Title :
Fast H-alpha line broadening during the 100 ns REB injection into a plasma
Author :
K. Koláček;M. Rípa;J. Ullschmied;K. Jungwirth;P. Šunka
Author_Institution :
Institute of Plasma Physics, Czechoslovak Academy of Sciences, Za Slovankou 3, P.O. Box 17, 182 11 Prague 8, Czechoslovakia
fDate :
5/1/1992 12:00:00 AM
Abstract :
Profiles of the Ha line emitted from the hot electron plasma Te ≫ Ti during the 100 ns REB injection resemble the Gaussian ones from neutrals with a temperature Tn(t)≈ Ti(t) ≈ Te(t) rapidly growing up to 3 0 eV. Combination of Doppler and Stark effects of the intense ion sound waves - remnants of the burned out Langmuir cavitons - is suggested for plausible explanation of this fast Ha line broadening. Reliability of the basic ideas of strong Langmuir turbulence for description of REB-plasma systems is thus indirectly supported, too.
Keywords :
"Stark effect","Plasmas","Doppler effect","Particle beams","Particle beam injection","Acoustic beams","Hafnium"
Conference_Titel :
High-Power Particle Beams, 1992 9th International Conference on
