Confinement improvement of low-aspect-ratio torsatrons

Technical Report · Wed Mar 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/6356506· OSTI ID:6356506

Carreras, B. A.; Lynch, V. E.; Dominguez, N.; Leboeuf, J. N.; Lyon, J. F.

Stellarators with plasma aspect ratios in the range from 3.5 to 5 can be created using the Compact Torsatron configurations. Stable operation at high beta should be possible in these devices if a vertical field coil system is designed to prevent breaking of the magnetic surfaces at finite beta. Direct losses of energetic particles can be high, but the addition of an external quadrupole field can reduce these losses. Optimization criteria and the low-aspect-ratio torsatron configurations obtained are discussed. 22 refs., 12 figs., 1 tab.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6356506
• Report Number(s): ORNL/TM-11101; ON: DE89010192
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TORSATRON STELLARATOR
PLASMA CONFINEMENT
ASPECT RATIO
CONFINEMENT TIME
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC SURFACES
OPTIMIZATION
CLOSED PLASMA DEVICES
CONFINEMENT
STELLARATORS
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production