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An 20 kV, 210 mA electron gun for a sheet beam traveling wave tube have been designed. BFE and anode dimensions are optimized using CST code to converge the beam coming from planar cathode of rectangular size 1.2 mm×1 mm. The beam waist is formed at 11.2 mm from the cathode with the beam size of 1.1 mm× 0.22 mm. Novel PPM focusing system is designed for stable transport of the beam. In this case no...
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