Design and Analysis of a Magnetron Injection Gun for G-Band TE13 Mode Gyro-TWT

被引：2

作者：

Dai, Boxin ^{[1
]}

Jiang, Wei ^{[1
]}

Liu, Guo ^{[1
]}

Yao, Yelei ^{[1
]}

Wang, Jianxun ^{[1
]}

Han, Binyang ^{[1
]}

Lu, Chaoxuan ^{[1
]}

Luo, Yong ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2023年 / 70卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Gyro-traveling-wave tube (gyro-TWT); magnetron injection gun (MIG); stray electron; TE13; mode; transportation stability; Cathodes; Transportation; Thermal expansion; Morphology; Electron beams; Magnetic fields; Electric fields; ELECTRON-BEAM; SIMULATION;

D O I：

10.1109/TED.2023.3250179

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electron beam transportation stability is important to the gyro-traveling-wave tube (gyro-TWT). For conventional G-band TE01 mode magnetron injection gun (MIG), the transportation performance is unsatisfactory because of the small interaction tunnel. For the transportation problem, a MIG with a slotted cathode for G-band TE13 mode gyro-TWT is proposed in this article. The MIG is designed and optimized, and a velocity ratio of 1.15 and a transverse velocity spread of 0.58% are obtained. Furthermore, the cathode has been produced and fabricated. A thermal test, a surface morphology test, and a computed tomography (CT) scan have been carried out. Then, beam quality and transportation stability are analyzed when thermal expansion, morphology deviation, stray electron, and magnetic field misalignment exist, respectively. The beam transportation performance is good under all conditions, and the total simulated velocity spread of the main electron is 3.3%.

引用

页码：2495 / 2501

页数：7

共 23 条

[21] Design and Simulation of Coaxial Magnetron Injection Gun for a 170-GHz MW-Class Gyrotron
Wang, Kai
Xue, Qianzhong
Zhang, Shan
Zhao, Ding
Zhang, Lianzheng
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (06) : 2244 - 2253
[22] Influence of Misalignment on the Behavior of Electron Beam of an 800 GHz Gyrotron
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[J]. IEEE ELECTRON DEVICE LETTERS, 2021, 42 (11) : 1662 - 1665
[23] Design and Simulation Analysis of a Magnetron Injection Gun for a 0.42 THz Second Harmonic Gyrotron
Zhang, Yanyan
Yu, Sheng
Zhang, Tianzhong
Yang, Youwei
Zhao, Qixiang
[J]. JOURNAL OF FUSION ENERGY, 2015, 34 (06) : 1385 - 1391

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