Published May 1975
| Version v1
Journal article
Field electron cathode stability studies: I Zirconium/tungsten thermal-field cathode
Description
The emission angular distribution, total energy distribution, noise spectrum, and emitter life have been measured for the W/Zr thermal-field cathode. The results give an emitter life in excess of 1000 h at T=1350 to 1450 K, Pgreater than or equal to2times10/sup -8/ Torr, and a total current of approx.100 μA. A low-noise highly confined beam long the (100) direction can be obtained. A source brightness of 1010 A/cm2 sr at 3 kV and an energy spread of less than 0.9 eV were measured under operational conditions
Additional details
Identifiers
- DOI
- 10.1063/1.321893;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 46
- Journal Issue
- 5
- Series
- J. Appl. Phys.
- Journal Page Range
- 2029-2050
- ISSN
- 0021-8979
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 6204169
- Subject category
- S36: MATERIALS SCIENCE; S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; CATHODES; ELECTRON EMISSION; ELECTRON SOURCES; ENERGY SPECTRA; FIELD EMISSION; STABILITY; TEMPERATURE NOISE; TUNGSTEN; WORK FUNCTIONS; ZIRCONIUM
- Descriptors DEC
- DISTRIBUTION; ELECTRODES; ELEMENTS; EMISSION; METALS; NOISE; PARTICLE SOURCES; RADIATION SOURCES; SPECTRA; TRANSITION ELEMENTS
Optional Information
- Notes
- Updated automatically by Metadata and Full-Text Enrichment Agent