NEW SWITCHING CONCEPTS.
Abstract
Activities in the vacuum switch tubes were exclusively in the field of the digital computer analysis of geometries. These analyses incorporated a 0.79 microperv gun rotated about several axes of symmetry in attempts to arrive at a hollow beam or radially expanding beam tubes with the objective of designing a gun geometry with a microperveance of 20 in conjunction with nonintercepting anodes and higher perveance collectors which would exhibit low collector voltage characteristics. Computer data on several generations of hollow beam tubes were generated. The computer plots indicate that the design of a high perveance hollow beam tube with a low-voltage collecting characteristic is feasible. Computations of discharge tube impedance based on electron mobility derived from the Langevin equation were found to disagree with experimental observations. Experimental data indicates the probable existence of anomalous diffusion effects. Experiments performed on a 6-in. diode showed a significant effect on pulsed field requirements due to the use of magnetic biasing at several hundred gauss. Experiments on a folded, bifilar 11-in. tube showed a significant increase in the level of switched power over the 6-in. tube for a given pulsed magnetic field level. Significant effects due to voltage induced by the pulsed magnetic field in the bifilar tube were also observed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 1966
- Accession Number
- AD0486501
Entities
People
- James B. Thomas
Organizations
- EG&G