MICROWAVE ELECTRONICALLY VARIABLE ION BEAM TIME DELAY DEVICE STUDY.
Abstract
Continuing studies on sintered, matrix-type ion-emitters are reported. Molybdenum appeared to be the best host material for high emission densities. Short term densities up to 3.8 mA/sq cm were obtained. Ion emission characteristics follow Child-Langmuir and Dushman-Richardson equations. Thermionic work functions were found to be between 2.3-4.6 eV. Surface depletion was found to occur and the replenishment mechanism can be explained by diffusion theory, to first order. Ion extraction from plasmas as a source is being investigated. Further numerical analysis of the gap modulation factor for multiple gaps was made. The coupling bandwidth is found to vary approximately as 2/m when m > 2, where m is the number of gaps. General expressions for gap loading conductance were obtained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0809259
Entities
People
- K. K. Chow
Organizations
- M/A-COM Technology Solutions