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Title: Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter

Abstract

A strong modification of plasma potential was observed at the plasma surface with the application of a helical field produced by a set of local helical coils. The structure of magnetic field lines was computed by a field line tracing code for a tokamak plasma. Such a field structure was examined in the experiment using electron beam probing. The potential formation and the magnetic structure are discussed referring to the scheme of an ergodic magnetic limiter.

Authors:
; ; ;
Publication Date:
Research Org.:
Department of Electrical Engineering , Faculty of Engineering, Nagoya University, Nagoya 464, Japan
OSTI Identifier:
6680185
Alternate Identifier(s):
OSTI ID: 6680185
Resource Type:
Journal Article
Journal Name:
Phys. Fluids; (United States)
Additional Journal Information:
Journal Volume: 30:1
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA; MAGNETIC FLUX; POTENTIALS; TOKAMAK DEVICES; LIMITERS; ELECTRON PROBES; HELICAL CONFIGURATION; IMPURITIES; MAGNET COILS; MAGNETIC FIELDS; MODIFICATIONS; SURFACE PROPERTIES; CLOSED PLASMA DEVICES; CONFIGURATION; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; PROBES; THERMONUCLEAR DEVICES 700201* -- Fusion Power Plant Technology-- Blanket Engineering; 700103 -- Fusion Energy-- Plasma Research-- Kinetics

Citation Formats

Takamura, S., Ohnishi, N., Yamada, H., and Okuda, T. Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter. United States: N. p., 1987. Web. doi:10.1063/1.866180.
Takamura, S., Ohnishi, N., Yamada, H., & Okuda, T. Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter. United States. doi:10.1063/1.866180.
Takamura, S., Ohnishi, N., Yamada, H., and Okuda, T. Thu . "Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter". United States. doi:10.1063/1.866180.
@article{osti_6680185,
title = {Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter},
author = {Takamura, S. and Ohnishi, N. and Yamada, H. and Okuda, T.},
abstractNote = {A strong modification of plasma potential was observed at the plasma surface with the application of a helical field produced by a set of local helical coils. The structure of magnetic field lines was computed by a field line tracing code for a tokamak plasma. Such a field structure was examined in the experiment using electron beam probing. The potential formation and the magnetic structure are discussed referring to the scheme of an ergodic magnetic limiter.},
doi = {10.1063/1.866180},
journal = {Phys. Fluids; (United States)},
number = ,
volume = 30:1,
place = {United States},
year = {1987},
month = {1}
}