E × B Plasma Rotation and n = 1 Oscillation Observed in the NSTX-CHI Experiments

Autor: Masayoshi NAGATA, Roger RAMAN, Vlad SOUKHANOVSKII, Brian A. NELSON, Ronald E. BELL, Dennis MUELLER, Thomas R. JARBOE, Michael G. BELL, null the NSTX Research Team
Rok vydání: 2007
Předmět:
Zdroj: Plasma and Fusion Research. 2:035-035
ISSN: 1880-6821
Popis: In the National Spherical Torus Experiment (NSTX), a peak plasma current up to 390 kA has been successfully generated by the Coaxial Helicity Injection (CHI) current drive method. The plasma rotation (∼ 20 km/s) driven in the E × B toroidal direction by CHI has been clearly identified by an ion Doppler spectroscopic measurement. The n = 1 mode has been also observed to rotate in the same direction. This rotating kink behavior observed for the first time in NSTX is consistent with the electron locking model developed in the Helicity Injected Torus-II (HIT-II) experiments to explain the mechanism of CHI current drive.
Databáze: OpenAIRE