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Title: Helical plasma striations in liners in the presence of an external axial magnetic field

Abstract

Awe et al. found on the 20 MA Z machine [Acta Phys. Pol. A 115, 956 (2009)] that applying an externally generated axial magnetic field to an imploding liner leads to a helical pattern in the liner when viewed with soft x-ray radiography ([Phys. Rev. Lett. 111, 235005 (2013)] and [Phys. Plasmas 21, 056303 (2014)]). We show that this phenomenon is also observed in extreme ultraviolet self-emission images of 10 mm long cylindrical metal liners having varying diameters and varying wall thicknesses on a 1 MA, 100–200 ns pulsed power generator. The magnetic field in these experiments is created using either twisted return current wires positioned close to the liner, generating a time-varying B z, or a Helmholtz coil, generating a steady-state B z.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1];  [2];  [3]
  1. Cornell Univ., Ithaca, NY (United States). Lab. of Plasma Studies
  2. Cornell Univ., Ithaca, NY (United States). Lab. of Plasma Studies; ; Russian Academy of Sciences (RAS), Moscow (Russian Federation). Lebedev Physical Inst. (LPI)
  3. Cornell Univ., Ithaca, NY (United States). Lab. of Plasma Studies; Russian Academy of Sciences (RAS), Moscow (Russian Federation). Lebedev Physical Inst. (LPI)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
OSTI Identifier:
1470170
Alternate Identifier(s):
OSTI ID: 1239853
Grant/Contract Number:  
NA0001836; PHY-1102471
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 2; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Atoyan, L., Hammer, D. A., Kusse, B. R., Byvank, T., Cahill, A. D., Greenly, J. B., Pikuz, S. A., and Shelkovenko, T. A. Helical plasma striations in liners in the presence of an external axial magnetic field. United States: N. p., 2016. Web. doi:10.1063/1.4942787.
Atoyan, L., Hammer, D. A., Kusse, B. R., Byvank, T., Cahill, A. D., Greenly, J. B., Pikuz, S. A., & Shelkovenko, T. A. Helical plasma striations in liners in the presence of an external axial magnetic field. United States. https://doi.org/10.1063/1.4942787
Atoyan, L., Hammer, D. A., Kusse, B. R., Byvank, T., Cahill, A. D., Greenly, J. B., Pikuz, S. A., and Shelkovenko, T. A. Mon . "Helical plasma striations in liners in the presence of an external axial magnetic field". United States. https://doi.org/10.1063/1.4942787. https://www.osti.gov/servlets/purl/1470170.
@article{osti_1470170,
title = {Helical plasma striations in liners in the presence of an external axial magnetic field},
author = {Atoyan, L. and Hammer, D. A. and Kusse, B. R. and Byvank, T. and Cahill, A. D. and Greenly, J. B. and Pikuz, S. A. and Shelkovenko, T. A.},
abstractNote = {Awe et al. found on the 20 MA Z machine [Acta Phys. Pol. A 115, 956 (2009)] that applying an externally generated axial magnetic field to an imploding liner leads to a helical pattern in the liner when viewed with soft x-ray radiography ([Phys. Rev. Lett. 111, 235005 (2013)] and [Phys. Plasmas 21, 056303 (2014)]). We show that this phenomenon is also observed in extreme ultraviolet self-emission images of 10 mm long cylindrical metal liners having varying diameters and varying wall thicknesses on a 1 MA, 100–200 ns pulsed power generator. The magnetic field in these experiments is created using either twisted return current wires positioned close to the liner, generating a time-varying Bz, or a Helmholtz coil, generating a steady-state Bz.},
doi = {10.1063/1.4942787},
url = {https://www.osti.gov/biblio/1470170}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 2,
volume = 23,
place = {United States},
year = {2016},
month = {2}
}

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Works referenced in this record:

Electrothermal Instability Mitigation by Using Thick Dielectric Coatings on Magnetically Imploded Conductors
journal, April 2014


The Refurbished Z Facility: Capabilities and Recent Experiments
journal, June 2009


Pulsed-power-driven cylindrical liner implosions of laser preheated fuel magnetized with an axial field
journal, May 2010


Evolution of helical perturbations in a thin-shell model of an imploding liner
journal, November 2014


Diagnostics on the COBRA pulsed power generator
journal, October 2006


The production and evolution of multiple converging radiative shock waves in gas-filled cylindrical liner z-pinch experiments
journal, March 2013


Investigation of the effect of a power feed vacuum gap in solid liner experiments at 1 MA
journal, September 2015


Electrothermal instability growth in magnetically driven pulsed power liners
journal, September 2012


Initial magnetic field compression studies using gas-puff Z -pinches and thin liners on COBRA
journal, July 2013


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    Discrete helical modes in imploding and exploding cylindrical, magnetized liners
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    Evolution of sausage and helical modes in magnetized thin-foil cylindrical liners driven by a Z-pinch
    journal, May 2018


    The generation of mega-gauss fields on the Cornell beam research accelerator
    journal, September 2018


    Design of dynamic screw pinch experiments for magnetized liner inertial fusion
    journal, October 2019


    Controlling Rayleigh-Taylor Instabilities in Magnetically Driven Solid Metal Shells by Means of a Dynamic Screw Pinch
    journal, November 2016