Vacuum electronics at the dawn of the twenty-first century
Vacuum electronics at the dawn of the twenty-first century
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DOI：
10.1109/5.757251
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发表时间：
1999-05-01
影响因子：
20.6
通讯作者：
Armstrong, CM
中科院分区：
文献类型：
--
作者：
Granatstein, VL;Parker, RK;Armstrong, CM
在这篇真空电子学专刊的介绍中，回顾了真空电子器件的历史、工作原理和最近的技术发展趋势。本文介绍了微波功率管的发展，并着重介绍了在过去的四分之一个世纪中这些器件的改进。这些改进是实质性的，并受到现代高功率应用以及材料和计算科学进步的推动。本文的第二部分描述了一类新的真空电子发生器的出现，涉及相对论电子束和与快波的相互作用（例如，回旋管、自由电子激光器）。这些新型发生器正在打开微波区域以外的电磁频谱（即，毫米波、红外线、紫外线、甚至X射线），用于电磁辐射的高功率相干发生器的应用。
In this introduction to the Special Issue on vacuum electronics, the history, operating principles, and recent technological trends of vacuum electronic devices are reviewed. The development of microwave power tubes is described; and improvements in these devices over the past quarter of a century are highlighted. These improvements have been substantial and have been driven by modern high-power applications and by advances in materials and computational science. The second part of this paper describes the advent of a new class of vacuum electronics generator as involving relativistic electron beams and interaction with fast waves (e.g., gyrotrons,, free-electron lasers). These new types of generators are opening the electromagnetic spectrum beyond the microwave region (i.e., millimeter-wave, infrared, ultraviolet, and even X ray) for applications of high-power, coherent generators of electromagnetic radiation.