Lanthanum hexaboride (LaB6) resistivity measurement

Lanthanum hexaboride (LaB6) resistivity measurement

In the development of high-power free-electron lasers, intense electron beams are required. Large area, directly heated lanthanum hexaboride cathodes have been proposed as the electron emitter. To aid in the design of the cathode, the resistivity of lanthanum hexaboride as a function of material den...

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Veröffentlicht in:Appl. Phys. Lett.; (United States) 1987-06, Vol.50 (25), p.1844-1845
Hauptverfasser: Williams, M. D., Jackson, L. T., Kippenhan, D. O., Leung, K. N., West, M. K., Crawford, C. K.
Format: Artikel
Sprache:eng
Schlagworte:
360204 - Ceramics, Cermets, & Refractories- Physical Properties
BEAMS
BORIDES
BORON COMPOUNDS
CATHODES
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRODES
ELECTRON BEAMS
ELECTRON EMISSION
ELECTRON SOURCES
EMISSION
FREE ELECTRON LASERS
LANTHANUM BORIDES
LANTHANUM COMPOUNDS
LASERS
LEPTON BEAMS
MATERIALS SCIENCE
PARTICLE BEAMS
PARTICLE SOURCES
PHYSICAL PROPERTIES
RADIATION SOURCES
RARE EARTH COMPOUNDS
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Beschreibung
Zusammenfassung:In the development of high-power free-electron lasers, intense electron beams are required. Large area, directly heated lanthanum hexaboride cathodes have been proposed as the electron emitter. To aid in the design of the cathode, the resistivity of lanthanum hexaboride as a function of material density and temperature has been measured.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.97715