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Title: Low sputtering, cross-field, gas switch and method of operation

Abstract

A gas switch includes a gas-tight housing containing an ionizable gas, an anode disposed within the gas-tight housing, and a cathode disposed within the gas-tight housing, where the cathode includes a conduction surface. The gas switch also includes a control grid positioned between the anode and the cathode, where the control grid is arranged to receive a bias voltage to establish a conducting plasma between the anode and the cathode. In addition, the gas switch includes a plurality of magnets selectively arranged to generate a magnetic field proximate the conduction surface that reduces the kinetic energy of charged particles striking the conduction surface and raises the conduction current density at the cathode surface to technically useful levels.

Inventors:
;
Issue Date:
Research Org.:
General Electric Company, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576399
Patent Number(s):
10,403,466
Application Number:
15/933,602
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
AR0000298
Resource Type:
Patent
Resource Relation:
Patent File Date: 2018 Mar 23
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Sommerer, Timothy John, and Selezneva, Svetlana. Low sputtering, cross-field, gas switch and method of operation. United States: N. p., 2019. Web.
Sommerer, Timothy John, & Selezneva, Svetlana. Low sputtering, cross-field, gas switch and method of operation. United States.
Sommerer, Timothy John, and Selezneva, Svetlana. Tue . "Low sputtering, cross-field, gas switch and method of operation". United States. https://www.osti.gov/servlets/purl/1576399.
@article{osti_1576399,
title = {Low sputtering, cross-field, gas switch and method of operation},
author = {Sommerer, Timothy John and Selezneva, Svetlana},
abstractNote = {A gas switch includes a gas-tight housing containing an ionizable gas, an anode disposed within the gas-tight housing, and a cathode disposed within the gas-tight housing, where the cathode includes a conduction surface. The gas switch also includes a control grid positioned between the anode and the cathode, where the control grid is arranged to receive a bias voltage to establish a conducting plasma between the anode and the cathode. In addition, the gas switch includes a plurality of magnets selectively arranged to generate a magnetic field proximate the conduction surface that reduces the kinetic energy of charged particles striking the conduction surface and raises the conduction current density at the cathode surface to technically useful levels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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Works referenced in this record:

Plasma switch with chrome, perturbated cold cathode
patent, May 1991


Modulator switch with low voltage control
patent, June 1986


Controllable gas-discharge device
patent, November 2010


Planar crossed-field plasma switch and method
patent, October 1998


Plasma switch with hollow, thermionic cathode
patent, December 1991


Switching apparatus
patent, May 1997


Multi-gap high impedance plasma opening switch
patent, October 1996


Method and apparatus for plasma generation
patent, April 2014


High voltage crossed-field plasma switch
patent, July 1994


Direct current high-pressure glow discharges
patent, August 2002


Hollow cathode plasma switch with magnetic field
patent, July 1992


Compact high voltage power supply
patent, April 1991