Generation and application of pseudospark-sourced electron beams

Cross, A.W. and Yin, H. and He, W. and Ronald, K. and Phelps, A.D.R. and Pitchford, L.C. (2007) Generation and application of pseudospark-sourced electron beams. Journal of Physics D: Applied Physics, 40 (7). pp. 1953-1956. ISSN 0022-3727 (

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A pseudospark (PS) discharge has been shown to be a promising source of high brightness, high intensity electron beam pulses. A PS-sourced electron beam has two phases, an initial hollow cathode phase (HCP) beam followed by a conductive phase (CP) beam. In our experiments, a 22 kV, 50A HCP beam of brightness 10(9-10) A m(-2) rad(-2) followed by a 200 V, 200 A CP beam of brightness 10(11-12) A m(-2) rad(-2) were measured. Experiments have been conducted with the application of a HCP beam in a Cherenkov interaction with no input seed wave and with post-acceleration of the CP beam. In this paper, a new Cherenkov interaction experiment with an input seed wave from a 20 kW, 35 GHz pulsed magnetron has been designed using the same PS HCP beam. Simulation results of the interaction will be presented and further PS electron beam applications will be discussed.


Cross, A.W. ORCID logoORCID:, Yin, H. ORCID logoORCID:, He, W. ORCID logoORCID:, Ronald, K. ORCID logoORCID:, Phelps, A.D.R. ORCID logoORCID: and Pitchford, L.C.;