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

被引：28

作者：

Atoyan, L. ^{[1
]}

Hammer, D. A. ^{[1
]}

Kusse, B. R. ^{[1
]}

Byvank, T. ^{[1
]}

Cahill, A. D. ^{[1
]}

Greenly, J. B. ^{[1
]}

Pikuz, S. A. ^{[1
,2
]}

Shelkovenko, T. A. ^{[1
,2
]}

机构：

[1] Cornell Univ, Plasma Studies Lab, Rhodes Hall, Ithaca, NY 14853 USA

[2] PN Lebedev Phys Inst, Leninsky Prospect 53, Moscow 117924, Russia

来源：

PHYSICS OF PLASMAS | 2016年 / 23卷 / 02期

基金：

美国国家科学基金会;

关键词：

Magnetoplasma - X ray radiography;

D O I：

10.1063/1.4942787

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

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)]). Here, 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. (C) 2016 AIP Publishing LLC.

引用

页数：7

共 13 条

[1] Early Time Studies of Cylindrical Liner Implosions at 1 MA on COBRA [J].

Atoyan, L. ;

Byvank, T. ;

Cahill, A. D. ;

Hoyt, C. L. ;

de Grouchy, P. W. L. ;

Potter, W. M. ;

Kusse, B. R. ;

Hammer, D. A. .

9TH INTERNATIONAL CONFERENCE ON DENSE Z PINCHES, 2014, 1639 :67-70

[2] Modified helix-like instability structure on imploding z-pinch liners that are pre-imposed with a uniform axial magnetic field [J].

Awe, T. J. ;

Jennings, C. A. ;

McBride, R. D. ;

Cuneo, M. E. ;

Lamppa, D. C. ;

Martin, M. R. ;

Rovang, D. C. ;

Sinars, D. B. ;

Slutz, S. A. ;

Owen, A. C. ;

Tomlinson, K. ;

Gomez, M. R. ;

Hansen, S. B. ;

Herrmann, M. C. ;

Jones, M. C. ;

McKenney, J. L. ;

Robertson, G. K. ;

Rochau, G. A. ;

Savage, M. E. ;

Schroen, D. G. ;

Stygar, W. A. .

PHYSICS OF PLASMAS, 2014, 21 (05)

[3] Observations of Modified Three-Dimensional Instability Structure for Imploding z-Pinch Liners that are Premagnetized with an Axial Field [J].

Awe, T. J. ;

McBride, R. D. ;

Jennings, C. A. ;

Lamppa, D. C. ;

Martin, M. R. ;

Rovang, D. C. ;

Slutz, S. A. ;

Cuneo, M. E. ;

Owen, A. C. ;

Sinars, D. B. ;

Tomlinson, K. ;

Gomez, M. R. ;

Hansen, S. B. ;

Herrmann, M. C. ;

McKenney, J. L. ;

Nakhleh, C. ;

Robertson, G. K. ;

Rochau, G. A. ;

Savage, M. E. ;

Schroen, D. G. ;

Stygar, W. A. .

PHYSICAL REVIEW LETTERS, 2013, 111 (23)

[4] Investigation of the effect of a power feed vacuum gap in solid liner experiments at 1 MA [J].

Bott-Suzuki, S. C. ;

Cordaro, S. W. ;

Bendixsen, L. S. Caballero ;

Blesener, I. C. ;

Atoyan, L. ;

Byvank, T. ;

Potter, W. ;

Bell, K. S. ;

Kusse, B. R. ;

Greenly, J. B. ;

Hammer, D. A. .

PHYSICS OF PLASMAS, 2015, 22 (09)

[5] The production and evolution of multiple converging radiative shock waves in gas-filled cylindrical liner z-pinch experiments [J].

Burdiak, G. C. ;

Lebedev, S. V. ;

Drake, R. P. ;

Harvey-Thompson, A. J. ;

Swadling, G. F. ;

Suzuki-Vidal, F. ;

Skidmore, J. ;

Suttle, L. ;

Khoory, E. ;

Pickworth, L. ;

de Grouchy, P. ;

Hall, G. N. ;

Bland, S. N. ;

Weinwurm, M. ;

Chittenden, J. P. .

HIGH ENERGY DENSITY PHYSICS, 2013, 9 (01) :52-62

[6]

Gomes Marcelo F C, 2014, PLoS Curr, V6, DOI 10.1371/currents.outbreaks.cd818f63d40e24aef769dda7df9e0da5

[7] Initial magnetic field compression studies using gas-puff Z-pinches and thin liners on COBRA [J].

Gourdain, P. -A. ;

Concepcion, R. J. ;

Evans, M. T. ;

Greenly, J. B. ;

Hammer, D. A. ;

Hoyt, C. L. ;

Kroupp, E. ;

Kusse, B. R. ;

Maron, Y. ;

Novick, A. S. ;

Pikuz, S. A. ;

Qi, N. ;

Rondeau, G. ;

Rosenberg, E. ;

Schrafel, P. C. ;

Seyler, C. E. ;

Shelkovenko, T. C. .

NUCLEAR FUSION, 2013, 53 (08)

[8] The Refurbished Z Facility: Capabilities and Recent Experiments [J].

Matzen, M. K. ;

Atherton, B. W. ;

Cuneo, M. E. ;

Donovan, G. L. ;

Hall, C. A. ;

Herrmann, M. ;

Kiefer, M. L. ;

Leeper, R. J. ;

Leifeste, G. T. ;

Long, F. W. ;

Mckee, G. R. ;

Mehlhorn, T. A. ;

Porter, J. L. ;

Schneider, L. X. ;

Struve, K. W. ;

Stygar, W. A. ;

Weinbrecht, E. A. .

ACTA PHYSICA POLONICA A, 2009, 115 (06) :956-958

[9] Electrothermal Instability Mitigation by Using Thick Dielectric Coatings on Magnetically Imploded Conductors [J].

Peterson, Kyle J. ;

Awe, Thomas J. ;

Yu, Edmund P. ;

Sinars, Daniel B. ;

Field, Ella S. ;

Cuneo, Michael E. ;

Herrmann, Mark C. ;

Savage, Mark ;

Schroen, Diana ;

Tomlinson, Kurt ;

Nakhleh, Charles .

PHYSICAL REVIEW LETTERS, 2014, 112 (13)

[10] Electrothermal instability growth in magnetically driven pulsed power liners [J].

Peterson, Kyle J. ;

Sinars, Daniel B. ;

Yu, Edmund P. ;

Herrmann, Mark C. ;

Cuneo, Michael E. ;

Slutz, Stephen A. ;

Smith, Ian C. ;

Atherton, Briggs W. ;

Knudson, Marcus D. ;

Nakhleh, Charles .

PHYSICS OF PLASMAS, 2012, 19 (09)

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