Anode for ion thruster

Details Anode for ion thruster Anode for ion thruster

1976-03-08

1977-03-15

Freeh, William L.

Power plants

Reaction motor

Ion motor

313230, 3132313, 313360, 3151113, 3151116, F02K 900

Patent

active

040117197

ABSTRACT:
The invention is directed to a screen anode for an ion thruster. The anode is constructed of a woven mesh screen, preferably of a stainless steel wire cloth with a mesh size less than the intergrid gap or openings of the screen grid or accelerator grid systems of the ion thruster. The screen anode is sputter coated with tantalum as a result of thruster operation. Because of the fineness of the screen anode any spalled material from the tantalum coated anode is in such small dimensions that the spalled pieces cannot interfere with the accelerator and screen grid systems and with the focusing therebetween.

REFERENCES:
patent: 3156090 (1964-11-01), Kaufman
patent: 3500122 (1970-03-01), Sohl
patent: 3969646 (1976-07-01), Reader et al.

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