Journal article Open Access

Space charge neutralization in inertial electrostatic confinement plasmas

Evstatiev, E. G.; Nebel, R. A.; Chacón, L.; Park, J.; Lapenta, G.

A major issue for electron injected inertial electrostatic confinement (IEC) devices is space charge neutralization. A new formalism is developed that will allow this neutralization to occur for both oscillating and steady-state IEC plasmas. Results indicate that there are limits on the amount of compression that can be achieved by oscillating plasmas while simultaneously maintaining space charge neutralization and parabolic background potential. For steady-state plasmas, there are no such limits and space charge neutralization can be achieved even when the plasma becomes quasineutral.
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