Investigation of the mechanism for current switching from the outer gas puff to the inner wire array in a structured Z-pinch

Abstract

Experiments are reported on the implosion of structured loads with outer argon, krypton, and xenon gas puffs and an inner tungsten multiwire array. Experiments were carried out in the GIT-12 generator with a current of 2.6 MA and a current rise time of 270 ns. It is shown that the current successfully switches to the wire array only when the gas puff is sufficiently light. The total implosion time is 300 ns, and the implosion time of a wire array, determined from streak camera images, is 50-70 ns. It is suggested that the switching is efficient only when the active impedance of the gas puff is higher than the transitional resistance of the electrically exploded wires.

Original language	English
Pages (from-to)	557-562
Number of pages	6
Journal	Plasma Physics Reports
Volume	27
Issue number	7
DOIs	https://doi.org/10.1134/1.1385433
Publication status	Published - 1 Jul 2001
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Physics and Astronomy (miscellaneous)

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10.1134/1.1385433

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Investigation of the mechanism for current switching from the outer gas puff to the inner wire array in a structured Z-pinch. / Baksht, R. B.; Labetsky, A. Yu; Rousskikh, A. G.; Fedyunin, A. V.; Shishlov, A. V.; Kokshenev, V. A.; Kurmaev, N. E.; Fursov, F. I.

In: Plasma Physics Reports, Vol. 27, No. 7, 01.07.2001, p. 557-562.

Research output: Contribution to journal › Article › peer-review

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title = "Investigation of the mechanism for current switching from the outer gas puff to the inner wire array in a structured Z-pinch",

abstract = "Experiments are reported on the implosion of structured loads with outer argon, krypton, and xenon gas puffs and an inner tungsten multiwire array. Experiments were carried out in the GIT-12 generator with a current of 2.6 MA and a current rise time of 270 ns. It is shown that the current successfully switches to the wire array only when the gas puff is sufficiently light. The total implosion time is 300 ns, and the implosion time of a wire array, determined from streak camera images, is 50-70 ns. It is suggested that the switching is efficient only when the active impedance of the gas puff is higher than the transitional resistance of the electrically exploded wires.",

author = "Baksht, {R. B.} and Labetsky, {A. Yu} and Rousskikh, {A. G.} and Fedyunin, {A. V.} and Shishlov, {A. V.} and Kokshenev, {V. A.} and Kurmaev, {N. E.} and Fursov, {F. I.}",

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AU - Baksht, R. B.

AU - Labetsky, A. Yu

AU - Rousskikh, A. G.

AU - Fedyunin, A. V.

AU - Shishlov, A. V.

AU - Kokshenev, V. A.

AU - Kurmaev, N. E.

AU - Fursov, F. I.

PY - 2001/7/1

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N2 - Experiments are reported on the implosion of structured loads with outer argon, krypton, and xenon gas puffs and an inner tungsten multiwire array. Experiments were carried out in the GIT-12 generator with a current of 2.6 MA and a current rise time of 270 ns. It is shown that the current successfully switches to the wire array only when the gas puff is sufficiently light. The total implosion time is 300 ns, and the implosion time of a wire array, determined from streak camera images, is 50-70 ns. It is suggested that the switching is efficient only when the active impedance of the gas puff is higher than the transitional resistance of the electrically exploded wires.

AB - Experiments are reported on the implosion of structured loads with outer argon, krypton, and xenon gas puffs and an inner tungsten multiwire array. Experiments were carried out in the GIT-12 generator with a current of 2.6 MA and a current rise time of 270 ns. It is shown that the current successfully switches to the wire array only when the gas puff is sufficiently light. The total implosion time is 300 ns, and the implosion time of a wire array, determined from streak camera images, is 50-70 ns. It is suggested that the switching is efficient only when the active impedance of the gas puff is higher than the transitional resistance of the electrically exploded wires.

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Investigation of the mechanism for current switching from the outer gas puff to the inner wire array in a structured Z-pinch

Abstract

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