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

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.
Authors:
; ; ; ;  [1] ;  [1] ;  [2]
  1. Institute of High Current Electronics, SB, RAN, Tomsk (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22489847
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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