Observations of modified three-dimensional instability structure for imploding z-pinch liners that are premagnetized with an axial field.
Novel experimental data are reported that reveal helical instability formation on imploding z-pinch liners that are premagnetized with an axial field. Such instabilities differ dramatically from the mostly azimuthally symmetric instabilities that form on unmagnetized liners. The helical structure persists at nearly constant pitch as the liner implodes. This is surprising since, at the liner surface, the azimuthal drive field presumably dwarfs the axial field for all but the earliest stages of the experiment. These fundamentally 3D results provide a unique and challenging test for 3D-magnetohydrodynamics simulations.
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Awe
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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McBride
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Jennings
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Lamppa
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Martin
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Rovang
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Slutz
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Cuneo
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Owen
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Sinars
General Atomics, San Diego, California 92121, USA.
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Tomlinson
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Gomez
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Hansen
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Herrmann
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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McKenney
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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Nakhleh
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Robertson
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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GA
Rochau
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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ME
Savage
General Atomics, San Diego, California 92121, USA.
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Schroen
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
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Stygar