PULSED ACCELERATOR UTILIZING DRY PULSE FORMING LINE FOR GENERATION OF INTENSE ELECTRON BEAMS

摘要

Intense Relativistic Electron Beams characterization and their interaction with matter have constantly remained in the area of interest for researchers because of their immense applications in various fields of science. Power of Electron Beams generated for such studies is very much dependent and proportional to power of the pulsed accelerator used for their generation. Pulsed accelerators operating for very short durations and working with appreciable efficiency in generation of such powerful electron beams were reported time to time by various people.rnIn this paper we are presenting a scheme of such pulsed Accelerator which is made of the solid dielectric pulse forming line requiring no maintenance or conditioning of dielectric unlike in the water or oil based pulsed forming lines. Impedance matching of this fast capacitor i.e. pulsed forming line with the field emission diode is also done in specific way in which similar segments are used in parallel. The overall scheme is discharging a capacitor in the primary of designed tesla transformer which charges another designed fast capacitor i.e. pulsed-forming-line, delivering its energy in very short duration to field emission diode and resulting in EEE (explosive emission of electrons). The accelerator is designed for a peak operation at 500kV, ～160ns and 12.5 ohm generator impedance matched with load. The full design scheme and modelling results are reported in this paper. The experimental results of this 12.5 ohm system at 200kV, 165ns and resulting electron beam of ～8kA and its impressions recorded on various films is also reported here in this paper. Characterization of the beam generated under such scheme is done and reported.