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Abstract

A general expression for local power absorption of small amplitude electromagnetic fields in a hot, uniformly magnetised plasma is obtained starting from Vlasov-Maxwell equations. Using a transformation to Lagrangian coordinates, the power is calculated without introducing the flux due to particle streaming, and corresponds to the local exchange of energy between the wave and the plasma. Assuming the Larmor radii of the species to be small, compared with the characteristic scale length of the fields and the equilibrium quantities such as density and temperature, an expansion to second order is carried out. This results in an explicit expression for local power absorption in a 2-D plasma, which takes into account the effects due to density and temperature gradients.

Additional information

Authors: JAUN A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH);VACLAVIK J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH)
Bibliographic Reference: Paper presented: Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna (IT), August 27-31, 1990
Availability: Available from (1) as Paper EN 35661 ORA
Record Number: 199110443 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en