Advanced post-acceleration methodology for pseudospark-sourced electron beam

Abstract

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A tapered multi-gap multi-aperture pseudospark-sourced electron gun based X-band slow wave oscillator

“…[4][5][6] The PS based electron beam does not require any applied magnetic field due to the presence of plasma inside the slow wave structure (SWS) during its propagation. [7][8] Moreover, the presence of plasma inside the SWS shifts the beam space charge fields near to the microwave fields. 2 However, to enhance the coupling coefficient between beam space charge and RF fields, the fill factor and current density 9 , as well as the energy of the PS based electron beam should be high enough, which critically depends on the geometrical parameters.…”

Study of millimetre wave extended interaction oscillation using pseudospark-sourced E-beams

“…Recently a single-gap PS-sourced electron beam was also studied using a novel methodology of an integrated post acceleration section to achieve high current density and low energy spread beam [17][18]. Fig.1 shows the PS-beam after post-acceleration and Fig.2 is the beam image.…”

Investigation of millimeter wave extended interaction oscillation using improved pseudospark-sourced electron beams

“…To achieve better beam quality, the PS-sourced electron beam is also investigated with post-acceleration to reduce its beam energy spread [8][9][10]. To achieve higher output power, a sheet beam EIO structure is further studied with a PS-sourced sheet beam [11].…”