skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

This content will become publicly available on May 8, 2020

Title: X-ray radiography of the overheating instability in underwater electrical explosions of wires

Abstract

We introduce the measurements of the development of striation like instabilities during the electrical driven explosions of wires in a water bath. In vacuum based wire explosion experiments, such instabilities have long been known. Yet, in spite of intense research into the explosion of wires in liquids, the development of these instabilities has either not been observed or has been assumed to play a minor role in the parameters of the exploding wire due to the tamping of the wire's explosion. Using synchrotron based multiframe radiography, we have seen the development of platelike density structures along an exploding copper wire. Our measurements were compared to a 2D magnetohydrodynamics simulation, showing similar striation formation. These observed instabilities could affect the measurements of the conductivity of the wire material in the gas-plasma state—an important parameter in the warm dense matter community. The striations could also act as a seed for other instabilities later in time if the wire is in a dense flow of material or experiences a shock from an adjacent wire—as it would do in experiments with arrays of wires.

Authors:
 [1]; ORCiD logo [2];  [1]; ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [3];  [4]
  1. Imperial College, London (United Kingdom)
  2. Technion-Israel Inst. of Technology, Haifa (Israel)
  3. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  4. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1512428
Grant/Contract Number:  
NA0003764
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 26; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Yanuka, D., Rososhek, A., Theocharous, S., Bland, S. N., Krasik, Ya. E., Olbinado, M. P., Rack, A., and Oreshkin, E. V. X-ray radiography of the overheating instability in underwater electrical explosions of wires. United States: N. p., 2019. Web. doi:/10.1063/1.5089813.
Yanuka, D., Rososhek, A., Theocharous, S., Bland, S. N., Krasik, Ya. E., Olbinado, M. P., Rack, A., & Oreshkin, E. V. X-ray radiography of the overheating instability in underwater electrical explosions of wires. United States. doi:/10.1063/1.5089813.
Yanuka, D., Rososhek, A., Theocharous, S., Bland, S. N., Krasik, Ya. E., Olbinado, M. P., Rack, A., and Oreshkin, E. V. Wed . "X-ray radiography of the overheating instability in underwater electrical explosions of wires". United States. doi:/10.1063/1.5089813.
@article{osti_1512428,
title = {X-ray radiography of the overheating instability in underwater electrical explosions of wires},
author = {Yanuka, D. and Rososhek, A. and Theocharous, S. and Bland, S. N. and Krasik, Ya. E. and Olbinado, M. P. and Rack, A. and Oreshkin, E. V.},
abstractNote = {We introduce the measurements of the development of striation like instabilities during the electrical driven explosions of wires in a water bath. In vacuum based wire explosion experiments, such instabilities have long been known. Yet, in spite of intense research into the explosion of wires in liquids, the development of these instabilities has either not been observed or has been assumed to play a minor role in the parameters of the exploding wire due to the tamping of the wire's explosion. Using synchrotron based multiframe radiography, we have seen the development of platelike density structures along an exploding copper wire. Our measurements were compared to a 2D magnetohydrodynamics simulation, showing similar striation formation. These observed instabilities could affect the measurements of the conductivity of the wire material in the gas-plasma state—an important parameter in the warm dense matter community. The striations could also act as a seed for other instabilities later in time if the wire is in a dense flow of material or experiences a shock from an adjacent wire—as it would do in experiments with arrays of wires.},
doi = {/10.1063/1.5089813},
journal = {Physics of Plasmas},
number = 5,
volume = 26,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on May 8, 2020
Publisher's Version of Record

Save / Share: