Descripción
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A two-dimensional, variable-separation model of the plasma dynamics inside a cylin- drical chamber with an axial magnetic eld is derived. The energy absorbed from an helicon-wave ionizes the injected gas and heats the plasma. The magnetic eld is found to provide a good radial connement of the plasma leading to negligible current and power losses to the lateral wall. An eciency study aimed at a thruster application of the device is carried out, in terms of magnetic eld, absorbed power, and injected ow. Losses to the rear-wall are a serious concern in the selected conguration, leading to a fall of internal eciency, i.e. the ratio of plasma-beam power at the chamber exit to absorbed power, to values below a 40% | |
Internacional
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Si |
Entidad
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Electric Rocket Propulsion Society |
Lugar
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31st International Electric Propulsion Conference |
Páginas
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Referencia/URL
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IEPC-2009-193 |
Tipo de publicación
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Technical paper |