Asymmetry, potential penetration and supersonic speeds in MBX experiment at high voltage and medium power

In MBX, a small mirror machine with a radial electric field creates a rotating plasma that is expected to evolve, under certain conditions, into a self-organizing, detached toroidal plasma ring, a magnetofluid state. In the present stage of the experiment a low density plasma generated by microwaves...

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Bibliographic Details
Published in:Journal of fusion energy 2007-06, Vol.26 (1-2), p.155-158
Main Authors: QUEVEDO, H. J, VALANJU, P. M, BENGTSON, Roger D
Format: Article
Language:English
Subjects:
Applied sciences
Asymmetry
Bias
Capacitor banks
Controled nuclear fusion plants
Electric fields
Electrodes
Electrons
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Experiments
Installations for energy generation and conversion: thermal and electrical energy
Magnetic fields
Microwaves
Plasma
Rotating plasmas
Symmetry
Toroidal plasmas
Velocity
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Summary:In MBX, a small mirror machine with a radial electric field creates a rotating plasma that is expected to evolve, under certain conditions, into a self-organizing, detached toroidal plasma ring, a magnetofluid state. In the present stage of the experiment a low density plasma generated by microwaves (1 kW at 2.54 GHz) has been successfully rotated at supersonic speeds using a 1 kV–80 mF capacitor bank with currents ∼5 amps. Under these conditions the plasma presents high asymmetry in the current, plasma potential and consequently rotation with the voltage applied. A simple model is presented to account for these features.
ISSN:0164-0313
1572-9591
DOI:10.1007/s10894-006-9062-1