Characterization Of A Space Charge Limited Non Relativistic Electron Beam Diode Operating At 300 KV/cm

2005 ◽  
Author(s):  
J.M. Elizondo ◽  
W.M. Moeny ◽  
A.E. Rodriguez
Keyword(s):  
Electron Beam ◽  
Space Charge ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Space Charge Limited

Influence of ion density on electron-beam propagation from a gas-filled diode

1999 ◽  
Vol 61 (1) ◽  
pp. 31-41 ◽  
Author(s):  
HAN S. UHM ◽  
E. H. CHOI ◽  
J. J. KO ◽  
H. M. SHIN ◽  
G. S. CHO
Keyword(s):  
Electron Beam ◽  
Theoretical Model ◽  
Ion Channel ◽  
Space Charge ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Space Charge Limited Current ◽  
Ion Density ◽  
Limited Current ◽  
Space Charge Limited

Electron-beam propagation from a gas-filled diode is investigated. The beginning portion of the electron beam pulse creates an ion channel not only inside the diode but also in the region beyond the anode. A theoretical model is developed for the space-charge-limited current of a relativistic electron beam propagating through an ion channel. A simple analytical expression for the space-charge-limited current is obtained within the context of a thin-beam approximation, where the conducting-tube radius is much larger than the beam radius. The beam current propagating through an ion channel is measured experimentally for a mildly relativistic electron beam. Whenever the ion density inside the diode is the same as the beam electron density, the diode is short-circuited. The ion-channel density at the short-circuiting time is calculated numerically and is used to estimate the space-charge-limited current. It is shown that the experimental data agree well with the analytical results predicted by the theoretical model.

Nonlinear space-charge waves on an intense relativistic electron beam

1988 ◽  
Vol 16 (2) ◽  
pp. 249-257 ◽  
Author(s):  
Y.Y. Lau ◽  
J. Krall ◽  
M. Friedman ◽  
V. Serlin
Keyword(s):  
Electron Beam ◽  
Space Charge ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Space Charge Waves
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