Permanent Magnet Helicon Source for Ion Propulsion
نویسندگان
چکیده
منابع مشابه
Helicon Source for Ion Propulsion
Electric thrusters are usually in one of two forms: gridded ion thrusters or Hall thrusters. Each of these accelerates ions and requires an injector of electrons to neutralize the ion beam. Ambipolar thrusters eject neutralized plasmas with equal numbers of ions and electrons. Helicon thrusters are a new type being developed which utilize both the high ionization efficiency of magnetized helico...
متن کاملIon ejection from a permanent-magnet mini-helicon thruster
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...
متن کاملPerformance of a permanent-magnet helicon source at 27 and 13 MHz
A small helicon source is used to create dense plasma and inject it into a large chamber. A permanent magnet is used for the dc magnetic field (B-field), making the system very simple and compact. Though theory predicts that better antenna coupling will occur at 27.12 MHz, it was found that 13.56 MHz surprisingly gives even higher density due to practical effects not included in theory. Complet...
متن کاملDev 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...
متن کاملDevelopment of a Permanent-magnet Microwave Ion Source for a Sealed-tube Neutron Generator
A microwave ion source has been designed and constructed for use with a sealed-tube, high-yield neutron generator. When operated with a tritium-deuterium gas mixture the generator will be capable of producing 5 · 10 n/s in non-proliferation applications. Microwave ion sources are well suited for such a device because they can produce high extracted beam currents with a high atomic fraction at l...
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ژورنال
عنوان ژورنال: IEEE Transactions on Plasma Science
سال: 2008
ISSN: 0093-3813,1939-9375
DOI: 10.1109/tps.2008.2004039