Compact THz Extended Interaction Oscillator Driven by a Pseudospark-sourced beam

The pseudospark discharge generated electron beam has the advantage of high current density and no need for an external guiding magnetic field. A sheet electron beam can be generated using a collimator with a sub-millimeter aperture. Simulation results showed that an extended interaction oscillator operating at 0.35 THz could achieve an output power of 1.8 kW. Simulations have been used to confirm that a $\pm 5\ \mu\mathrm{m}$ tolerance will result in an acceptable performance.