Feedback control of tearing modes via modulated neutral beams

Tearing modes are suspected to be a principal cause of both minor and major disruptions in a tokamak. Suppression of these modes via a neutral beam which supplies momentum, energy and particles of appropriate phase and amplitude is considered. Model theoretical calculations are presented for the sta...

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Bibliographic Details
Published in:Physics of plasmas 1997-09, Vol.4 (9), p.3217-3221
Main Authors: Sen, A. K., Singh, R., Sen, A., Kaw, P. K.
Format: Article
Language:English
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Summary:Tearing modes are suspected to be a principal cause of both minor and major disruptions in a tokamak. Suppression of these modes via a neutral beam which supplies momentum, energy and particles of appropriate phase and amplitude is considered. Model theoretical calculations are presented for the stabilization of drift tearing modes and it is found that for ADITYA [S.B. Bhatt et al., Ind. J. Pure Appl. Phys. 27, 710 (1989)] and other present-day tokamak parameters, stabilization is achievable using modest levels of beam power, current and density.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.872463