On the modelling of fundamental ion cyclotron absorption by finite Larmor radius wave equations

Mikko Alava, Jukka Heikkinen, Thorbjörn Hellsten, Igor Pavlov, Oleg Scherbinin

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Modified sixth order wave equations from a finite temperature expansion of the linearized Vlasov-Maxwell equations in the ion cyclotron range of frequencies are constructed for modelling the power deposition of the fast magnetosonic wave whenever a majority or high concentration minority fundamental cyclotron resonance resides in a plasma. The negative absorption sometimes observed around the cyclotron resonance in the solutions of the equations obtained by a rigorous perturbation expansion to second order in ion Larmor radius is avoided.
Original languageEnglish
Pages (from-to)275-282
Number of pages8
JournalPhysica Scripta
Volume50
Issue number3
DOIs
Publication statusPublished - 1994
MoE publication typeA1 Journal article-refereed

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