Visible Images Induced by the Three-Dimensionally Complicated Structure of the Plasma Periphery in the Large Helical Device

Author

Shoji, Mamoru ; Watanabe, Tsuguhiro

Author_Institution

Res. Oper. Div., LHD Projects, Toki

Volume

36

Issue

4

fYear

2008

Firstpage

1374

Lastpage

1375

Abstract

The magnetic components produced by nonaxisymmetric superconducting coils in the Large Helical Device produce a complicated magnetic structure in the plasma periphery, which strongly depend on the configuration of electric currents in the magnetic coils. A tangentially viewing charge-coupled device camera has observed line emission of doubly ionized carbon CIII. The dependence of the 3-D distribution of the CIII emission on magnetic configurations will be discussed.

Keywords

carbon; plasma diagnostics; plasma impurities; plasma toroidal confinement; plasma transport processes; stellarators; C; Large Helical Device; charge-coupled device camera; doubly ionized carbon line emission; electric currents; impurity transport; magnetic coils; magnetic structure; nonaxisymmetric superconducting coils; plasma periphery; Leg; Magnetic confinement; Magnetic devices; Magnetic field measurement; Magnetic flux; Plasma confinement; Plasma devices; Superconducting coils; Superconducting magnets; Toroidal magnetic fields; Divertor; large helical device; peripheral plasma; visible emission;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2008.927340

Filename

4599095