Equilibrium and stability properties of high-beta torsatrons

Technical Report · Mon Aug 01 00:00:00 EDT 1983

DOI:https://doi.org/10.2172/5588932· OSTI ID:5588932

Carreras, B. A.; Hicks, H. R.; Holmes, J. A.; Lynch, V. E.; Garcia, L.; Harris, J. H.; Hender, T. C.; Masden, B. F.

Equilibrium and stability properties of high-beta torsatrons have been investigated using numerical and semianalytical techniques based on the method of toroidal averaging. The averaged equilibria have been compared with those obtained using full three-dimensional codes. Good agreement is obtained, thus validating the averaged method approach. We have studied the stability of plamsas for configurations with different aspect ratios and numbers of field periods. The role of the vertical field has also been studied in detail. The main conclusion is that for moderate aspect ratio torsatrons (A/sub p/ less than or equal to 8), the self-stabilizing effect of the magnetic axis shift is large enough to open a direct path to the second stability region.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5588932
• Report Number(s): ORNL/TM-8752; ON: DE83016346
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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ASPECT RATIO
ATF TORSATRON
CLOSED PLASMA DEVICES
EQUILIBRIUM PLASMA
HIGH-BETA PLASMA
INSTABILITY
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
STELLARATORS
THERMONUCLEAR DEVICES
THREE-DIMENSIONAL CALCULATIONS
TORSATRON STELLARATOR