Accession Number:

AD0285194

Title:

TUNNEL CATHODES FOR MICROWAVE TUBES

Descriptive Note:

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

• GEPPERT,D.V.

Report Date:

1962-09-01

Pagination or Media Count:

1.0

Abstract:

Experiments with anodized niobium are described. The results obtained with different metal counter-electrodes are discussed. The barrier shape is computed and evaluated. Vacuum emission experiments with anodized niobium are described. The usefulness of cadmium sulfide for the insulator film is discussed. Experiments with painted and sprayed films are described. Vacuum emission tests with gold--cadmium sulfide--gold cathodes are discussed. The theoretical analysis of hot electrons in metals is briefly discussed. Plans for future work are described. Author

Descriptors:

• *CATHODES (ELECTRON TUBES)
• *COLD CATHODE TUBES
• ATTENUATION
• CADMIUM COMPOUNDS
• EFFECTIVENESS
• ELECTRON TUBES
• ELECTRONS
• LIFE EXPECTANCY
• NIOBIUM COMPOUNDS
• OXIDES
• PULSE MODULATION
• RELIABILITY
• SULFIDES
• THERMIONIC EMISSION
• THIN FILMS (STORAGE DEVICES)

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE