Effects of Multi-Species Ions on Sheath and Presheath in a Magnetic Field Decreasing toward a Wall

A. Fukano, S. Nishioka, I. Goto, Akiyoshi Hatayama

Research output: Contribution to journalArticle


In the divertor region, the plasma contains deuterium (D) ion and tritium (T) ion in an open magnetic field. The effect of D ion and T ion on the electric potential near the wall in plasma with magnetic field decreasing toward a wall is investigated analytically. The distribution of the electric potential is obtained by plasma-sheath equation, where D ion and T ion are considered. The potential distribution depends on the parameters such as the profile of the magnetic field, the temperatures of D ion and T ion, and the amount rate of T ion to D ion. The particle distribution also is shown. (

Original languageEnglish
Pages (from-to)675-680
Number of pages6
JournalContributions to Plasma Physics
Issue number6-8
Publication statusPublished - 2016 Aug 1



  • electric potential
  • magnetic field
  • Multi-species ions

ASJC Scopus subject areas

  • Condensed Matter Physics

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