Effect of scrape-off on tokamak radial transport
Abstract
A general procedure is presented to evaluate the tokamak particle and energy losses in the presence of a poloidal divertor or a toroidal limiter, assuming cold collisional electrons and hot collisionless ions in the scrape-off layer. The case of the limiter is treated in detail and approximate expressions for the losses, to be incorporated in the tokamak transport equations, are obtained. The importance of the barely trapped particles in determining the radial profiles is emphasized.
- Publication:
-
Physics of Fluids
- Pub Date:
- August 1979
- DOI:
- 10.1063/1.862777
- Bibcode:
- 1979PhFl...22.1570E
- Keywords:
-
- Diverters;
- Energy Dissipation;
- High Temperature Plasmas;
- Magnetic Field Configurations;
- Plasma Control;
- Tokamak Devices;
- Boltzmann Transport Equation;
- Energy Technology;
- Particle Collisions;
- Radial Distribution;
- Trapped Particles;
- Wall Temperature;
- Plasma Physics