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Title: Anode-sheath dynamic of Metal Plasma Arc Switches

Abstract

Recently, five different, novel, experimental, high-power active devices called Metal Plasma Arc Switches (MPAS) characterized by high arc voltage (100 to 100 kV) were developed here at SUNY/AB, and three other research organizations. As their name implies, the conducting medium is a metallic plasma vapor. The MPAS devices are actively or repetitively controllable while in their conducting state. Control of these devices was obtained internally through unique geometries and through the external means of applied magnetic fields. These switches show some promise for use as opening switches in the field of pulsed power. The author develops the theory of operation for one of the magnetically controlled MPASs and compares the resulting predictions to the available experimental diagnostics. Before this work there was no satisfactory dynamical theory of operation for any of these switches. The author shows how the magnetic forces and anode sheath work in concert to display the observed voltage and current characteristics of a particular device during the controlled phase of operation. Suggestions for extending the theory to other MPAS devices will be discussed.

Authors:
Publication Date:
Research Org.:
State Univ. of New York, Buffalo (USA)
OSTI Identifier:
7029570
Alternate Identifier(s):
OSTI ID: 7029570
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ANODES; PLASMA SHEATH; DYNAMICS; PLASMA SWITCHES; MAGNETIC FIELDS; OPERATION; ELECTRICAL EQUIPMENT; ELECTRODES; EQUIPMENT; MECHANICS; SWITCHES 420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)

Citation Formats

Dettman, D.R.. Anode-sheath dynamic of Metal Plasma Arc Switches. United States: N. p., 1987. Web.
Dettman, D.R.. Anode-sheath dynamic of Metal Plasma Arc Switches. United States.
Dettman, D.R.. Thu . "Anode-sheath dynamic of Metal Plasma Arc Switches". United States.
@article{osti_7029570,
title = {Anode-sheath dynamic of Metal Plasma Arc Switches},
author = {Dettman, D.R.},
abstractNote = {Recently, five different, novel, experimental, high-power active devices called Metal Plasma Arc Switches (MPAS) characterized by high arc voltage (100 to 100 kV) were developed here at SUNY/AB, and three other research organizations. As their name implies, the conducting medium is a metallic plasma vapor. The MPAS devices are actively or repetitively controllable while in their conducting state. Control of these devices was obtained internally through unique geometries and through the external means of applied magnetic fields. These switches show some promise for use as opening switches in the field of pulsed power. The author develops the theory of operation for one of the magnetically controlled MPASs and compares the resulting predictions to the available experimental diagnostics. Before this work there was no satisfactory dynamical theory of operation for any of these switches. The author shows how the magnetic forces and anode sheath work in concert to display the observed voltage and current characteristics of a particular device during the controlled phase of operation. Suggestions for extending the theory to other MPAS devices will be discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Thesis/Dissertation:
Other availability
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