Electrostatic end-plugging of a plasma in a cusp-shaped magnetic field composed of a magnetic array

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · IEEE Trans. Plasma Sci.; (United States)

DOI:https://doi.org/10.1109/TPS.1983.4316220· OSTI ID:5371589

Fujita, T; Adachi, S; Ohnuma, T

An end-loss of a plasma through a cusp-shaped magnetic field is experimentally investigated to be plugged by an electrostatic potential barrier. The main plasma is contained in a surface magnetic field whose one end is of cusp geometry. The potential barrier is set up near the cusp region by a production of another independent plasma whose space potential is controllable. The effects of the potential barrier on the end-plugging are studied with a measurement of the decay time of an after-glow plasma. It is observed that the decay time is improved by 2 to about 3 times longer than that without the potential barrier. The experimental results are found to be consistent with preliminary estimated values.

• Research Organization: Dept. of Elec. Eng., Tokoku University, Sendai 980
• OSTI ID: 5371589
• Journal Information: IEEE Trans. Plasma Sci.; (United States), Vol. 11:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CUSPED GEOMETRIES
LOSSES
PLASMA CONFINEMENT
CLOSURES
DECAY
ELECTROSTATICS
MAGNETIC FIELDS
PLASMA
CONFINEMENT
MAGNETIC FIELD CONFIGURATIONS
OPEN CONFIGURATIONS
700202* - Fusion Power Plant Technology- Magnet Coils & Fields