Electric field distribution of electron emitter surfaces
The electric field distribution of a tungsten field emitter surface and a LaB/sub 6/ thermionic emitter surface has been studied. The computer simulation of electric field distribution on the emitter surface was carried out with a charge simulation method. The electric field distribution of the LaB/sub 6/ thermionic emitter was experimentally evaluated by the Schottky plot. Two independent equations are necessary for obtaining local electric field and work function; the Fowler--Nordheim equation and the equation of total energy distribution of emitted electron being used to evaluate the electric field distribution of the tungsten field emitter. The experimental results agreed with the computer simulation.
- Research Organization:
- Faculty of Engineering, Osaka University, Suita, Osaka 565, Japan
- OSTI ID:
- 6975028
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 50:9; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
BORIDES
BORON COMPOUNDS
COMPUTERIZED SIMULATION
DISTRIBUTION FUNCTIONS
ELECTRIC FIELDS
ELECTRON EMISSION
ELEMENTS
EMISSION
FIELD EMISSION
FUNCTIONS
LANTHANUM BORIDES
LANTHANUM COMPOUNDS
METALS
RARE EARTH COMPOUNDS
SIMULATION
THERMIONIC EMISSION
TRANSITION ELEMENTS
TUNGSTEN