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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...
In this study we report on a development of electron optical systems including electron gun, focus system and depressed collector for sheet beam vacuum electron devices (VED). To support the requirement of the electron-wave interaction, we aim to produce a beam with current density of approximate 200A/cm2 and an aspect ratio of 6:1. A PCM magnet stack is used for the focusing of the beam in the slow...
In this paper, we study the novel sheet electron beam gun by using CST simulation. We can find that the rectangular sheet electron beam gun can easily generate the rectangular sheet electron beam, its electrode shape and cathode focusing electrode angle have obvious influences on the performances of the rectangular sheet electron beam, such as its height and current density. The simulation results...
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