CPC F03H 1/0025 (2013.01) [B64G 1/405 (2013.01); F03H 1/005 (2013.01)] | 20 Claims |
1. A neutralizer for an ion thruster of a spacecraft, comprising: a cathode for emission of electrons,
a support with an opening inside which the cathode is supported by the support in a radially spaced manner, and
an electrically conductive shielding which surrounds said opening and is electrically insulated from the support,
wherein a ring is mounted between the electrically conductive shielding and the cathode and is electrically insulated from the electrically conductive shielding and radially spaced from the cathode, and
wherein the ring is entirely ceramic.
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