Plasma and Fusion Research
Volume 7, 1301002 (2012)
Letters
- RF SRC Troitsk Institute for Innovation and Fusion Research (TRINITI), ul. Pushkovykh, vladenie 12, 142190 Troitsk, Moscow region, Russia
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
Full Text
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This paper may be cited as follows:
Anatoly F. NASTOYASHCHIY, Plasma Fusion Res. 7, 1301002 (2012).