Instability heating of a solid fiber Z-pinch

Riley, R.; Scudder, D.; Shlachter, J.; Lovberg, R.
April 1996
Physics of Plasmas;Apr96, Vol. 3 Issue 4, p1314
Academic Journal
Studies a dense Z-pinch formed by the electrical breakdown of solid CD[sub2] fibers in an 800 kA, 100 ns risetime pulse generator with optical and radiation diagnostics. Calculations based on classical joule heating of the plasma that predict approximate dynamic equilibrium; Expansion of the pinch while displaying intense hydromagnetic instability activity.


Related Articles

  • Nonlinear dynamics of tearing modes in the reversed field pinch. Holmes, J. A.; Carreras, B. A.; Diamond, P. H.; Lynch, V. E. // Physics of Fluids (00319171);May88, Vol. 31 Issue 5, p1166 

    The results of investigations of nonlinear tearing-mode dynamics in reversed field pinch plasmas are described. The linear instabilities have poloidal mode number m=1 and toroidal mode numbers 10<=n<=20, and the resonant surfaces are therefore in the plasma core. The nonlinear dynamics result in...

  • Linear stability analysis of compact toroidal plasmas using particle simulation. Mikic, Zoran; Morse, Edward C. // Physics of Fluids (00319171);Sep87, Vol. 30 Issue 9, p2806 

    A technique is presented for the linear three-dimensional stability analysis of plasmas in which ion kinetic effects are important. This technique is appropriate for the analysis of compact toroidal plasmas such as spheromaks, field-reversed mirrors and theta pinches, field-reversed...

  • Nonquasineutral Model of an Equilibrium Z-Pinch. Gordeev, A. V. // Plasma Physics Reports;Mar2001, Vol. 27 Issue 3, p235 

    Proposes an approach for describing Z-pinches when the pinch current is governed to a large extent by strong sharge separation which gives rise to a radial to a radial electric field in the nonquasineutral core of the pinch. Distribution of drifting electrons and the remaining current in the...

  • Simulation of Z-pinch dynamics in a high-current plasma lens with a new one-dimensional model... Kumpf, C.; Kowalewicz, R.; Stetter, M.; Tkotz, R. // Physics of Plasmas;Mar1996, Vol. 3 Issue 3, p922 

    Discusses the dynamics of a fast Z-pinch plasma lens with a one-dimensional model for the phase of constriction. Description of pinch dynamics and current density distribution up to the time of minimum plasma radius; Evaluation of focus quality of the lens; Equations of inverse skin effect;...

  • Estimation of the electrical resistivity in field-reversed configuration plasmas from detailed interferometric measurements. Okada, S.; Kiso, Y.; Goto, S.; Ishimura, T. // Physics of Fluids B: Plasma Physics;Dec89, Vol. 1 Issue 12, p2422 

    Electrical resistivity at the magnetic axis η(R) and at the separatrix η(rs) of a field-reversed configuration (FRC) plasma produced by theta pinch machines are estimated from detailed interferometric measurements, assuming that the temperature is uniform within the separatrix. The ratio...

  • 80 kV, 8.9 kJ plasma focus experiments. Fishbine, B. H.; Mather, J. W.; Woodall, D. M. // Physics of Fluids B: Plasma Physics;Oct92, Vol. 4 Issue 10, p3344 

    High-voltage, low-energy, Mather-geometry plasma focus experiments were performed to study large sheath formation input power, fast rundown, and current optimization and stabilization during collapse and pinch. For the parameters of these experiments, large bank impedance and short implosion...

  • Z-pinch discharges in aluminum and tungsten wires. Ruiz-Camacho, J.; Beg, F. N.; Dangor, A.E.; Haines, M.G.; Clark, E.L.; Ross, I. // Physics of Plasmas;Jun99, Vol. 6 Issue 6, p2579 

    Analyzes Z-pinch plasma discharges in aluminum and tungsten wires. Expansion of the coronal plasma of various diameters of aluminum and tungsten wires; Persistence of short wavelength perturbations for a longer time for larger diameter tungsten wires; Decay time of bright spots.

  • Numerical study of the dynamics of Z-pinch carbon plasmas. Lee, K.T.; Kim, S.H.; Kim, D.; Lee, T.N. // Physics of Plasmas;Apr96, Vol. 3 Issue 4, p1340 

    Investigates the dynamics of Z-pinch carbon plasma using one-dimensional Lagrangian code. Calculation of the single-fluid, two-temperature magnetohydrodynamic equations coupled with an ionization balance equation; Motion of plasma column and shock front; Effect of the radiative trapping of...

  • Radiation modeling in dynamic Z-pinches. Davis, J.; Giuliani, J.; Clark, R.; Apruzese, J.; Thornhill, J.; Whitney, K.; Dasgupta, A.; Velikovich, A.; Chong, Y.; Rudakov, L.; Terry, R.; Kepple, P. // AIP Conference Proceedings;2000, Vol. 547 Issue 1, p69 

    A brief discussion is presented on some of the methodologies and models that have been employed in modeling radiation production and radiation transport in Z-pinch plasmas. The consequences that stem from the compromises and trade-offs that result from different approximations used for the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics