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Title: Technique for fabrication of ultrathin foils in cylindrical geometry for liner-plasma implosion experiments with sub-megaampere currents

Abstract

In this study, we describe a technique for fabricating ultrathin foils in cylindrical geometry for liner-plasma implosion experiments using sub-MA currents. Liners are formed by wrapping a 400 nm, rectangular strip of aluminum foil around a dumbbell-shaped support structure with a non-conducting center rod, so that the liner dimensions are 1 cm in height, 6.55 mm in diameter, and 400 nm in thickness. The liner-plasmas are imploded by discharging ~600 kA with ~200 ns rise time using a 1 MA linear transformer driver, and the resulting implosions are imaged four times per shot using laser-shadowgraphy at 532 nm. As a result, this technique enables the study of plasma implosion physics, including the magneto Rayleigh-Taylor, sausage, and kink instabilities on initially solid, imploding metallic liners with university-scale pulsed power machines.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1229753
Alternate Identifier(s):
OSTI ID: 1226511
Grant/Contract Number:  
SC0012328
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 86; Journal Issue: 11; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Rayleigh-Taylor instability; aluminum; plasma instability; z-pinch; linear transformer driver; macroinstabilities; magnetic fields; anodes

Citation Formats

Yager-Elorriaga, D. A., Steiner, A. M., Patel, S. G., Jordan, N. M., Lau, Y. Y., and Gilgenbach, R. M. Technique for fabrication of ultrathin foils in cylindrical geometry for liner-plasma implosion experiments with sub-megaampere currents. United States: N. p., 2015. Web. doi:10.1063/1.4935838.
Yager-Elorriaga, D. A., Steiner, A. M., Patel, S. G., Jordan, N. M., Lau, Y. Y., & Gilgenbach, R. M. Technique for fabrication of ultrathin foils in cylindrical geometry for liner-plasma implosion experiments with sub-megaampere currents. United States. doi:10.1063/1.4935838.
Yager-Elorriaga, D. A., Steiner, A. M., Patel, S. G., Jordan, N. M., Lau, Y. Y., and Gilgenbach, R. M. Thu . "Technique for fabrication of ultrathin foils in cylindrical geometry for liner-plasma implosion experiments with sub-megaampere currents". United States. doi:10.1063/1.4935838. https://www.osti.gov/servlets/purl/1229753.
@article{osti_1229753,
title = {Technique for fabrication of ultrathin foils in cylindrical geometry for liner-plasma implosion experiments with sub-megaampere currents},
author = {Yager-Elorriaga, D. A. and Steiner, A. M. and Patel, S. G. and Jordan, N. M. and Lau, Y. Y. and Gilgenbach, R. M.},
abstractNote = {In this study, we describe a technique for fabricating ultrathin foils in cylindrical geometry for liner-plasma implosion experiments using sub-MA currents. Liners are formed by wrapping a 400 nm, rectangular strip of aluminum foil around a dumbbell-shaped support structure with a non-conducting center rod, so that the liner dimensions are 1 cm in height, 6.55 mm in diameter, and 400 nm in thickness. The liner-plasmas are imploded by discharging ~600 kA with ~200 ns rise time using a 1 MA linear transformer driver, and the resulting implosions are imaged four times per shot using laser-shadowgraphy at 532 nm. As a result, this technique enables the study of plasma implosion physics, including the magneto Rayleigh-Taylor, sausage, and kink instabilities on initially solid, imploding metallic liners with university-scale pulsed power machines.},
doi = {10.1063/1.4935838},
journal = {Review of Scientific Instruments},
number = 11,
volume = 86,
place = {United States},
year = {2015},
month = {11}
}

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Works referenced in this record:

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    Works referencing / citing this record:

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    The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA
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