Visual Evidence of Magnetic Shielding With the PPS-Flex Hall Thruster

Visual Evidence of Magnetic Shielding With the PPS-Flex Hall Thruster

Magnetic shielding (MS) of insulating walls in a Hall thruster (HT) drastically reduces the damaging ion bombardment, therefore significantly increasing the thruster operational lifetime, as demonstrated in recent work. In essence MS rests on preventing the field line from intersecting the wall in t...

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Bibliographic Details
Published in:IEEE transactions on plasma science Vol. 42; no. 10; pp. 2668 - 2669
Main Authors: Mazouffre, Stéphane, Vaudolon, Julien, Largeau, Guillaume, Hénaux, Carole, Rossi, Alberto, Harribey, Dominique
Format: Journal Article
Language:English
Published: IEEE 01-10-2014
Subjects:
Coils
Ion accelerators
Magnetic circuits
Magnetic noise
Magnetic separation
Magnetic shielding
Plasmas
propulsion
Topology
propulsion
Ion accelerators
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Summary:Magnetic shielding (MS) of insulating walls in a Hall thruster (HT) drastically reduces the damaging ion bombardment, therefore significantly increasing the thruster operational lifetime, as demonstrated in recent work. In essence MS rests on preventing the field line from intersecting the wall in the discharge chamber downstream section. We show here that such a topology can be attained with the newly developed PPS-flex HT. The latter is a unique prototype that offers a wide range of magnetic configurations through a combination of 22 coils with a sophisticated magnetic circuit that propagates the flux.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2014.2331180