First exploratory survey of poloidal magnetic flux emission from a dense plasma focus

Article Physics, Fluids & Plasmas

New evidence about the nature of plasma filaments in plasma accelerators of type plasma-focus

Cristian Pavez et al.

Summary: This work presents new evidence and information about the origin and evolution of filamentary structures observed in the current sheath of a small plasma focus discharge.

PLASMA PHYSICS AND CONTROLLED FUSION (2023)

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Article Physics, Fluids & Plasmas

Emission of poloidal magnetic flux from a dense plasma focus

S. K. H. Auluck et al.

Summary: This paper summarizes the current experimental knowledge on the existence of a poloidal component of magnetic field in dense plasma focus and its significant role in neuron emission. The study shows that the plasma, acting as a conductor, generates an azimuthal current when moving in a geomagnetic field, and converts kinetic energy into associated magnetic energy to emit poloidal magnetic flux.

PHYSICS OF PLASMAS (2022)

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Article Physics, Fluids & Plasmas

Temporal behavior of hard x-ray and neutron production in plasma focus discharges

P. Kubes et al.

Summary: This paper investigates the correlation between hard X-ray and neutron signals recorded with scintillation detectors in the axial and radial directions, compared with interferometric and extreme-ultraviolet radiation frames. The results show that fusion neutrons are mainly produced by deuterons moving downstream during the disruption of a pinch constriction in the initial phase. In the later phase, fusion neutron emission reaches its maximum in the radial directions, caused by fast deuterons moving in both downstream and radial directions. This emission is usually correlated with the decay of dense plasma structures in the expanding pinch column.

PHYSICS OF PLASMAS (2022)

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Article Physics, Fluids & Plasmas

On the representation of dense plasma focus as a circuit element

S. K. H. Auluck

Summary: The dense plasma focus is a plasma discharge powered by a capacitor bank, with diagnostics involving assumptions and interpretation of current derivative waveforms. The sharp dip in current and spike in voltage have been attributed to rapid changes in plasma inductance or anomalous plasma impedance. However, a first principles approach reveals fundamental problems with traditional representations. Dynamo effects and three-dimensional magnetic fields are shown to play a key role in resolving conceptual difficulties observed in the plasma focus.

PHYSICS OF PLASMAS (2021)

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Review Physics, Fluids & Plasmas

Update on the Scientific Status of the Plasma Focus

Sunil Auluck et al.

Summary: The paper summarizes the developments in the Dense Plasma Focus field over the past 20 years and highlights its main characteristics and unresolved issues, questioning the traditional narrative. The authors suggest that individual laboratories take measures to positively influence the future growth of research.

PLASMA (2021)

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Article Physics, Applied