On the Origin of Arcing in a Tokamak
Abstract
Experimental study of arcing is made in JFT-2 tokamak. Arcing is accompanied with the X-ray emission from a limiter. It is the most probable cause of arcing that accelerated electrons supply the large negatively biased potential to the limiter and offer the sufficient sheath potential to produce arc spot. This model well explains the monopolar arcing phenomenon in the current rising phase and in the plasma disruption phase.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- June 1980
- DOI:
- 10.1143/JPSJ.48.2177
- Bibcode:
- 1980JPSJ...48.2177M
- Keywords:
-
- Plasma Jets;
- Plasma Radiation;
- Tokamak Devices;
- Toroidal Plasmas;
- Controlled Fusion;
- Plasma Currents;
- Time Response;
- X Rays;
- Plasma Physics