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Angle log-periodic meander line microstrip radial sheet beam traveling-wave tube is one kind of novel minimized vacuum device with low beam voltage. To generate and focus the radial sheet electron beam, a novel radial divergent sheet beam electron optical system, including the tractable radial sheet electron beam gun and miniaturized and feasible radial small tunable periodic cusped magnetic focusing...
The radial tunable periodic cusped magnet (RTPCM) focusing system is designed in this paper. It is shown that a radial divergent sheet beam with 1800V, 84.9mA can be transported smoothly through the drift tunnel with height of 0.36mm and length of 18.8mm focused by this RTPCM system.
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