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Compact electron-beam source for formation of neutral beams of very low vapor pressure materialsIn order to form metal vapors for neutral beam studies, an electron-beam heater and a power supply have been designed. The source, which measures about 30 x 50 x 70 mm, consists of a filament, accelerating plate (defined by pole pieces), and a supported target. The electrons from the filament are focused by the field penetration through a 2 mm slit in the high-voltage cage. They are then accelerated to about 5 kV to a ground plate. The electrons then follow a path in the magnetic field and strike the sample to be heated on its front surface. The assembly is attached to a water-cooled base plate. The electron beam source has produced beams of Ta and C particles with densities of about 10 to the 8th power/cu cm.
Document ID
19780057555
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rutherford, J. A.
(IRT Corp. San Diego, CA, United States)
Vroom, D. A.
(IRT Corp. San Diego, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Publication Information
Publication: Review of Scientific Instruments
Volume: 49
Subject Category
Instrumentation And Photography
Accession Number
78A41464
Funding Number(s)
CONTRACT_GRANT: NAS3-17759
Distribution Limits
Public
Copyright
Other

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