STUDIES OF ELECTRON TUBE MATERIALS AND THERMIONIC EMISSION PROCESSES
Abstract
The emission results obtained to date appear to indicate that the present diode system is very clean and that the available pure nickel is relatively free of impurities. Complementary data on crystal plane orientation in nickel 220 for faces lacking emission reversal were shown in the stereographic triangle with a slight correction for the previously determined plane of maximum emission reversal. A compound unit for measuring cathode temperature in a continuous and automatic way was designed. Temperature cycles of great uniformity and long duration were realized by introducing a linear timer drive which is coupled to the cathode heating supply. By direct display of a 1/8-inch diameter cathode on the 21-inch screen the major phases of the activation process of the impregnated tungsten matrix cathode were demonstrated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 11, 1961
- Accession Number
- AD0265535