W波段带状注速调管电子光学及注波互作用系统的研究
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中国科学院电子学研究所 中国科学院高功率微波源与技术重点实验室,中国科学院电子学研究所 中国科学院高功率微波源与技术重点实验室,中国科学院电子学研究所 中国科学院高功率微波源与技术重点实验室,中国科学院电子学研究所 中国科学院高功率微波源与技术重点实验室,中国科学院电子学研究所 中国科学院高功率微波源与技术重点实验室

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国家自然科学基金(批准号:60501019,10775139,60971073)


The investigation of electron optics system and beam-wave interactions for novel w-band sheet beam klystron
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Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences,Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences,Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences,Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences,Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences

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    摘要:

    通过冷流模型理论对均匀场聚焦带状电子注的传输进行了研究,结果表明, 通过增强聚焦磁场并提高电子注填充高度因子,可以有效降低Diocotron不稳定性并实现长距离的稳定传输。结合理论研究,对均匀场聚焦带状注电子光学系统进行了三维仿真设计与优化,利用自主开发的二维非线性注波互作用程序SBK2D,对W波段带状注速调管进行了初步分析,结果为输出峰值功率69kW、效率24%、增益37dB、3dB带宽100 MHz。研制出的具有高机械对准精度的带状注速调管电子束管,带状注截面为10 mmx0.5 mm,且在电子注电压20~82kV,电流0.50~4.27A,长度为100 mm的漂移通道内电子注传输直流通过率达到98%以上,高于了之前在90 mm漂移通道内获得的95%的实验结果.

    Abstract:

    The cold fluid model theory are used for the transport and its instability for the sheet electron beam in the uniform magnetic field, which are indicated that, if the focusing magnetic field and the filling factor of the beam in tube are increased, the Diocotron instability will be decreased to achieve the transportation in long distance. Then, the 3D simulation method is developed to obtain the electron optics system for the W-band sheet beam klystron. Furthermore, a 2D macro-particle model for sheet electron beam is proposed to develop a beam-wave interaction simulation program code for SBK, named SBK2D. And the beam wave interaction processes for the W-band SBK with 8 multi-gap cavities are calculated using the SBK2D, the 69kW high frequency output with the efficiency of 24% , gain of 37 dB and 3dB bandwidth of 100MHz are observed. Finally, the w-band sheet beam tube is manufactured. The transmission rate and cross-section experiments are performed with the beam voltage of 20-82 kV, beam current of 0.5-4.27A, and the length of tunnel of 100mm,and more than 98% transmission rate with the beam cross-section about 10mmx0.5mm are obtained.

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阮存军,王树忠,韩莹,张小锋,陈姝媛. W波段带状注速调管电子光学及注波互作用系统的研究[J].红外与毫米波学报,2012,31(6):510~516]. RUAN Cun-Jun, WANG Shu-Zhong, HAN Ying, ZHANG XiaoFeng, CHEN Shu-Yuan. The investigation of electron optics system and beam-wave interactions for novel w-band sheet beam klystron[J]. J. Infrared Millim. Waves,2012,31(6):510~516.]

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  • 收稿日期:2011-09-08
  • 最后修改日期:2012-03-02
  • 录用日期:2011-10-09
  • 在线发布日期: 2012-11-21
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