Design, fabrication, and operation of dished accelerator grids on a 30-cm ion thruster | Zendy

Vincent K. Rawlin | Zendy; Bruce A. Banks | Zendy; D. C. Byers | Zendy

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Design, fabrication, and operation of dished accelerator grids on a 30-cm ion thruster

Author(s) -

Vincent K. Rawlin,

Bruce A. Banks,

D. C. Byers

Publication year - 1972

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1972-486

Subject(s) - fabrication , ion thruster , ion , materials science , nuclear engineering , aerospace engineering , computer science , physics , propulsion , engineering , medicine , alternative medicine , pathology , quantum mechanics

Several closely-spaced dished accelerator grid systems have been fabricated and tested on a 30-cm diameter mercury bombardment thruster and they appear to be a solution to the stringent requirements imposed by the near-term, high-thrust, low specific impulse electric propulsion missions. The grids were simultaneously hydroformed and then simultaneously stress relieved. The ion extraction capability and discharge chamber performance were studied as the total accelerating voltage, the ratio of net-to-total voltage, grid spacing, and dish direction were varied.

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