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Dynamics of a plasma formed by exploding metal wires and insulator fibres
- Source :
- Quantum Electronics. 24:169-173
- Publication Year :
- 1994
- Publisher :
- IOP Publishing, 1994.
-
Abstract
- High-current nanosecond discharges through metal wires and insulator fibres were investigated in the NIKE-3 (100 kA, 50 ns) and BIN (250 kA, 100 ns) facilities. Glass fibres were used as an example in a study of the dependence of the discharge conditions on the linear density μ of the load. An increase in μ altered the nature of the discharge through the diode from a mismatched regime accompanied by generation of an electron beam (μ 30 μg cm-1). A strong influence of the state of the surface on the nature of an explosion of a metal wire was observed. The experimental results obtained at the beginning of wire explosions were accounted for by a model of the metal—plasma transition. The plasma motion and the development of instabilities of a plasma filament during a discharge were investigated by optical methods. Some of the experiments indicated simultaneous development of helical and 'sausage' instabilities. A two-dimensional ideal magnetohydrodynamic model was employed in calculations dealing with the process of formation of a constriction (pinching) and the results were in good agreement with the observations.
- Subjects :
- Materials science
Statistical and Nonlinear Physics
Insulator (electricity)
Plasma
Nanosecond
Molecular physics
Atomic and Molecular Physics, and Optics
Bin
Electronic, Optical and Magnetic Materials
Protein filament
Cathode ray
Magnetohydrodynamic drive
Electrical and Electronic Engineering
Diode
Subjects
Details
- ISSN :
- 14684799 and 10637818
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- Quantum Electronics
- Accession number :
- edsair.doi...........2d71ea6ce906b8d845aaa808fecf1a75