A novel electron gun with an independently addressable cathode array.

Rudys, Joseph Matthew ; Reed, Kim Warren ; Peña, Gary Edward ; Schneider, Larry X.

Sandia National Laboratories

关键词: Electron Tubes.;    Cathodes.;    Cathodes;    Magnetic Fields;    Electron Beams;   

DOI  :  10.2172/892771
RP-ID  :  SAND2006-4988
RP-ID  :  AC04-94AL85000
RP-ID  :  892771

美国|英语

来源: UNT Digital Library

【 摘 要 】

The design of a novel electron gun with an array of independently addressable cathode elements is presented. Issues relating to operation in a 6.5 Tesla axial magnetic field are discussed. Simulations with the TriComp [1] electromagnetic field code that were used to determine the space charge limited tube characteristic and to model focusing of the electron beam in the magnetic field are reviewed. Foil heating and stress calculations are discussed. The results of CYLTRAN [2] simulations yielding the energy spectrum of the electron beam and the current transmitted through the foil window are presented.