Title of article :
LHCD current profile control experiments towards steady state improved confinement on JT-60U
Author/Authors :
Ide، S. نويسنده , , Fujita، T. نويسنده , , Oikawa، T. نويسنده , , Kondoh، T. نويسنده , , Naito، O. نويسنده , , Team، JT-60 نويسنده , , Ushigusa، K. نويسنده , , Seki، M. نويسنده ,
Pages :
-444
From page :
445
To page :
0
Abstract :
In JT-60U lower hybrid current drive (LHCD) experiments, a reversed magnetic shear configuration that was accompanied by internal transport barriers was successfully maintained in a quasi-steady state almost entirely non-inductively by the LH driven current and the bootstrap current. The normalized b was kept near 1 and the neutron emission rate was nearly steady as well, indicating no accumulation of impurities in the plasma. Diagnostics showed that the profiles of the electron and ion temperatures, the electron density and the current were almost unchanged during the LHCD phase. The applicability of LHCD to H mode plasmas has also been investigated. It was found that the LH waves can be coupled to an H mode edge plasma with a plasma-wall distance of up to about 14 cm.
Keywords :
Helianthus annuus L. , seed-kernel ratio , hull-kernel ratio , seed source , Pakistan
Journal title :
Astroparticle Physics
Record number :
33020
Link To Document :
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