Topology of steady-state plasma configurations in transverse self-consistent fields: Spatial-periodic structures: II.

Komarov, N.N.; Kvartskhava, I.F.; Fadeev, V. M.

doi:10.1088/0029-5515/5/3/002

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…The first observations of distinct current filaments were performed by means high-speed photography within Z-pinch discharges, which were produced inside vacuum chambers of different shapes. In particular, numerous filaments were recorded in Z-pinch experiments with chambers of rectangular or polygon cross-sections [1].…”

Section: Introductionmentioning

confidence: 99%

Formation and role of filaments in high-current discharges of the pinch type

Sadowski

Malinowska

2006

Czech J Phys

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The paper concerns distinct current filaments which appear inside plasma layers and columns produced by high-current pulse discharges of the Z-pinch and Plasma-Focus (PF) type. Results obtained previously, e. g. pictures taken with high-speed cameras, soft X-ray pinhole images, measurements of angular distributions of fast deuterons, images of so-called hot-spots inside the pinch column etc., have been reviewed and explained on the basis of the filamentary model. For the first time results of the measurements of fusion-produced protons, which were performed at different azimuthal angles (around the pinch column), have been presented. These results constitute a new experimental evidence of the appearance and role of the current filaments in pinch-type discharges.

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Section: Introductionmentioning

confidence: 99%

Formation and role of filaments in high-current discharges of the pinch type

Sadowski

Malinowska

2006

Czech J Phys

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Self-Consistent Kinetic Model for Two-Dimensional Cusped and Minimum-B Type Equilibria

Sestero¹

1969

The Physics of Fluids

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Self-focusing of local plasma currents

Fadeev¹,

Kvabtskhava²,

Komarov³

1965

Nucl. Fusion

123

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For a Boltzmann distribution function, neglecting collisions and in the presence of a longitudinal external magnetic field, the self-consistent equilibrium configuration is found for a plasma with components s; this configuration represents an infinitely extended plane layer consisting of periodically recurring quasi-filaments of current for each of which the Bennett self-focusing condition I = 2 θs/qsβs is fulfilled. The filaments may be considered the result of the continuous topological transformation of a homogeneous plane layer having the characteristic dimension kg02 = 2 π n0 Σ (qs2 βs2/θs2) since the condition indicated is fulfilled for an element of the homogeneous layer in the range —∞≤ x ≤∞, —π/kg0 ≤ y ≤ π/kg0. During this transformation the characteristic dimensions, the total current and the energy of the y component of the magnetic field of the filaments remain constant. With increasing depth of the modulation, characterized by the parameter only the energy of the x component of the magnetic field grows (proportionally to y in the linear case).The authors examined the stability of a homogeneous plane layer with respect to perturbations of the type jz=jz(x) exp (ωt+i ky), as well as the factors giving rise to filaments and their in high current discharge processes.

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Topology of steady-state plasma configurations in transverse self-consistent fields: Spatial-periodic structures: II.

Cited by 5 publications

References 6 publications

Formation and role of filaments in high-current discharges of the pinch type

Formation and role of filaments in high-current discharges of the pinch type

Self-Consistent Kinetic Model for Two-Dimensional Cusped and Minimum-B Type Equilibria

Self-focusing of local plasma currents

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