Document Detail


Suppression of large edge-localized modes in high-confinement DIII-D plasmas with a stochastic magnetic boundary.
MedLine Citation:
PMID:  15245164     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A stochastic magnetic boundary, produced by an applied edge resonant magnetic perturbation, is used to suppress most large edge-localized modes (ELMs) in high confinement (H-mode) plasmas. The resulting H mode displays rapid, small oscillations with a bursty character modulated by a coherent 130 Hz envelope. The H mode transport barrier and core confinement are unaffected by the stochastic boundary, despite a threefold drop in the toroidal rotation. These results demonstrate that stochastic boundaries are compatible with H modes and may be attractive for ELM control in next-step fusion tokamaks.
Authors:
T E Evans; R A Moyer; P R Thomas; J G Watkins; T H Osborne; J A Boedo; E J Doyle; M E Fenstermacher; K H Finken; R J Groebner; M Groth; J H Harris; R J La Haye; C J Lasnier; S Masuzaki; N Ohyabu; D G Pretty; T L Rhodes; H Reimerdes; D L Rudakov; M J Schaffer; G Wang; L Zeng
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Publication Detail:
Type:  Journal Article     Date:  2004-06-10
Journal Detail:
Title:  Physical review letters     Volume:  92     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-07-12     Completed Date:  2004-07-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  235003     Citation Subset:  -    
Affiliation:
General Atomics, San Diego, California, USA.
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