Experimental observation of ion-acoustic double layers in laboratory plasma

Details Experimental observation of ion-acoustic double layers in laboratory plasma Experimental observation of ion-acoustic double layers in laboratory plasma

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2469..105s&link_type=abstract

In NASA. Marshall Space Flight Center Double Layers in Astrophysics p 105 (SEE N87-23313 16-88)

Astronomy and Astrophysics

Astrophysics

Computerized Simulation, Electric Fields, Electrostatics, Ion Acoustic Waves, Plasma Layers, Space Plasmas, Beam Injection, Electron Beams, Nonlinearity, Plasma Potentials

Scientific paper

Experimental results on the observation of ion-acoustic double layers in laboratory plasma are presented. In a double-plasma device, modified suitably to inject an electron beam into the target plasma, modulation of the beam through a step potential leads to excitation of ion-acoustic fluctuations. The fluctuations, growing away from the separating grids, develop into weak asymmetric ion-acoustic double layers. The observations are compared with the scenario emerging out of the computer simulations and analytical results on ion-acoustic double layers.

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