Hybrid simulations of Z-Pinches in support of wire array implosion experiments at NTF.

Conference · Fri Jul 01 00:00:00 EDT 2005

OSTI ID:968389

Sotnikov, Vladimir Isaakovich ^[1]; Oliver, Bryan Velten ^[2]; Ivanov, Vladimir V ^[1]; LePell, Paul David ^[3]; Fedin, Dmitry ^[1]; Kantsyrev, Victor Leonidovich ^[1]; Coverdale, Christine Anne; Travnicek, P ^[4]; Deeney, Christopher; Hellinger, P ^[4]; Jones, B; Leboeuf, J N ^[5]; Cowan, Thomas E ^[1]; Safronova, Alla S ^[1]

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1. Department of Physics, Reno, NV
2. TK-MRC, Albuquerque, NM
3. Ktech Corporation, Albuquerque, NM
4. IAP, Prague 4, Czech Republic
5. Department of Physics, Los Angeles, CA

Three-dimensional hybrid simulation of a plasma current-carrying column reveal two different regimes of sausage and kink instability development. In the first regime, with small Hall parameter, development of instabilities leads to the appearance of large-scale axial perturbations and eventually to bending of the plasma column. In the second regime, with a four-times-larger Hall parameter, small-scale perturbations dominate and no bending of the plasma column is observed. Simulation results are compared with laser probing experimental data obtained during wire array implosions on the Zebra pulse power generator at the Nevada Terawatt Facility.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 968389
• Report Number(s): SAND2005-4317C
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
DISTURBANCES
IMPLOSIONS
KINK INSTABILITY
LINEAR Z PINCH DEVICES
SAUSAGE INSTABILITY
THREE-DIMENSIONAL CALCULATIONS