Experimental indication of a buffer zone between the plasma armature of an EML and the projectile [EM launchers]

Author

Clothiaux, Engene J. ; Villecco, Roger A. ; Cobb, Kenneth K.

Author_Institution

Dept. of Phys., Auburn Univ., AL, USA

Volume

27

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

294

Lastpage

298

Abstract

The time-resolved light emission observed at 4000 Å with a phototube at a fixed location along the bore indicates that a warm, weakly ionized region may exist between the rear of the projectile and the armature. This observation supports the fact that the rear of the projectile shows very little ablation. An attempt is made to observe this buffer region using a combined fiber-optic probe and a conductivity probe located at the same bore position. The speed of the armature is obtained from interconnected B-probes and the theory and use of this diagnostic is discussed

Keywords

electromagnetic launchers; fibre optic sensors; plasma devices; plasma diagnostic techniques; plasma probes; 4000 Å; EM launchers; ablation; buffer zone; combined fiber-optic probe; conductivity probe; diagnostic; interconnected B-probes; phototube; plasma armature; projectile; time-resolved light emission; weakly ionized region; Boring; Conductivity; Face detection; Optical buffering; Plasma accelerators; Plasma diagnostics; Plasma measurements; Plasma temperature; Probes; Projectiles;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.101043

Filename

101043