STUDIES OF PRIMARY ELECTRON SOURCES
Abstract
Results from a controlled chemical activation tube are presented which lend support to the postulate that the thermionic emission from oxide cathodes is proportional to the Sr evolution rate to the one-half power. An oxide coating adherence problem has been encountered which will temporarily suspend radioactive tracer work until a new radioactive nitrate is obtained. A new technique for measuring emission from oxide cathodes during long-pulse and dc conditions is described. Further data on the photoelectric yield and pulse emission of a BaO cathode, obtained by converting BaCO3, are presented. The effects of poisoning this cathode by exposure to a dirty anode and subsequent recovery is illustrated. Photoelectric yield and pulse emission measurements from a thin film BaO coating indicate a relationship between these measurements. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1962
- Accession Number
- AD0282939
Entities
People
- D.e. Anderson
Organizations
- Air Force Cambridge Research Laboratories