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Electron cyclotron resonance microwave plasma neutralizer for ion thruster systems

Summary form only given. We report the application of the Getty, large area, ECR-plasma source, as an electron source for the neutralization of ion thruster beams. This plasma source consists of a large waveguide horn in which the microwave output end is covered with cross-polarized rows of permanen...

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Main Authors:	Hidaka, Y., Gilgenbach, R.M., Jones, M.C., Lau, Y.Y., Getty, W.D.
Format:	Conference Proceeding
Language:	English
Subjects:	Cyclotrons Electron sources Frequency Ion beams Magnetic field measurement Plasma applications Plasma measurements Plasma sources Plasma waves Resonance
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creator	Hidaka, Y. Gilgenbach, R.M. Jones, M.C. Lau, Y.Y. Getty, W.D.
description	Summary form only given. We report the application of the Getty, large area, ECR-plasma source, as an electron source for the neutralization of ion thruster beams. This plasma source consists of a large waveguide horn in which the microwave output end is covered with cross-polarized rows of permanent magnets separated by slots. The large-area plasma is formed in the electron-cyclotron-resonant magnetic fields outside the magnet-bar slots. Typical microwave parameters are: frequency of 2.45 GHz, and power levels of hundreds of W. Electron densities have been measured to be overdense, at values up to 6 E11/cc at this frequency. Scaling studies are underway to raise the frequency to 6 GHz for a potential 6-fold increase in the electron density.
doi_str_mv	10.1109/PLASMA.2004.1339869
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language	eng
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source	IEEE Xplore All Conference Series
subjects	Cyclotrons Electron sources Frequency Ion beams Magnetic field measurement Plasma applications Plasma measurements Plasma sources Plasma waves Resonance
title	Electron cyclotron resonance microwave plasma neutralizer for ion thruster systems
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