Pfc/ja-94-34 Enhanced Current Drive with Lower-hybrid and Ion-bernstein Waves

Pfc/ja-93-6 Lower Hybrid Current Drive in the Presence of Ion Cyclotron

Numerical Studies and Simulation of the Lower Hybrid Waves Current Drive by using Fokker – Planck Equation in NSST and HT-7 Tokamaks

Recent experiments on the spherical tokamak have discovered the conditions to create a powerful plasma and ensure easy shaping and amplification of stability, high bootstrap current and confinement energy. The spherical tours (ST) fusion energy development path is complementary to the tokamak burning plasma experiment such as NSTX and higher toroidal beta regimes and improves the design of a po...

PFC / JA - 86 - 18 The Anomalous Doppler Instability During Lower - Hybrid Current Drive

PFC/RR-92-13 Current-Drive and Plasma-Formation Experiments on the Versator-Il Tokamak Using Lower-Hybrid and Electron-Cyclotron Waves

During lower-hybrid current-driven (LHCD) tokamak discharges with thermal electron temperature Te ~~ 150 eV, a two-parallel-temperature tail is observed in the electron distribution function. The cold tail extends to parallel energy Ell ~ 4.5 keV with temperature Tthd ~ 1.5 keV, and the hot tail extends to El > 150 keV with Thj' > 40 keV. Fokker-Planck computer simulations suggest the cold tail...

PFC / JA - 87 - 32 Stabilization of Sawteeth By Lower Hybrid Waves in the Alcator

Sawteeth have been suppressed by lower hybrid current drive in high density Alcator C plasmas. At a density of 1.1 x 101 4 cm-3 and q(a) = 4.7 the sawteeth were eliminated by application of P,.f = 600 kW at 4.6 GHz, which represents an estimated 30% of the rf power required to fully sustain the discharge in the absence of ohmic power. Strong electron heating is observed with both current drive ...