Potential formation triggered by field-aligned electron acceleration due to electron cyclotron Resonance along Diverging Magnetic-Field Lines

Toshiro Kaneko, Rikizo Hatakeyama, Noriyoshi Sato

Research output: Contribution to journalArticlepeer-review

Abstract

Stationary potential drop and ion acceleration along diverging magnetic-Held lines are observed in a fully ionized collisionless plasma flow in the presence of electron cyclotron resonance (ECR) heating (ECRH). Time-resolved measurements for the purpose of clarifying the potential-formation dynamics show that temporal evolutions of the potential profile and electron energy distribution function correlate well with each other. The strong potential drop is found to be caused by a field-aligned electron acceleration due to ECRH, being accompanied by an effective ion acceleration so as to maintain the charge neutrality condition in the downstream region from the ECR point. Index Terms-Diverging magnetic-field lines, electron cyclotron resonance, ion acceleration, stationary potential drop.

Original languageEnglish
Pages (from-to)1742-1746
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume28
Issue number5
DOIs
Publication statusPublished - 2000 Dec 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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