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- W253610212 abstract "This paper contains the description of two concepts for plasma-propulsion engines for application as main thruster units for exploration missions in the solar system. Current space policy increasingly focuses on exploration missions to the earth’s next planets. This includes for instance also manned missions to the Mars. Most efficient for this type of mission would be a propulsion system that provides adjustable continuous thrust over long time-periods. Beyond that, a thrust level as high as possible should be realized due to the reduction of the travel time. The two propulsion concepts (named “Helios-1” and “Helios-2”) presented in this paper are designed to fulfill the thrust requirements mentioned above. Both concepts base on the intention to ionize a gas under high-pressure condition, in order to produce sufficient numbers of charged particles that are able to generate high thrust by coupling of electric and magnetic fields. The ionization proceeds in two stages (pre- and main-ionization). The task of the pre-ionization is to generate the initial conditions to enable ionization of high-pressure gas at all. “Helios-1” is a pure electric propulsion system that uses the principle of a Tesla-transformer to achieve sufficient electric field strength for pre-ionization. “Helios-2” is a hybrid propulsion system consisting of a chemical pre-stage and an electrical main-stage. A Redox-reaction produces electrons that improve the conditions for ionization of high-pressure gas. Additionally, the thrust producing extraction mechanism is described in the paper. The intention to extract large numbers of charged particles requires a design of the thrusters as plasma-propulsion engines. The extraction of plasma instead of ions prevents the formation of space charges that limit the extractable current of thrust producing charged particles." @default.
- W253610212 created "2016-06-24" @default.
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- W253610212 date "2014-08-01" @default.
- W253610212 modified "2023-09-26" @default.
- W253610212 title "Two Concepts of High-Thrust Plasma-Propulsion Engines for Use as Main-Thruster Units for Interplanetary Exploration" @default.
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