Investigation of plasma inhomogeneities in a plasma opening switch by laser methods

Author

Dolgachev, G.I. ; Kalinin, Yu.G. ; Kingsep, A.S. ; Nitishinsky, M.S. ; Shashkov, A.Yu.

Author_Institution

Div. of Appl. Phys., Kurchatov (I.V.) Inst. of Atomic Energy, Moscow, Russia

Volume

1

fYear

1998

fDate

6/20/1905 12:00:00 AM

Firstpage

281

Abstract

Investigation of plasma turbulent noises in a plasma opening switch (POS) is presented. A YAG:Nd laser has been used to illuminate a POS plasma, and angular broadening of laser beam was detected. This effect can not be explained neither by regular density gradient, nor by scattering on heat fluctuations of the plasma density. The most probable seems the mechanism of nonlinear laser beam scattering on the turbulent noises. A role of various oscillations (electro-static and helicons) is discussed

Keywords

helicons; measurement by laser beam; plasma diagnostics; plasma switches; plasma turbulence; YAG:Nd laser; angular broadening; electrostatic oscillations; helicons; nonlinear laser beam scattering; plasma inhomogeneities; plasma opening switch; plasma turbulent noise; Fluctuations; Laser beam cutting; Laser beams; Laser noise; Laser theory; Laser transitions; Particle beams; Plasma density; Scattering; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on

Conference_Location

Haifa

Print_ISBN

0-7803-4287-9

Type

conf

DOI

10.1109/BEAMS.1998.822431

Filename

822431