STUDIES OF PRIMARY ELECTRON SOURCES.
Abstract
Experimental results and a theoretical analysis demonstrate that, under heavy long-pulse current drain, oxide cathodes activate as a consequence of thermal processes in the absence of anode effects which produce the more normally observed emission decays. The velocity distribution of pulsed emission from a cathode is presented. Studies of the optical and electrical properties of oxide and sulfide cathodes under various activation and deactivation operations are summarized. The operation of superconducting field emitters, and of thin film superconductors, under hot-electron-emission conditions is discussed. Highvacuum-arc formation with a liquid Ge pool cathode is described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1963
- Accession Number
- AD0424378
Entities
People
- D. E. Anderson
Organizations
- University of Minnesota