TITLE

On the Boltzmann relation in a cold magnetized plasma

AUTHOR(S)
Nasi, L.; Raimbault, J.-L.
PUB. DATE
November 2010
SOURCE
Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p113513
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A systematic and exact comparison between the forces acting on magnetized electrons in a current-free plasma is considered within a fluid model. We show that the Boltzmann relation is fulfilled in the drift-diffusion approximation when (hi/he)(1+he2)/(1+hi2)<1 where he (or hi) is the ratio of the electron (or ion) cyclotron to the collision frequency. When the nonlinear inertia terms are taken into account, the previous criterion is too rough and must be modified. In particular it is proved that the Boltzmann relation is not uniformly valid in the plasma. The case of bounded plasmas where the electron temperature must be determined self-consistently is discussed in detail.
ACCESSION #
55509423

 

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