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Anirudh Thuppul, Peter L. Wright, Adam L. Collins, John K. Ziemer and Richard E. Wirz
Ionic liquid electrospray thrusters are capable of producing microNewton precision thrust at a high thrust?power ratio but have yet to demonstrate lifetimes that are suitable for most missions. Accumulation of propellant on the extractor and accelerator ...
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Jared M. Magnusson, Adam L. Collins and Richard E. Wirz
To better characterize the lifetime and performance of electrospray thrusters, electron emission due to electrode impingement by the propellant cation 1-ethyl-3-methylimidazolium (EMI+) has been evaluated with semi-empirical modeling techniques. Results ...
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Nolan M. Uchizono, Adam L. Collins, Anirudh Thuppul, Peter L. Wright, Daniel Q. Eckhardt, John Ziemer and Richard E. Wirz
Electrospray thruster life and mission performance are strongly influenced by grid impingement, the extent of which can be correlated with emission modes that occur at steady-state extraction voltages, and thruster command transients. Most notably, we ex...
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Adam S. Lubell, Evan C. Bentz, and Michael P. Collins
Pág. 78 - 87
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