Vertical Stability in a Current-carrying Stellarator
An analytic stability criterion is derived for the vertical mode in a large aspect ratio stellarator. The effects of vacuum magnetic field generated by helical coils are shown to be stabilizing due to enhancement of field line bending energy. For wall at infinite distance from the plasma, the amount of external poloidal flux needed for stabilization is given by f = [k(subscript 2)-K]/[K(subscript 2) + 1] where k is the axisymmetric elongation and f is the ratio of vacuum rotational transform to the total transform.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 14334
- Report Number(s):
- PPPL-3368; AC02-CHO-3073; TRN: US0111002
- Resource Relation:
- Other Information: PBD: 1 Oct 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vertical stability in a current-carrying stellarator
Magnetohydodynamics stability of compact stellarators
Suppression of vertical instability in elongated current-carrying plasmas by applying stellarator rotational transform
Journal Article
·
Sat Apr 01 00:00:00 EST 2000
· Physics of Plasmas
·
OSTI ID:14334
Magnetohydodynamics stability of compact stellarators
Technical Report
·
Mon Jan 03 00:00:00 EST 2000
·
OSTI ID:14334
+1 more
Suppression of vertical instability in elongated current-carrying plasmas by applying stellarator rotational transform
Journal Article
·
Thu May 15 00:00:00 EDT 2014
· Physics of Plasmas
·
OSTI ID:14334
+9 more