Abstract
The first laser-induced fluorescence measurements of ion acoustic wave reflection are presented. The experiment is performed in a multi-pole cylindrical chamber using a singly ionized argon (ArII) plasma produced by means of a hot cathode. Ion-acoustic waves are launched from a mesh antenna and reflected/absorbed by a biased, solid boundary (electrode). A comparison between the Langmuir probe and laser-induced fluorescence diagnostics is presented, with complementary Electric-field probe measurements.
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