Theoretical and Experimental Investigation on the Effect of Beam Misalignment on a Second Harmonic 0.8 THz Gyrotron

IF 3.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Terahertz Science and Technology Pub Date : 2024-03-05 DOI:10.1109/TTHZ.2024.3373251

Xianfei Chen;Houxiu Xiao;Yu Huang;Runfeng Tang;Donghui Xia;Xiaotao Han

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Abstract

The misalignment is an important factor that accounts for the deviation of the experimental results from the theoretical design of high-frequency gyrotrons. This article investigates the effect of the electron beam misalignment on the operation of a second harmonic 0.8 THz gyrotron through theoretical analysis and experiments. The rise of the starting current, efficiency degradation, continuous frequency tunability, and harmonic mode competition of the 0.8 THz gyrotron under the effect of different types of beam misalignment is analyzed comprehensively using a self-consistent model, providing a general picture for the potential effect of beam misalignment on high-frequency harmonic gyrotrons. The alignment process and experimental results of the 0.8 THz gyrotron tube installed in a 15 T magnet with XY -tables and optical probes are also discussed. The results are referential to the development of high-frequency gyrotrons for high-power THz applications.

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光束错位对二次谐波 0.8 太赫兹陀螺仪影响的理论和实验研究

偏差是导致实验结果与高频陀螺仪理论设计产生偏差的一个重要因素。本文通过理论分析和实验研究了电子束错位对二次谐波 0.8 THz 陀螺仪运行的影响。利用自洽模型全面分析了0.8 THz陀螺仪在不同类型的电子束错位作用下的启动电流上升、效率下降、连续频率可调谐性以及谐波模式竞争等问题，为电子束错位对高频谐波陀螺仪的潜在影响提供了一个总体描述。此外，还讨论了安装在 15 T 磁体中的 0.8 THz 陀螺管的对准过程和实验结果，以及 XY 工作台和光学探头。这些结果对开发用于大功率太赫兹应用的高频陀螺仪具有参考价值。

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来源期刊

IEEE Transactions on Terahertz Science and Technology ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

7.10

自引率

9.40%

发文量

102

期刊介绍： IEEE Transactions on Terahertz Science and Technology focuses on original research on Terahertz theory, techniques, and applications as they relate to components, devices, circuits, and systems involving the generation, transmission, and detection of Terahertz waves.

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