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Feedback suppression of the radiative condensation instability

 

作者: A. K. Sen,  

 

期刊: Physics of Fluids B: Plasma Physics  (AIP Available online 1993)
卷期: Volume 5, issue 11  

页码: 3997-4001

 

ISSN:0899-8221

 

年代: 1993

 

DOI:10.1063/1.860618

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A new scheme of feedback suppression of the radiative condensation instability in the tokamak edge plasma is presented. The physics basis of this scheme is the modulation of the parallel electron thermal flux at the instability frequency via a feedback circuit. The latter consists of a temperature sensor, amplifiers, phase shifters, and a suitable form of insulated segmented poloidal limiter sections used as suppressors. The necessary feedback power is the order of a kilowatt for small tokamaks and a few megawatts for large reactor‐type machines.

 

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