CONTROLLING CHARGED-PARTICLE FLUXES IN THE EROSIVE LASER PLASMA OF A GRAPHITE TARGET IN VACUUM

Parameters of the erosive laser plasma of a graphite target on exposure to Nd³+:YAG-laser pulses with a wavelength λ = 1064 nm and a pulse duration τ ~ 20 ns have been investigated. Two zones of glow have been found. One zone is quiescent and is located at the target surface at the site of exposure to laser radiation. The other glow zone moves opposite to a laser beam with a velocity of ~10 km/s. A method to control charged-particle fl uxes in the erosive laser torch has been proposed.
   
Author:  V. K. Goncharov, M. V. Puzyrev, and V. Yu. Stupakevich
Keywords:  erosive laser plasma, graphite target, electric double layer.
Page:  1056