NDLI: Five-centimeter diameter ion thruster development

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Five-centimeter diameter ion thruster development

Content Provider	NASA Technical Reports Server (NTRS)
Author	Weigand, A. J.
Copyright Year	1972
Description	All system components were tested for endurance and steady state and cyclic operation. The following results were obtained: acceleration system (electrostatic type), 3100 hours continuous running; acceleration system (translation type), 2026 hours continuous running; cathode-isolator-vaporizer assembly, 5000 hours continuous operation and 190 restart cycles with 1750 hours operation; mercury expulsion system, 5000 hours continuous running; and neutralizer, 5100 hours continuous operation. The results of component optimization studies such as neutralizer position, neutralizer keeper hole, and screen grid geometry are included. Extensive mapping of the magnet field within and immediately outside the thruster are shown. A technique of electroplating the molybdenum accelerator grid with copper to study erosion patterns is described. Results of tests being conducted to more fully understand the operation of the hollow cathode are also given. This type of 5-cm thruster will be space tested on the Communication Technology Satellite in 1975.
File Size	3562284
Page Count	29
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720020175
Archival Resource Key	ark:/13960/t8qc4sf7j
Language	English
Publisher Date	1972-07-01
Access Restriction	Open
Subject Keyword	Propulsion Systems Performance Tests Electric Rocket Engines Plasma Accelerators Systems Engineering Mercury Vapor Environmental Tests Ion Engines Molybdenum Erosion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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