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Charge-exchange collision dynamics and ion engine grid geometry optimization

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Figure 1.1: Schematic of an ion engine. Electrons confined by the magnetic fields collide with andionize xenon atoms (inset A)
Figure 2.1: Primary ion flux through a surface. Primary ions with speed uarea element sweep out a volumepass through an area elementnormal vector is and vector of motion ˆu δA with normal vector ˆn
Figure 2.4: Velocity distribution of CEX ions passing through S(˜x). CEX ions passing through S(˜x)with energies between E and E + δE (or speeds between v and v + δv) and at angles between ψ˜ andψ˜ + d ˜ψ, with respect to the plane normal ˆ˜n, are classified to be of class Eψ ˜.
Figure 3.1: An effusing infinitely-thin hole. The density of neutral atoms at a point Palong the hole normal,coordinate system, is obtainedby integrating the flux of effusing atoms through the hole over the entire hole area, Ah
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Description of an Optimization Problem Single Aperture in an Infinite Grid Neutral Density Downstream of an NSTAR Grid Computing Ion Trajectories Through the Electric Field The Loading Thickness Effects

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