Results 211 to 220 of about 35,157 (258)
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Evolution of an X-pinch plasma
Physics of Fluids B: Plasma Physics, 1990The evolution of a dynamic X-pinch plasma, formed by two or more intersecting crossed copper wires, is investigated theoretically and numerically in two dimensions to determine the behavior at the point of intersection. An X-pinch plasma for conditions corresponding to (a) pure hydrodynamic and (b) nonlocal thermodynamic equilibrium radiation ...
F. L. Cochran, J. Davis
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Plasma Containment in the Theta Pinch
The Physics of Fluids, 1963An experimental investigation of the containment time of plasma in a theta pinch is described. Observations of changes in the plasma diamagnetism have been made, analysis of which leads to a determination of the field trapping conditions in the plasma and of the variations in line density of the plasma which take place during a discharge.
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On Non-Stationary Pinch in Electron-Hole Plasma
Physica Status Solidi (a), 1971A study is made of the non-stationary contraction of an electron-hole plasma by the magnetic field which is generated by the current flowing through the crystal. Two geometries of the crystal (cylinder and plate shape) have been examined. The influence of bulk recombination on the process of pinching as well as on the condition of collapse has been ...
I. I. Boiko, V. M. Chernousenko
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The containment of plasma by the pinch discharge
Philosophical Magazine, 1958Abstract When a strong current is flowing axially in a plasma, with cylindrical geometry, the charged particles of the plasma will be prevented from striking the cylindrical wall both by the self-magnetic field of the current and, in the case of the positive ions, by the electric field due to the negative charge in the region of the current ...
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1999
A fully consistent approach requires a study of Z-pinch dynamics. We emphasize the dynamics of Z-pinch plasmas or imploding plasmas, since dynamics certainly substantially affects Z-pinch parameters. While the pulsed-power generator characteristics strongly affect pinch parameters, depending on the goal of applications (fusion, neutron production, x ...
Michael A. Liberman +3 more
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A fully consistent approach requires a study of Z-pinch dynamics. We emphasize the dynamics of Z-pinch plasmas or imploding plasmas, since dynamics certainly substantially affects Z-pinch parameters. While the pulsed-power generator characteristics strongly affect pinch parameters, depending on the goal of applications (fusion, neutron production, x ...
Michael A. Liberman +3 more
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An inverse pinch plasma source for plasma opening switches
IEEE Transactions on Plasma Science, 2000A plasma source has been developed for use in cylindrical plasma opening switches (POS). The "inverse pinch" (IP) produces a radially expanding plasma ring formed from a gas puff and is designed to be mounted inside the center conductor of a POS. Interferometric measurements and magnetic probes were used to study the expansion dynamics of the plasma ...
J.J. Moschella +3 more
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Nitrogen laser system for diagnosing z-pinch and x-pinch plasmas
Review of Scientific Instruments, 1997A nitrogen laser system built to probe dense z-pinch and x-pinch plasmas is described. This low-cost system consists of an atmospheric pressure oscillator and a low pressure amplifier. It generates a 1-cm-diam 3371 Å laser beam with approximately 0.33 mJ in a ≲1 ns pulse, and with a coherence length of at least 5 cm. This laser has been used in several
Daniel H. Kalantar +2 more
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Oscillations of a plasma pinch
1989In the previous chapter small oscillations of a gravitating plasma layer have been studied in detail. The technique developed for this purpose can mutatis mutandis be used in order to describe oscillations for a plasma pinch. Being more or less formal it needs only minor alterations. The investigation of pinch oscillations is interesting in itself, and
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Hydrodynamics of plasma in a dense pinch
Physica A: Statistical Mechanics and its Applications, 1981Abstract Equilibrium configurations and low-frequency radial oscillations (ionic sound) in dense streams of charged particles are considered in the approximation of hydrodynamics of ideal electron and ion liquids, interacting via the electromagnetic field created by the charges. The macroscopic approach used in this paper is valid without assumptions
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Vortex-Induced Diffusivity In Reversed Field Pinch Plasmas
Physical Review Letters, 2004Coherent structures identified in two reversed field pinch experiments are interpreted as a dynamic balance of dipolar and monopolar vortices growing and evolving under the effect of the ExB flow shear. For the first time their contribution to the anomalous transport has been estimated in fusion related plasmas, showing that they can account for up to ...
Spolaore M +9 more
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