A theoretical thrust density limit for Hall thrusters

Abstract Hall Thrusters typically operate at thrust densities on the order of 10 N/m $$^2$$ 2 , which appear to be orders magnitude below density limits suggested in previous literature. These have been considered here and each component is analyzed demonstrate relative contribution total density. Dependencies upon thruster geometry, electron mobility, applied magnetic field are revealed compared with experimental measurements This analysis reveals that conventional strengths, appears 1000 . It shown this limit can further increased through higher fields, voltage, suppression anomalous transport. suggests thrusters made much more compact operated power densities, given improvements thermal management materials.