Electric lamp and discharge devices: systems – Discharge device load with fluent material supply to the... – Plasma generating
Patent
1998-12-17
2000-11-21
Bettendorf, Justin P.
Electric lamp and discharge devices: systems
Discharge device load with fluent material supply to the...
Plasma generating
31511191, 3133621, 60202, H01J 152
Patent
active
061507644
ABSTRACT:
A tandem Hall field plasma accelerator with closed electron drift includes a magnetic circuit having an inner pole and an outer pole and a magnetic field source and a discharge cavity disposed axially in tandem; the discharge cavity including an axially extending accelerator section defining an exit aperture between the inner and outer poles and a plenum section extending radially outwardly and upstream of the accelerator section and including an anode and a propellant injector. Also disclosed is the use of an electromagnetic coil which provides a magnetic field in a magnetic circuit and includes a multiple turn winding wound on an electrically conductive bobbin. The plasma discharge is connected electrically in series with the electromagnetic coil and a power source with a bobbin defining a single turn secondary coil winding on the magnetic circuit which reduces magnetic field fluctuations in the plasma discharge and reduces eddy currents and consequent heating of the magnetic circuit.
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Hruby Vladimir J.
Monheiser Jeffery M.
Pote Bruce M.
Bettendorf Justin P.
Busek Co. Inc.
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