An electron optical system for sheet beam vacuum electron devices
An electron optical system for sheet beam vacuum electron devices
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发表时间：
2011-04
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通讯作者：
J. Lai;Y. Gong;Yanyu Wei;Xiong Xu;Wenxiang Wang
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作者：
J. Lai;Y. Gong;Yanyu Wei;Xiong Xu;Wenxiang Wang
在这项研究中，我们报告了用于片束真空电子器件（VED）的电子光学系统的开发，包括电子枪、聚焦系统和凹陷收集器。为了支持电子波相互作用的要求，我们的目标是产生电流密度约为 200A/cm2、纵横比为 6:1 的电子束。 PCM 磁体堆栈用于慢波结构中光束的聚焦。提出了一种专用于板梁装置的多级凹陷集热器，相对于传统集热器，其有望获得更高的集热效率和更好的热分布。
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 wave structure. A multistage depressed collector dedicated to sheet beam device is proposed, which is expected to aim a higher collector efficiency and better thermal distribution relative to conventional ones.