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23 April 2024

» pubmed » pmid11082588

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Ion heating and high-energy-particle production by ion-cyclotron heating in the large helical device
T Mutoh ; R Kumazawa ; T Seki ; T Watari ; K Saito ; Y Torii ; D A Hartmann ; Y Zhao ; M Sasao ; M Isobe ; M Osakabe ; A V Krasilnikov ; T Ozaki ; K Narihara ; Y Nagayama ; S Inagaki ; F Shimpo ; G Nomura ; M Yokota ; K Akaishi ; N Ashikawa ; de Vries P ; M Emoto ; H Funaba ; A Fukuyama ; M Goto ;
Date:	20 Nov 2000
Journal:	Phys Rev Lett, 85 (21), 4530-3
Abstract:	Ion-cyclotron heating was applied to the Large Helical Device. When the proton-cyclotron resonance was near the saddle point of the magnetic field-strength plane, strong ion-cyclotron damping occurred. Under these conditions efficient plasma heating was achieved for more than one minute. A high-energy ion tail was observed, and the effective tail temperature was determined by a balance between the wave acceleration and the electron-drag relaxation. There was no apparent sign of particle orbit loss effect in the investigated density range of 0.8-1.3x10(19) m(-3).
Source:	PubMed, pmid11082588
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