Novel Electron Beam Cathode
Abstract
Experiments have been conducted during the past year to develop an electron beam cathode which is capable of producing a moderate perveance beam for several microsecond pulse lengths and is not susceptible to diode closure. The requirements, successfully met by this salt-based cold emission cathode, include operating in modest vacuums of 10-5 Torr, voltages less than or equal 160 kV, and the ability to generate solid or annular cross section space-charge- limited electron beams. Data on the operating performance of this salt cathode and streak photographs showing the uniformity of the emission of the electron beam are presented. Comparisons of this salt cathode will be made with other electron beam cathode materials.... Cathode, Electron beam, Diode, Perveance, Diode collapse, Cesium iodide
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1993
- Accession Number
- ADA270106
Entities
People
- D. E. Voss
- E. G Arate
- K. J. Hendricks
- R. Mcwilliams
- T. A. Spencer