Electric propulsion produced environments and possible interactions with the SP-100 power system

An examination of a conceptual SP-100 type power system has been conducted to assess the effect of possible electric thruster induced contamination. The operating characteristics and known exhaust plume properties of various electric thrusters are summarized along with the natural environment and its effects to provide background for the contamination discussion. Charge buildup on nonconducting surfaces, differential charging of surfaces and arcing should be moderated by the operation of an electric thruster system. Thin film deposition of eroded thruster materials is a possible contamination mechanism. Electric thruster field efflux and propellant condensation should have only a minor contaminating effect upon a nuclear power system.