Document Detail


Mitigation of tokamak disruptions using high-pressure gas injection.
MedLine Citation:
PMID:  12144446     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
High-pressure gas-jet injection of neon and argon is shown to be a simple and robust method to mitigate the deleterious effects of disruptions on the DIII-D tokamak. The gas jet penetrates to the central plasma at its sonic velocity. The deposited species dissipates >95% of the plasma by radiation and substantially reduces mechanical stresses on the vessel caused by poloidal halo currents. The gas-jet species-charge distribution can include >50% fraction neutral species which inhibits runaway electrons. The favorable scaling of this technique to burning fusion plasmas is discussed.
Authors:
D G Whyte; T C Jernigan; D A Humphreys; A W Hyatt; C J Lasnier; P B Parks; T E Evans; M N Rosenbluth; P L Taylor; A G Kellman; D S Gray; E M Hollmann; S K Combs
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Publication Detail:
Type:  Journal Article     Date:  2002-07-12
Journal Detail:
Title:  Physical review letters     Volume:  89     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-07-29     Completed Date:  2002-09-16     Revised Date:  2003-11-03    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  055001     Citation Subset:  -    
Affiliation:
University of California, San Diego, California, USA.
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