Power deposition profile effect on the ECH efficiency in T-10

Tokamak confinement in relation to plateau scaling

“…In ICRH experiments, the density dependence of radiation effects or of the occurrence of sawteeth could possibly play a similar role. Finally, in many high power ECRH experiments, a positive density dependence of the energy confinement has indeed been found [15].…”

Electron cyclotron heating in NET using the ordinary mode at downshifted frequency

“…The radial current required for DIII-D can be estimated by assuming (as in Ref. [1]) that the poloidal torque due to the radial current is balanced by ion viscosity, J r B t « m l n,v l l v p (7) where J r is the radial current density, n; is the ion density, p ti is the ion-ion collision time [6] and v p is the poloidal velocity. Taking the measured H-mode parameters on DIII-D [7], v p -25 km-s"' and T; ~ 300 eV, we obtain I r = 46 A (ni[10 19 m' 3 ]) 2 (T ; [300 eV])" 3/2 (B[l T])" 1 (8)…”

“…REFERENCES [1] ABSTRACT. The proposed new scenario of electron cyclotron heating of a tokamak reactor makes use of the low-field-side, normally injected ordinary mode at downshifted frequency.…”