[Table of Contents]

Plasma and Fusion Research

Volume 7, 1301002 (2012)

Letters


Super-High Magnetic Fields in Spatially Inhomogeneous Plasma
Anatoly F. NASTOYASHCHIY
RF SRC Troitsk Institute for Innovation and Fusion Research (TRINITI), ul. Pushkovykh, vladenie 12, 142190 Troitsk, Moscow region, Russia
(Received 28 July 2011 / Accepted 30 November 2011 / Published 26 July 2012)

Abstract

The new phenomenon of a spontaneous magnetic field in spatially inhomogeneous plasma is found. The criteria for instability are determined, and both the linear and nonlinear stages of the magnetic field growth are considered; it is shown that the magnetic field can reach a considerable magnitude, namely, its pressure can be comparable with the plasma pressure. Especially large magnetic fields can arise in hot plasma with a high electron density, for example, in laser-heated plasma. In steady-state plasma, the magnetic field can be self-sustaining. The considered magnetic fields may play an important role in thermal insulation of the plasma.


Keywords

spatially inhomogeneous plasma, instability, spontaneous magnetic field, self-sustaining magnetic field in steady-state plasma

DOI: 10.1585/pfr.7.1301002


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This paper may be cited as follows:

Anatoly F. NASTOYASHCHIY, Plasma Fusion Res. 7, 1301002 (2012).