Steady-state spheromak
Conference
·
OSTI ID:6628549
A major effort is being made in the national program to make the operation of axisymmetric, toroidal confinement systems steady state by the application of expensive rf current drive. Described here is a method by which such a confinement system, the spheromak, can be refluxed indefinitely through the application of dc power. As a step towards dc sustainment we have operated the present CTX source in the slow source mode with a longer power application time (approx. 0.1 ms) and successfully generated long-lived spheromaks. If the erosion of the electrodes can be controlled as well as it is with MPD arcs then dc operation should be very clean. If only a small fraction (approx. 10% for an experiment) of the poloidal flux of the spheromak connects to the source then the dc sustainment can be very efficient. The amount of connecting flux that is necessary for sustainment needs to be determined experimentally.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6628549
- Report Number(s):
- LA-UR-82-3309; CONF-821124-3; ON: DE83003572
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:5257786
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Journal Article
·
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·
OSTI ID:5829584
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·
OSTI ID:6682256
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED PLASMA DEVICES
COMPACT TORUS
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRODES
ELECTRONIC EQUIPMENT
EQUIPMENT
HEATING
PINCH EFFECT
PLASMA HEATING
POWER SUPPLIES
REVERSE-FIELD PINCH
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TORI
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED PLASMA DEVICES
COMPACT TORUS
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRODES
ELECTRONIC EQUIPMENT
EQUIPMENT
HEATING
PINCH EFFECT
PLASMA HEATING
POWER SUPPLIES
REVERSE-FIELD PINCH
SPHEROMAK DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TORI