Oscillating field current drive for reversed field pinch discharges
Oscillating Field Current Drive (OFCD), also known as F-THETA pumping, is a steady-state current-drive technique proposed for the Reversed Field Pinch (RFP). Unlike other current-drive techniques, which employ high-technology, invasive, and power intensive schemes using radio frequency or neutral particle injection, F-THETA pumping entails driving the toroidal and poloidal magnetic field circuits with low-frequency (audio) oscillating voltage sources. Current drive by this technique is a consequence of the strong nonlinear plasma coupling in the RFP. Because of its low frequency and efficient plasma coupling, F-THETA pumping shows excellent promise as a reactor-relevant current-drive technique. A conceptual and computational study of this concept, including its experimental and reactor relevance, is explored in this paper.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7094217
- Report Number(s):
- LA-9161-MS; ON: DE84015090
- Country of Publication:
- United States
- Language:
- English
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Technology and physics implications of oscillating-field current drive in reversed-field pinches
Technology and physics implications of oscillating-field current drive in reversed-field pinches
Related Subjects
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
COUPLING
CURRENT-DRIVE HEATING
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRIC HEATING
ELECTROMAGNETIC FIELDS
HEATING
JOULE HEATING
NONLINEAR PROBLEMS
PINCH EFFECT
PLASMA HEATING
RESISTANCE HEATING
REVERSE-FIELD PINCH