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Characteristics of plasma-puff trigger for a inverse-pinch plasma switchThe plasma-puff triggering mechanism based on a hypocycloidal pinch geometry was investigated to determine the optimal operating conditions for the azimuthally uniform surface flashover which initiates plasma-puff under wide ranges of fill gas pressure of Ar, He and N2. The optimal fill-gas pressure range for the azimuthally uniform plasma-puff was about 120 mTorr less than or equal to P(sub op) less than or equal to 450 Torr for He and N2. For Argon 120 mTorr is less than or equal to P(sub op) is less than or equal to 5 Torr. The inverse-pinch switch was triggered with the plasma-puff and the switching capability under various electrical parameters and working gas pressures of Ar, He and N2 was determined. The azimuthally uniform switching discharges were dependent on the type of fill gas and its fill pressure. A new concept of plasma-focus driven plasma-puff will be discussed in comparison with the current hypocycloidal-pinch plasma-puff triggering.
Document ID
19940016818
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Choi, Eun H.
(Hampton Univ. VA, United States)
Venable, Demetrius D.
(Hampton Univ. VA, United States)
Han, Kwang S.
(Hampton Univ. VA, United States)
Lee, Ja H.
(Hampton Univ. VA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Research on Plasma-Puff Initiation of High Coulomb Transfer Switches
Subject Category
Plasma Physics
Accession Number
94N21291
Funding Number(s)
CONTRACT_GRANT: DAAL03-89-G-0113
CONTRACT_GRANT: NAG1-970
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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