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Title: Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5–50)×10 8A/cm 2

Abstract

Electric explosions of flat Al, Тi, Ni, Cu, and Та foils with thicknesses of 1–16 μm, widths of 1–8 mm, and lengths of 5–11 mm were studied experimentally on the BIN, XP, and COBRA high-current generators at currents of 40–1000 kA and current densities of (5–50) × 10 8A/cm 2. The images of the exploded foils were taken at different angles to the foil surface by using point projection radiography with an X-pinch hot spot as the radiation source, the spatial resolution and exposure time being 3 μm and 50 ps, respectively, as well by the laser probing method with a spatial resolution of 20 μm and an exposure time of 180 ps. In the course of foil explosion, rapidly expanding objects resembling the core and corona of an exploded wire were observed. To this end, it is shown that the core of the exploded foil has a complicated time-varying structure.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2]
  1. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  2. Cornell Univ., Ithaca, NY (United States)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1499646
Grant/Contract Number:  
NA0001836; NA0003764
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 44; Journal Issue: 2; Journal ID: ISSN 1063-780X
Publisher:
Pleiades Publishing
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Mingaleev, A. R., Atoyan, L., and Hammer, D. A.. Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5–50)×108A/cm2. United States: N. p., 2018. Web. doi:10.1134/S1063780X18020113.
Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Mingaleev, A. R., Atoyan, L., & Hammer, D. A.. Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5–50)×108A/cm2. United States. doi:10.1134/S1063780X18020113.
Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Mingaleev, A. R., Atoyan, L., and Hammer, D. A.. Sat . "Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5–50)×108A/cm2". United States. doi:10.1134/S1063780X18020113. https://www.osti.gov/servlets/purl/1499646.
@article{osti_1499646,
title = {Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5–50)×108A/cm2},
author = {Shelkovenko, T. A. and Pikuz, S. A. and Tilikin, I. N. and Mingaleev, A. R. and Atoyan, L. and Hammer, D. A.},
abstractNote = {Electric explosions of flat Al, Тi, Ni, Cu, and Та foils with thicknesses of 1–16 μm, widths of 1–8 mm, and lengths of 5–11 mm were studied experimentally on the BIN, XP, and COBRA high-current generators at currents of 40–1000 kA and current densities of (5–50) × 108A/cm2. The images of the exploded foils were taken at different angles to the foil surface by using point projection radiography with an X-pinch hot spot as the radiation source, the spatial resolution and exposure time being 3 μm and 50 ps, respectively, as well by the laser probing method with a spatial resolution of 20 μm and an exposure time of 180 ps. In the course of foil explosion, rapidly expanding objects resembling the core and corona of an exploded wire were observed. To this end, it is shown that the core of the exploded foil has a complicated time-varying structure.},
doi = {10.1134/S1063780X18020113},
journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 2,
volume = 44,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
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Cited by: 1 work
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