Neon gas puff implosions on a high-current microsecond generator with and without a plasma opening switch

Implosions of 2.5-cm-diam neon gas shells on a 1.2 μs quarter-period, 3 MA driver, FALCON, have produced no more than 7.6 kJ of kilovolt neon K-shell radiation. The incorporation of a plasma opening switch produces faster current pulses: up to 1.8 MA in 190 ns. With the higher rate of rise of curren...

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Published in:Journal of applied physics 1992-08, Vol.72 (4), p.1297-1305
Main Authors: DEENEY, C, LEPELL, P. D, WHITNEY, K. G, ROTH, I, NASH, T, WARREN, L, PRASAD, R. R, MCDONALD, C, CHILDERS, F. K, SINCERNY, P, COULTER, M. C
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Language:English
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Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma devices
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cited_by cdi_FETCH-LOGICAL-c254t-44f94c3a640f60e0151a649f107eeef2801f53f6bac06ecdadd3cad60f3375c93
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container_issue 4
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container_title Journal of applied physics
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creator DEENEY, C
LEPELL, P. D
WHITNEY, K. G
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SINCERNY, P
COULTER, M. C
description Implosions of 2.5-cm-diam neon gas shells on a 1.2 μs quarter-period, 3 MA driver, FALCON, have produced no more than 7.6 kJ of kilovolt neon K-shell radiation. The incorporation of a plasma opening switch produces faster current pulses: up to 1.8 MA in 190 ns. With the higher rate of rise of current, neon gas puffs have produced up to 13.5 kJ of kilovolt K-shell radiation. Numerical calculations indicate that this increase in radiation is due to the achievement of a higher kinetic energy per ion at higher current levels. Spectroscopic measurements confirm that a significant fraction of the plasma is heated into the K-shell ionization states and that the faster current pulses increase this fraction up to 40%.
doi_str_mv 10.1063/1.351736
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subjects Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma devices
title Neon gas puff implosions on a high-current microsecond generator with and without a plasma opening switch
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