Plasma boundary layer in the presence of fast primary electrons

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Abstract
The fluid equations are solved for a three‐component plasma in contact with a plane object whose surface is negatively biased or electrically floating. The plasma is assumed to consist of cold ions, fast monoenergetic primary electrons with isotropic velocities, and secondary electrons with a Maxwellian distribution. The rate of ionization is assumed to be proportional to the density of the primary electrons. For a certain range of plasma parameters multiple double layers are formed whose positions are quasiperiodic.