Electron Energy Distribution Produced by Beam-Plasma Discharge
As an initially monoenergetic electron beam moves through a partially ionized gas with kT ≪ E beam, the beam electrons are scattered in energy and angle, the thermal electrons are similarly scattered, and new secondary electrons are created by ionization. In case only collisional scattering occurs, the energy of beam particles is lowered and a secondary distribution is built up, increasing along the beam path, and varying as ~ E-3 according to various calculations. Applications to auroral studies are familiar (Vallance-Jones, 1974).
KeywordsPitch Angle Injection Energy Electron Intensity Large Angle Scattering Beam Plasma Discharge
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