Title :
Pulsed intense electron beams produced in high voltage hollow cathode discharges: a comparative study
Author :
Dewald, E. ; Frank, K. ; Hoffmann, D.H.H. ; Tauschwitz, A.
Author_Institution :
GSI Darmstadt, Germany
Abstract :
Intense pulsed electron beams with remarkable parameters are generated in high voltage (5-30 kV) transient hollow cathode discharges (THCD). The most efficient THCD configurations for generating such electron beams are the pseudospark, the channel spark and preionization-controlled open-ended hollow-cathode (PCOHC) configurations. The beam parameters such as current, pulse length, and electron energy are measured for all three configurations using the same diagnostics. The dependence of the beam parameters on the discharge geometry, voltage, external capacitance and gas pressure is compared in all three configurations.
Keywords :
electron beams; electron sources; glow discharges; particle beam diagnostics; sparks; 5 to 30 kV; capacitance; channel spark; current; electron beam energy; gas pressure; preionization-controlled open-ended hollow-cathode; pseudospark; pulse length; pulsed electron beams; transient hollow cathode discharge; Cathodes; Current measurement; Electron beams; Energy measurement; Geometry; Length measurement; Pulse generation; Pulse measurements; Sparks; Voltage;
Conference_Titel :
Pulsed Power Plasma Science, 2001. PPPS-2001. Digest of Technical Papers
Conference_Location :
Las Vegas, NV, USA
Print_ISBN :
0-7803-7120-8
DOI :
10.1109/PPPS.2001.1001804
