Modeling and Simulation of the Effect of Cathode Gas Flow on the Lifetime and Performance of an Annular-Geometry Ion Engine
IEEE Transactions on Plasma Science(2019)
Abstract
The past measurements of the plasma density and potential profiles near the exit of the keeper electrode in a hollow cathode device suggested that turbulent ion acoustic fluctuations and ionization instability in the cathode plume significantly increased the energy of the ions that flow from this region. The lifetime of keeper electrode is limited by sputtering or ion bombardment of the Molybdenum...
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Key words
Cathodes,Ions,Electric potential,Plasmas,Magnetic domains,Computational modeling
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