through electron magnetohydrodynamic fluid simulations. A novel process of anomalous energy dissipation and stopping of the electron pulse in the presence of plasma density inhomogeneity is demonstrated. The electron current essentially dissipates its energy through the process of electromagnetic shock formation in the presence of density inhomogeneity. A direct relevance of this rapid energy dissipation process to the fast ignition concept of laser fusion is shown.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Laser Fusion; Plasma Density; Plasma Interactions; Plasma Magnetohydrodynamics; Plasma Shock Waves; Plasma Simulation
ID Code:70461
Deposited On:21 Nov 2011 10:19
Last Modified:18 May 2016 16:31

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