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THP087 Simulation of Cathode Back-bombardment in a 100 MHz Thermionic RF Gun cathode, gun, electron, simulation 944
 
  • M. Borland, X.W. Dong
    ANL, Argonne
 
 

A 100 MHz thermionic rf gun is under consideration as the electron source for the X-ray Free Electron Laser Oscillator*. Because the source must operate continuously, back-bombardment of the cathode is a serious concern. We present results of simulations of back-bombardment, as well as strategies for reducing the back-bombardment power on the cathode.


*K. J. Kim et al., Phys. Rev. Lett. 100, 244802 (2008)