Characterization of the ASDEX scrape-off-layer density profile during neutral beam heating
Abstract
The scrape-off layer electron profiles in the outer midplane during phases of high neutral injection power are quantified. The diverted discharges are sustained by gas puffing. Empirical scaling conditions are introduced. The stainless steel walls of the vacuum vessel were neither carbonized nor gettered for these discharges. The importance of recycling for the scrape-off layer properties is emphasized.
- Publication:
-
ASDEX Contributions to the 8th International Conference on Plasma Surface Interaction in Controlled Fusion Devices
- Pub Date:
- November 1988
- Bibcode:
- 1988asde.nasa...14M
- Keywords:
-
- Electron Density (Concentration);
- Neutral Beams;
- Plasma Layers;
- Plasma Physics;
- Tokamak Devices;
- Beam Injection;
- Nuclear Fusion;
- Plasma Control;
- Plasma Generators;
- Plasma Physics