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Title: Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA

Abstract

The initial stage of the nanosecond explosion of 1–15 μm-thick flat foils in a diode with a current of 40–80 kA is studied. Projection radiography is used to take images of exploded foils at a spatial resolution of 3–4 μm using the soft X-ray radiation (E = 2.5–5 keV) of a hybrid X-pinch and at a time resolution of 0.1 ns. Foil strips 0.3–2 mm wide and 0.5–7 mm long were introduced in the return circuit of the diode in a high-current BIN generator with a current amplitude of 270 kA and a current rise time of 100 ns; the main load of the generator is an X-pinch. The experiments demonstrate that small-scale structures, the shape and the size of which depend on the foil material and the current density and distribution in a foil, are formed in a foil. Possible scenarios of the structure formation are discussed.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Russian Academy of Sciences (RAS), Moscow (Russian Federation). Lebedev Physical Inst.
Publication Date:
Research Org.:
USDOE; Russian Foundation for Basic Research
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1543424
Grant/Contract Number:  
NA0003764
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 128; Journal Issue: 6; Journal ID: ISSN 1063-7761
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Tilikina, I. N., Shelkovenkoa, T. A., Mingaleeva, A. R., Romanovaa, V. M., and Pikuz, S. A. Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA. United States: N. p., 2019. Web. doi:10.1134/S1063776119050157.
Tilikina, I. N., Shelkovenkoa, T. A., Mingaleeva, A. R., Romanovaa, V. M., & Pikuz, S. A. Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA. United States. doi:10.1134/S1063776119050157.
Tilikina, I. N., Shelkovenkoa, T. A., Mingaleeva, A. R., Romanovaa, V. M., and Pikuz, S. A. Tue . "Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA". United States. doi:10.1134/S1063776119050157.
@article{osti_1543424,
title = {Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA},
author = {Tilikina, I. N. and Shelkovenkoa, T. A. and Mingaleeva, A. R. and Romanovaa, V. M. and Pikuz, S. A.},
abstractNote = {The initial stage of the nanosecond explosion of 1–15 μm-thick flat foils in a diode with a current of 40–80 kA is studied. Projection radiography is used to take images of exploded foils at a spatial resolution of 3–4 μm using the soft X-ray radiation (E = 2.5–5 keV) of a hybrid X-pinch and at a time resolution of 0.1 ns. Foil strips 0.3–2 mm wide and 0.5–7 mm long were introduced in the return circuit of the diode in a high-current BIN generator with a current amplitude of 270 kA and a current rise time of 100 ns; the main load of the generator is an X-pinch. The experiments demonstrate that small-scale structures, the shape and the size of which depend on the foil material and the current density and distribution in a foil, are formed in a foil. Possible scenarios of the structure formation are discussed.},
doi = {10.1134/S1063776119050157},
journal = {Journal of Experimental and Theoretical Physics},
number = 6,
volume = 128,
place = {United States},
year = {2019},
month = {7}
}

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