Precursor phenomenon model for multiwire arrays

Author

Ratakhin, Nicola A. ; Baksht, Rana B.

Author_Institution

Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia

Volume

29

Issue

3

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

512

Lastpage

517

Abstract

Presents a heuristic model that can be used to estimate the dynamics of the wire array implosion. A two-shell precursor model has been developed. Expressions for the maximum precursor current and the precursor kinetic energy have been obtained. It is suggested that the difference in the resistance of the core and the corona of an individual wire is the reason for the precursor appearance. The precursor current increases sharply as the current rise time is lengthened. The most efficient way to suppress the precursor is to reduce the resistance of the core

Keywords

X-ray production; Z pinch; arrays; corona; exploding wires; explosions; pinch effect; plasma flow; plasma theory; plasma transport processes; core; core resistance; corona; current; current rise time; dynamics; heuristic model; kinetic energy; maximum precursor current; multiwire arrays; precursor appearance; precursor current; precursor kinetic energy; precursor phenomenon model; resistance; two-shell precursor model; wire array implosion; Conductivity; Corona; Explosions; Merging; Phased arrays; Plasma accelerators; Plasma density; Plasma temperature; Production; Wire;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.928949

Filename

928949