STUDIES OF ELECTRON TUBE MATERIALS AND THERMIONIC EMISSION PROCESSES
Abstract
A continuously heated tantalum wire produces a vacuum ambient approximately one order of magnitude lower than barium flash getters in the special diodes used for the study of pure nickelbased oxide cathodes. Efforts to activate cathodes having pure nickel bases by means of electrolytic methods were aided by shot noise monitoring techniques. The application of a new analytical technique to the analysis of nickel samples was started. Operation of the completed mass spectrometer-Knudsen cell instrumentation was also started. Work was continued to determine the causes of lack of performance and to establish the sensitivity of silver. Investigations were conducted toward confirmation and generalization of the theory to cover the phenomena on ultra-pure nickel. Identification of crystal sites showing emission reversal by using X-ray diffraction techniques is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1961
- Accession Number
- AD0262250