Published May 2013 | Version v1
Journal article Metadata-only

Disruption avoidance in the SINP-Tokamak by means of electrode-biasing at the plasma edge

Creators

  • 1. Instituto de Ciencias Nucleares-UNAM, Mexico D.F. 04510 (Mexico)
  • 2. Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, WB (India)
  • 3. Institute for Plasma Research, Gandhinagar (India)

Description

Control of plasma disruption by a biased edge electrode is reported in SINP-Tokamak. The features that characterize a plasma disruption are reduced with increasing bias potential. The disruption can be completely suppressed with the concomitant stabilization of observed MHD modes that are allegedly precursors of the disruption. An m = 3/n = 1 tearing mode, which apparently causes disruption can be stabilized when a negative biasing potential is applied near the edge. These changes in the disruptive behavior with edge biasing are hypothesized to be due to changes in the current density profile

Additional details

Identifiers

DOI
10.1063/1.4803656;

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
20
Journal Issue
5
Journal Page Range
p. 052502-052502.7
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45039577
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
BOUNDARY LAYERS; CURRENT DENSITY; ELECTRODES; MAGNETOHYDRODYNAMICS; PLASMA CONFINEMENT; PLASMA DISRUPTION; PLASMA POTENTIAL; PRECURSOR; SINP TOKAMAK; STABILIZATION; TEARING INSTABILITY
Descriptors DEC
CLOSED PLASMA DEVICES; CONFINEMENT; ELECTRIC POTENTIAL; FLUID MECHANICS; HYDRODYNAMICS; INSTABILITY; LAYERS; MECHANICS; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Notes
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