Thrust imparted by a stepped-diameter magnetic nozzle rf plasma thruster
نویسندگان
چکیده
منابع مشابه
Direct Measurement of Axial Momentum Imparted by an Electrothermal Radiofrequency Plasma Micro-Thruster
Gas flow heating using radio frequency plasmas offers the possibility of depositing power in the center of the flow rather than on the outside, as is the case with electro-thermal systems where thermal wall losses lower efficiency. Improved systems for space propulsion are one possible application and we have tested a prototype micro-thruster on a thrust balance in vacuum. For these initial tes...
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متن کاملMHD scenario of plasma detachment in a magnetic nozzle
Abstract Some plasma propulsion concepts rely on a strong magnetic field to guide the plasma flow through the thruster nozzle. The question then arises of how the magnetically confined plasma can detach from the spacecraft. This work presents an MHD detachment scenario in which the plasma flow stretches the magnetic field lines to infinity. Detachment takes place after the energy density of the...
متن کاملDirect thrust measurements and modelling of a radio-frequency expanding plasma thruster
It is shown analytically that the thrust from a simple plasma thruster (in the absence of a magnetic field) is given by the maximum upstream electron pressure, even if the plasma diverges downstream. Direct thrust measurements of a thruster are then performed using a pendulum thrust balance and a laser displacement sensor. A maximum thrust of about 2 mN is obtained at 700 W for a thruster lengt...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2018
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.5041034