Title :
Research about the behavior of electrons in thermionic field emission microwave guns
Author_Institution :
Inst. of High Energy Phys., Acad. Sinica, Beijing, China
fDate :
4/1/1991 12:00:00 AM
Abstract :
A revision of the variable total particle number of the PARMELA program is presented to fit the characteristics of a thermionic field emission cathode. The longitudinal space-charge spread and transverse space-charge effects are obviously changed. The trajectories, energy spectra, and time structure of the output currents with and without transverse magnetic fields were studied. The backbombarding energies for different magnetic fields are presented
Keywords :
laser accessories; physics computing; space charge; thermionic cathodes; PARMELA program; RF free electron laser injection guns; backbombarding energies; electrons; energy spectra; longitudinal space-charge spread; output current trajectories; physics computing; thermionic field emission cathode; thermionic field emission microwave guns; time structure; transverse magnetic fields; transverse space-charge effects; variable total particle number; Cathodes; Electromagnetic heating; Electron emission; Electron guns; Equations; Free electron lasers; Helium; Magnetic fields; Testing; Thermionic emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
