Title :
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
fDate :
6/20/1905 12:00:00 AM
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;
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
DOI :
10.1109/BEAMS.1998.822431
