A Compact Permanent-Magnet Helicon Thruster
نویسندگان
چکیده
منابع مشابه
Dev Development and Test of a Permanent Magnet Helicon Thruster
Title of Document: DEV DEVELOPMENT AND TEST OF A PERMANENT MAGNET HELICON THRUSTER Michael Frank DeMaio, Jr. M.S. 2010 Directed By: Assistant Professor Raymond Sedwick, Department of Aerospace Engineering This thesis describes the development of a test facility equipped with Langmuir probe and Retarding Potential Analyzer diagnostics for helicon thruster research. A helicon thruster using perma...
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A small helicon source, 5 cm in diameter and 5 cm long, using a permanent magnet (PM) to create the DC magnetic field B, is investigated for its possible use as an ion spacecraft thruster. Such ambipolar thrusters do not require a separate electron source for neutralization. The discharge is placed in the far-field of the annular PM, where B is fairly uniform. The plasma is ejected into a large...
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We describe the development of a Cyclotron Mass Spectrometer (CMS) for the detection of trace amounts of rare isotopes. A compact low energy cyclotron optimized for high mass resolution has been designed and fabricated. The CMS has high sensitivity and is designed to measure 14C at abundances of 10-12. A novel feature of the CMS is the use of permanent magnets to energize the 30 cm diameter iro...
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Helicon discharges are known for their ability to produce high densities of partially ionized plasma, their efficiency arising from an unusual mechanism of RF coupling. However, the requirement of a dc magnetic field has prevented their wide acceptance in industry. The use of permanent magnets greatly simplifies helicon sources, and arrays of small sources extends the use of helicons to the pro...
متن کاملFeasibility study of low power helicon thruster
Abastract Helicon thrusters have been recently considered a possible new electric propulsion system thanks to the acceleration mechanism called “current free double layer “ which allows specific impulse up to 1300 s applying Argon and 4000 s applying hydrogen. Although the primary interest of this technology was always regarding primary propulsion , on this paper is explored the possibility of ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Plasma Science
سال: 2015
ISSN: 0093-3813,1939-9375
DOI: 10.1109/tps.2014.2361476