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An X-band coaxial multi-beam relativistic klystron amplifier is designed in order to increase the output microwave power and the operating frequency of the amplifier tube. Based on the results from PIC simulation, the experiment is performed on the long pulse accelerator. In the experiment, the transmittal and bunching of electron beam are analyzed, and then the amplifier is driven by a beam of 4.2 kA at 700 kV, and an external source injects microwave power of 60 kW into an input cavity, then 670 MW microwave power of 5 Hz repeating frequency is extracted, the amplifier gain is about 40 dB, the pulse width is 89 ns, and the conversion efficiency is 23%. The experiment proves that several tens kW-level input power can drive the X-band coaxial multi-beam relativistic klystron amplifier to generate several hundred MW-level long pulse output power.
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Keywords:
- relativistic klystron amplifier /
- X-band /
- long pulse /
- coaxial multi-beam
[1] Benford J, Swegle J A 2008 High Power Microwave Second Edition (translated by Jiang W H, Zhang C) (Beijing: National Defense Industry Press) pp293-335 (in Chinese) [Benford J, Swegle J A 2008 高功率微波(第二版) (中译本) (江伟华, 张弛译) (北京: 国防工业出版社)第293–335页]
[2] Robert J. B, Edl S 2005 High Power Microwave Sources and Technologies (translated by group of High Power Microwave Sources and Technologies) (BeiJing: Tsinghua university Press) pp57-63 (in Chinese) [ Robert J. B, Edl S 2005高功率微波源与技术(中译本) (高功率微波源与技术翻译组译) (北京: 清华大学出版社)第57–63页]
[3] Pasour J, Smithe D, Ludeking L 2003 The American Institute of Physics Conf. Proc 691 141
[4] Luo J R, Cui J, Zhu M, Guo W 2013 Chin. Phys. B 22 067803
[5] Ding Y G 2010 Design, Manufacture and Application of High Power Klystron (BeiJing: National Defense Industry Press) pp57-60 (in Chinese) [丁耀根2010 大功率速调管的设计制造和应用(北京: 国防工业出版社)第57–60页]
[6] Liu Z B, Huang H, Jin X, Zhao Y C, He H, Lei L R, Chen Z F 2013 Physics of Plasmas 20 113101
[7] Fazio M V, Haynes W B, Carlst En B E 1994 IEEE Trans. Plas. Sci. 22 740
[8] Liu Z B, Jin X, Huang H, Chen H B Wang G P 2012 Acta Phys. Sin. 61 248401 (in Chinese) [刘振帮, 金晓, 黄华, 陈怀璧, 王淦平 2012 物理学报 61 248401]
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[1] Benford J, Swegle J A 2008 High Power Microwave Second Edition (translated by Jiang W H, Zhang C) (Beijing: National Defense Industry Press) pp293-335 (in Chinese) [Benford J, Swegle J A 2008 高功率微波(第二版) (中译本) (江伟华, 张弛译) (北京: 国防工业出版社)第293–335页]
[2] Robert J. B, Edl S 2005 High Power Microwave Sources and Technologies (translated by group of High Power Microwave Sources and Technologies) (BeiJing: Tsinghua university Press) pp57-63 (in Chinese) [ Robert J. B, Edl S 2005高功率微波源与技术(中译本) (高功率微波源与技术翻译组译) (北京: 清华大学出版社)第57–63页]
[3] Pasour J, Smithe D, Ludeking L 2003 The American Institute of Physics Conf. Proc 691 141
[4] Luo J R, Cui J, Zhu M, Guo W 2013 Chin. Phys. B 22 067803
[5] Ding Y G 2010 Design, Manufacture and Application of High Power Klystron (BeiJing: National Defense Industry Press) pp57-60 (in Chinese) [丁耀根2010 大功率速调管的设计制造和应用(北京: 国防工业出版社)第57–60页]
[6] Liu Z B, Huang H, Jin X, Zhao Y C, He H, Lei L R, Chen Z F 2013 Physics of Plasmas 20 113101
[7] Fazio M V, Haynes W B, Carlst En B E 1994 IEEE Trans. Plas. Sci. 22 740
[8] Liu Z B, Jin X, Huang H, Chen H B Wang G P 2012 Acta Phys. Sin. 61 248401 (in Chinese) [刘振帮, 金晓, 黄华, 陈怀璧, 王淦平 2012 物理学报 61 248401]
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