Experimental study of the nonlinear diffusion of a magnetic field and skin explosion of cylindrical conductors

Journal Article · Sun Nov 15 00:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4935401· OSTI ID:22489847

Chaikovsky, S. A.; Datsko, I. M.; Labetskaya, N. A.; Rybka, D. V.; Ratakhin, N. A. ^[1]; Oreshkin, V. I. ^[1]

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1. Institute of High Current Electronics, SB, RAN, Tomsk (Russian Federation)

The paper presents the results of an experimental study of the skin explosion of cylindrical conductors of diameter 1–3 mm (copper, aluminum, titanium, steel 3, and stainless steel) at a peak magnetic field of 200–600 T. The experiments were carried out on the MIG pulsed power generator at a current of up to 2.5 MA and a current rise time of 100 ns. The surface explosion of a conductor was identified by the appearance of a flash of extreme ultraviolet radiation. A minimum magnetic induction has been determined below which no plasma is generated at the conductor surface. For copper, aluminum, steel 3, titanium, and stainless steel, the minimum magnetic induction has been estimated to be (to within 10%) 375, 270, 280, 220, and 245 T, respectively.

• OSTI ID: 22489847
• Journal Information: Physics of Plasmas, Vol. 22, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
COPPER
CYLINDRICAL CONFIGURATION
DIFFUSION
ELECTRIC CURRENTS
EXPERIMENTAL DATA
EXTREME ULTRAVIOLET RADIATION
MAGNETIC FIELDS
NONLINEAR PROBLEMS
PLASMA
PULSE RISE TIME
STAINLESS STEELS
SURFACE EXPLOSIONS
TITANIUM