Results 161 to 170 of about 8,622 (211)

Axial structure in a theta-pinch plasma

The Physics of Fluids, 1973
Axial irregularities in a θ-pinch plasma are observed during the initial breakdown and main discharge phases. The structure is associated with a gas-breakdown effect. Wavelengths and growth times are consistent with the development of instabilities associated with thermal waves.
Dixon, R., Duechs, D., Elton, R.
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Externally Pinched Plasma

Journal of the Physical Society of Japan, 1958
A new process of pinching a plasma column is treated theoretically. A column of plasma with no longitudinal current can be pinched by an external magnetic field parallel to the column; and the plasma thus pinched will not show any instability. The process depends on the effective value of γ, the ratio of specific heats.
Tihiro Ohkawa, Taro Kihara
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Plasma jet formation in x-pinch plasmas

AIP Conference Proceedings, 2001
Plasma formation in a x-pinch-formed from two 10 μm Al wires at a current of 100 kA- was studied by using a two frame Mach Zender interferometer. It was observed that the plasma column that forms on the axis of the x-pinch, does not come entirely from the coronal plasma from the limbs but rather from the plasma formed at the crossing point region.
R. Aliaga-Rossel, I. H. Mitchell, R. Saavedra, H. Chuaqui, M. Favre, E. S. Wyndham   +5 more
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Z-pinch plasma jet

IEEE Transactions on Plasma Science, 1993
The Z-pinch is formed in a low-pressure pulsed discharge between two conical electrodes having an axial symmetry. In such a configuration, a plasma jet can be created. Results of a jet study by schlieren and interferometric diagnostics are used to design apparatus with a similar electrode configuration, in which the Z-pinch effect drives the plasma ...
P. Kubes, J. Kravarik, J. Hakr, P. Kulhanek, J. Pichal, V. Perina   +5 more
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Pinching Processes in Semiconductor Plasmas

Journal of the Physical Society of Japan, 1970
Adiabatic compression model for the linear pinch in avalanching n -InSb is studied experimentally. The pinching radial velocity and the final pinched radius are determined from the cross sectional dependence of the pinch time, and compared with the theory.
Munecazu Tacano, Shoei Kataoka
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Turbulent pinch in whole-plasma simulations of a dipole-confined plasma

Physical Review E, 2020
Whole-plasma simulations of turbulent transport and upgradient plasma pinch are presented in a dipole magnetic geometry relevant to the Levitated Dipole Experiment (LDX). The self-consistent evolution of an inward particle pinch and the establishment of centrally peaked plasma profiles in a dipole field are explored from whole-plasma simulations using ...
Weike Ou, Lipeng Wang, Bo Li, B. N. Rogers   +3 more
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Plasma Spectroscopy in Pinch Plasmas

2011
Magnetic fields play a very important role in the dynamics of plasmas. Through interactions with the ions and electrons within plasmas, their behaviour and evolution can be drastically influenced. It is the Zeeman effect that is responsible for the splitting of radiative lines observed.
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Mesoatomic processes in a pinch plasma

Soviet Atomic Energy, 1990
where ~pl is the lifetime of a plasma consisting of deuterium and containing cold (T ~ 1 eV) drops o~ a D-T mixture [i] with tritium concentration C T ~ 0.2 [7, 8]; w M, R, and N M are the fraction of the matter in the form of drops, the radius of the drops, and the density of nuclei in the drops, respectively. When the conditions (i) are satisfied the
L. I. Men'shikov, L. N. Somov
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Evolution of an X-pinch plasma

Physics of Fluids B: Plasma Physics, 1990
The 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, 1963
An 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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