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Introduction to gyrotrons: principles and applications

发布日期:2020-09-15    作者:     来源:     点击:

题目:Introduction to gyrotrons: principles and applications

报告人:Gregory S. Nusinovich教授,美国马里兰大学电子与应用物理研究所

时间:2020917日(周四)下午19:00

地点:Zoom会议


报告摘要

Gyrotrons are well known as high-power sources of coherent electromagnetic radiation. In the millimeter- and submillimeter-wavelength regions, the power that gyrotronscan radiate in continuous-wave and long-pulse regimes exceed the power of classical microwave tubes by many orders of magnitude. In this lecture, I will give an introduction to the history of the development of gyrotrons. I will start by describing three kinds of coherent electromagnetic radiation by electron beams: Cherenkov or Smith-Purcell radiation, transition radiation, and bremsstrahlung. Then, I will focus on bremsstrahlung, and move from that (describing the history of studies) to cyclotron resonance masers (CRMs). The next step will be the invention of gyrotrons. The last part of this lecture will be devoted to gyrotron applications.

参考文献:

[1] G. S. Nusinovich, Introduction to the physics of gyrotrons. Baltimore: Johns Hopkins University Press, 2004.

[2] G. S. Nusinovich, M.K. A. Thumm and M. I. Petelin, “The Gyrotron at 50: Historical Overview?”, J. Infrared Millimeter and Terahertz Waves, vol. 35, 323-381 (2014).


报告人简介

Gregory S. Nusinovich,回旋管领域顶尖专家,回旋管理论奠基人之一,IEEE fellow,美国物理学会fellow。曾担任前苏联回旋管专家组负责人,1995年至今在美国马里兰大学电子与应用物理研究所任高级研究员。在过去的研究中,为回旋管的发展做出了许多贡献:所在团队最早计算了回旋管的非线性互作用效率;完善了回旋管归一化理论;分析并解释了回旋管中的模式竞争过程等;曾获Kenneth J. Button Prize,“对太赫兹频段范围的回旋管振荡器和放大器的理论和发展做出重要贡献”;参与编写了20余本微波真空电子器件相关著作,其主编的“Introduction to the physics of gyrotron”是许多学者研究回旋管理论的重要参考。已发表了250多篇期刊论文及300多篇会议论文,其中包含5Physical Review Letter以及多篇期刊邀请综述文章,论文被引用超过3000次,H因子37,并受邀在国际会议及研究机构上发表了超过80次演讲。