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A hollow cathode hydrogen ion sourceHigh current density ion sources have been used to heat plasmas in controlled thermonuclear reaction experiments. High beam currents imply relatively high emission currents from cathodes which have generally taken the form of tungsten filaments. A hydrogen ion source is described which was primarily developed to assess the emission current capability and design requirements for hollow cathodes for application in neutral injection devices. The hydrogen source produced ions by electron bombardment via a single hollow cathode. Source design followed mercury ion thruster technology, using a weak magnetic field to enhance ionization efficiency.
Document ID
19770027055
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sovey, J. S.
(NASA Lewis Research Center Cleveland, OH, United States)
Mirtich, M. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1977
Subject Category
Plasma Physics
Report/Patent Number
E-9345
NASA-TM-73783
Report Number: E-9345
Report Number: NASA-TM-73783
Meeting Information
Meeting: Symp. on Eng. Probl. of Fusion Res.
Location: Knoxville, TN
Country: United States
Start Date: October 25, 1972
End Date: October 28, 1972
Sponsors: IEEE, Inc.
Accession Number
77N33999
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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