Kinetic study of sheath region near the first wall for tokamak fusion reactors

Conference · Thu Jan 01 00:00:00 EST 1981 · Proc. Symp. Eng. Probl. Fusion Res.; (United States)

OSTI ID:6421869

Schwager, L A

Theoretical profiles of density, temperature, drift velocity, and electric field are calculated for the sheath region between the plasma and first wall of a tokamak fusion reactor. It is shown that gyro-orbit effects on charged particle diffusion across the magnetic field create a sheath potential of 6 e/phi/sub k/T/sub e/ that strongly repels ions. This effect becomes important in the evaluation of sputtering and secondary electron emission at the first wall due to ion bombardment.

• OSTI ID: 6421869
• Report Number(s): CONF-811040-; TRN: 83-007806
• Journal Information: Proc. Symp. Eng. Probl. Fusion Res.; (United States), Conference: 9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK TYPE REACTORS
PLASMA SHEATH
ELECTRON TEMPERATURE
FIRST WALL
ION TEMPERATURE
PLASMA DENSITY
REACTOR KINETICS
KINETICS
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)