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The XMGUN was used to design a 30kV, 4.6A and 0.88μPerv axis-symmetric high power electron gun, with grid and shadow grid, working under the space charge limited flow to be used in a TWT. The XMGUN uses the particle path, instead of the motion equation, to perform the macroparticles ray tracing and the FEM approach. It was observed a current increase and a decrease of the normalized transverse velocity...
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