Excitation and Propagetion of Modified Fluctuation in a Toroidal Plasma in KT-5C Device

O4; Understanding the propagation of the turbulent perturbation in the tokamak edge plasma is an important issue to actively modify or control the turbulence, reduce the anomalous transport and improve plasma confmement. To realize active modification of the edge perturbation, a high dynamic output,...

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Bibliographic Details
Published in:等离子体科学和技术(英文版) 2002, Vol.4 (4), p.1361-1366
Format: Article
Language:English
Online Access:Get full text
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Summary:O4; Understanding the propagation of the turbulent perturbation in the tokamak edge plasma is an important issue to actively modify or control the turbulence, reduce the anomalous transport and improve plasma confmement. To realize active modification of the edge perturbation, a high dynamic output, broad-band, low-cost power amplifier is set up, and used to drive the active probes in the experiments on KT-5C Tokmak. By using small-size magnetic probes together with Langmiur probes, It is observed that the modified perturbation by the active probes with sufficiently driving power may spread with electrostatic mode, and electromagnetic mode as well.
ISSN:1009-0630
DOI:10.1088/1009-0630/4/4/004