Thermionic sources for HI-brightness electron beams

Conference · Thu Jun 01 00:00:00 EDT 1989 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:6900370

Thomas, R E ^[1]

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1. U.S. Naval Research Laboratory, Washington, DC 20375 (USA)

This paper surveys the capabilities and limitations of modern thermionic electron sources for producing high emission density ({gt}10 A/cm{sup 2})-high brightness beams. The emphasis is on dispenser cathodes. The capabilities of existing commercial cathodes as well as the potential for future cathode improvements as demonstrated in various prototype structures are described.

• OSTI ID: 6900370
• Report Number(s): CONF-881154--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (USA), Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Vol. 188:1; ISSN 0094-243X; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
BEAM OPTICS
BEAMS
BRIGHTNESS
CATHODES
CONTROL
CURRENT DENSITY
DEPOSITION
ELECTRODES
ELECTRON BEAMS
ELECTRON SOURCES
ELEMENTS
EMISSION
IRIDIUM
LEPTON BEAMS
METALS
OPTICAL PROPERTIES
PARTICLE BEAMS
PARTICLE SOURCES
PHYSICAL PROPERTIES
PLATINUM METALS
PRESSURE CONTROL
RADIATION SOURCES
SURFACE COATING
THERMIONIC EMISSION
TRANSITION ELEMENTS
TUNGSTEN
VERY HIGH TEMPERATURE