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Effects of Multi‐Species Ions on Sheath and Presheath in a Magnetic Field Decreasing toward a Wall
Author(s) -
Fukano A.,
Nishioka S.,
Goto I.,
Hatayama A.
Publication year - 2016
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201610037
Subject(s) - ion , divertor , plasma , atomic physics , magnetic field , electric field , materials science , deuterium , debye sheath , physics , tokamak , nuclear physics , quantum mechanics
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. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)