Conveners
Plasma Scenarios: EX/1
- Nikolay Ivanov (Russian Federation)
Mr
Emmanuel Joffrin
(France)
09/10/2012, 10:45
EXC - Magnetic Confinement Experiments: Confinement
Oral Presentation
In the recent JET experimental campaigns with the new ITER-like-Wall(ILW), major progress has been achieved in the characterisation of the H-mode regime: i) plasma breakdown and L-mode operation have been recovered in a few days of operation, ii) stable type I ELMy H-modes with H98y2 close to 1 and BetaN~1.6 have been achieved in high triangularity ITER–like shape plasmas on the bulk divertor...
Mr
Basil Duval
(Switzerland)
09/10/2012, 11:05
EXS - Magnetic Confinement Experiments: Stability
Oral Presentation
TCV’s real-time (RT) control system uses a range of diagnostic signals to detect plasma events and react with programmable, controllable actuators such as orientable ECH power and Tokamak control actuators. Three examples of MHD phenomena control are presented with RT recognition of temporal and/or spatial extents of events controlled by synchronous modulation of the power or heating position...
Ms
Amanda Hubbard
(USA)
09/10/2012, 11:25
EXC - Magnetic Confinement Experiments: Confinement
Oral Presentation
The I-mode regime of operation has been extended in recent Alcator C-Mod campaigns in duration and robustness, over a wide range of parameters. This attractive regime features an edge thermal barrier, and H-mode like energy transport, in combination with L-mode like density profiles and particle transport. This prevents accumulation of impurities, and means that ELMs are not needed to expel...
Mr
Joerg Stober
(Germany)
09/10/2012, 11:45
EXC - Magnetic Confinement Experiments: Confinement
Oral Presentation
In contrast to ITER and future fusion reactors, plasmas used today for preparational or fundamental studies are often heated dominantly via the ion channel and with strong concurrent momentum input. This is due to the dominance of NBI heating systems, which are widely used because of their reliability and universal applicability. The potential danger of this approach is an over-estimation of...
Mr
Christopher T. Holcomb
(USA)
09/10/2012, 12:05
EXS - Magnetic Confinement Experiments: Stability
Oral Presentation
New off-axis neutral beam injection (NBI) capability on DIII-D has expanded the range of achievable and sustainable current and pressure profiles of interest for developing the physics basis of steady-state scenarios in future tokamaks. Fully noninductive (NI) scenarios are envisioned to have broad current and pressure profiles with elevated minimum safety factors (q_min), high normalized beta...
