Fluctuation and transport reduction in a reversed field pinch by inductive poloidal current drive

Journal Article · Mon Jun 06 00:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3670· OSTI ID:7204454

Sarff, J S; Hokin, S A; Ji, H; Prager, S C; Sovinec, C R ^[1]

---

1. University of Wisconsin Madison, Madison, Wisconsin 53706 (United States)

An auxiliary poloidal inductive electric field applied to a reserved field pinch plasma reduces the current density gradient, slows the growth of [ital m]=1 tearing fluctuations, suppresses their associated sawteeth, and doubles the energy confinement time. Small sawteeth occur in the improved state but with [ital m]=0 precursors. By requiring a change of toroidal flux embedding the plasma, inductive poloidal current profile drive is transient, but the improvement encourges the program of reversed field pinch transport suppression using current profile control.

• OSTI ID: 7204454
• Journal Information: Physical Review Letters; (United States), Vol. 72:23; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
FLUCTUATIONS
REVERSE-FIELD PINCH
ENERGY LOSSES
CHARGE TRANSPORT
EXPERIMENTAL DATA
INDUCTION
INHIBITION
MAGNETIC CONFINEMENT
NON-INDUCTIVE CURRENT DRIVE
PLASMA CONFINEMENT
SAWTOOTH OSCILLATIONS
TEARING INSTABILITY
WAVE FORMS
CONFINEMENT
DATA
INFORMATION
INSTABILITY
LOSSES
NUMERICAL DATA
OSCILLATIONS
PINCH EFFECT
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
VARIATIONS
700310* - Plasma Confinement- (1992-)
700330 - Plasma Kinetics
Transport
& Impurities- (1992-)
700340 - Plasma Waves
Oscillations
& Instabilities- (1992-)