UP-SHIFTED FREQUENCY ELECTRON-CYCLOTRON CURRENT DRIVE IN A LOWER HYBRID CURRENT DRIVE PLASMA

Authors
MAEKAWA T MAEHARA T MINAMI T KISHIGAMI Y KISHINO T MAKINO K HANADA K NAKAMURA M TERUMICHI Y TANAKA S
Citation
T. Maekawa et al., UP-SHIFTED FREQUENCY ELECTRON-CYCLOTRON CURRENT DRIVE IN A LOWER HYBRID CURRENT DRIVE PLASMA, Physical review letters, 70(17), 1993, pp. 2561-2564
Citations number
23
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
70
Issue
17
Year of publication
1993
Pages
2561 - 2564
Database
ISI
SICI code
0031-9007(1993)70:17<2561:UFECDI>2.0.ZU;2-8
Abstract
Using oblique injection of electron-cyclotron (EC) waves, launched fro m the low field side in the WT-3 tokamak, into a target plasma sustain ed by lower hybrid current drive (LHCD), the plasma current is ramped up at a rate corresponding to 100 kA/s. The current ramp-up is ascribe d to selective EC heating of tail electrons in the LHCD plasma via fun damental EC resonance at an up-shifted frequency due to the Doppler ef fect.