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Compared with the beam of conventional relativistic klystron, each beam of the multi-beam relativistic klystron has a low perveance and low space charge force, but it has a high conversion efficiency of beam-wave. According to these requirements, in this paper we investigate the generation and transmission of fan-shaped multi-beam intense relativistic electron beams by the experiment and the simulation with using the three-dimensional software, and analyse the electrostatic field distribution of the cathode end and the influence on the generation of the electron beams by establishing a three-dimensional model of electron gun. The emission currents by the particle-in-cell simulation, then the beam spot pictures of electron beam transmission in a hollow drift tube and multiple fan-shaped hole drift tube by the particle tracking solver are obtained. The theoretical analysis and explanation with the aid of the sheet beam theory are presented. The simulation and experimental results show that the beams rotate not only around their own center, but also around the center of the system in the transmission process of the electron beams in the hollow drift tube. Thus we can increase the transmission efficiency by rotating multiple fan-shaped hole drift tube to align the beams.
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Keywords:
- intense relativistic multiple electron beam /
- relativistic klystron /
- electron beams generation /
- electron beam transmission
[1] Ding Y G, Zhu Y S, Yin X L, Sun X X, Shen B, Miao Y Z, Wang C Y 2007 IEEE Trans. Electron Devices 54 624
[2] Nguyen K T, Pershing D E, Abe D K, Levush B, Wood F N, Calame J P, Pasour J A, Petillo J J, Cusick M, Cattelino M J, Wright E L 2004 IEEE Trans. Plasma Science 32 1212
[3] Joshi L M, Nandy P S, Karim R, Kant D, Pal D, Nangru S C, Lamba O S, Ghildiyal A, Verma M K 2008 International Conference of Recent Advances in Microwave Theory and Applications Jaipur, November 21-24, 2008 p188
[4] Zhang R, Wang Y 2007 Vacuum Electronics 25 (in Chinese) [张瑞, 王勇 2007 真空电子技术 25]
[5] Zhang R, Wang Y 2006 High Power Laser and Particle Beams 18 1519 (in Chinese) [张瑞, 王勇 2006 强激光与粒子束 18 1519]
[6] JenSen J, Syratchev I 2006 AIP Conference Proceedings 807 p99
[7] Yu S J, Ding Y G, Jiang Z B, Deng F, Wang C Y 2004 The 5th International Vacuum Electron Sources Conference Beijing, September 6-10, 2004 p340
[8] Ding Y G, Liu P K, Zhan Z Z, Wang Y 2009 IEEE International Vacuum Electronics Conference Rome, April 28-30, 2009 p49
[9] Korolyov A N, Gelvich E A, Zhary Y V, Zakurdayev A D, Poognin V I 2004 IEEE Trans. Plasma Science 32 1109
[10] Liu Z B, Huang H, Jin X, Chen H B 2011 High Power Laser and Paritcle Beams 23 2162 (in Chinese) [刘振帮, 黄华, 金晓, 陈怀壁 2011 强激光与粒子束 23 2162]
[11] Humphries S 1999 Charged Particle Beams (1st Ed.) (Beijing: Atomic Energy Press) p106 (in Chinese) [小斯坦利·汉弗莱斯 1999 带电粒子束(第一版) (北京: 原子能出版社) 第106页]
[12] Baker R J, Schamiloglu E 2005 High-Power Microwave Sources and Technologies (1st Ed.) (Beijing: Tsinghua University Press ) p282 (in Chinese) [Baker R J, Schamiloglu E 2005 高功率微波源与技术(第一版)(北京: 清华大学出版社)第282页]
[13] Zhong W L 2008 M. S. Dissertation (Changsha: National University of Defense Technology) (in Chinese) [钟文丽 2008 硕士学位论文 (长沙: 国防科学技术大学)]
[14] Shiffler D, Ruebush M, LaCour M, Golby K, Umstattd R, Clark M C, Luginsland J, Zagar D, Sena M 2001 Appl. Phys. Lett. 79 2871
[15] Wang G P, Xiang F, Tan J, Luo M, Kang Q, Cao S Y 2010 High Power Laser and Particle Beams 22 2437) (in Chinese) [王淦平, 向飞, 谭杰, 罗敏, 康强, 曹绍云 2010 强激光与粒子束 22 2473]
[16] Huang H, He H, Lei L R, Liu Z B, Jin X, Wang G P, Guo Y H 2011 High Power Laser and Particle Beams 23 1583 (in Chinese) [黄华, 何琥, 雷禄容, 刘振帮, 金晓, 王淦平, 郭焱华 2011 强激光与粒子束 23 1583]
[17] Xiang F, Tan J, Zhang Y H, Wang G P, Luo M, Cao S Y, Kang Q, Gong S G, Luo G Y, Li C X, Jin H, Zhang B Z 2010 Acta Phys. Sin. 59 4620 (in Chinese) [向飞, 谭杰, 张永辉, 王淦平, 罗敏, 曹绍云, 康强, 龚胜刚, 罗光耀, 李春霞, 金晖, 张北镇 2010 59 4620]
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[1] Ding Y G, Zhu Y S, Yin X L, Sun X X, Shen B, Miao Y Z, Wang C Y 2007 IEEE Trans. Electron Devices 54 624
[2] Nguyen K T, Pershing D E, Abe D K, Levush B, Wood F N, Calame J P, Pasour J A, Petillo J J, Cusick M, Cattelino M J, Wright E L 2004 IEEE Trans. Plasma Science 32 1212
[3] Joshi L M, Nandy P S, Karim R, Kant D, Pal D, Nangru S C, Lamba O S, Ghildiyal A, Verma M K 2008 International Conference of Recent Advances in Microwave Theory and Applications Jaipur, November 21-24, 2008 p188
[4] Zhang R, Wang Y 2007 Vacuum Electronics 25 (in Chinese) [张瑞, 王勇 2007 真空电子技术 25]
[5] Zhang R, Wang Y 2006 High Power Laser and Particle Beams 18 1519 (in Chinese) [张瑞, 王勇 2006 强激光与粒子束 18 1519]
[6] JenSen J, Syratchev I 2006 AIP Conference Proceedings 807 p99
[7] Yu S J, Ding Y G, Jiang Z B, Deng F, Wang C Y 2004 The 5th International Vacuum Electron Sources Conference Beijing, September 6-10, 2004 p340
[8] Ding Y G, Liu P K, Zhan Z Z, Wang Y 2009 IEEE International Vacuum Electronics Conference Rome, April 28-30, 2009 p49
[9] Korolyov A N, Gelvich E A, Zhary Y V, Zakurdayev A D, Poognin V I 2004 IEEE Trans. Plasma Science 32 1109
[10] Liu Z B, Huang H, Jin X, Chen H B 2011 High Power Laser and Paritcle Beams 23 2162 (in Chinese) [刘振帮, 黄华, 金晓, 陈怀壁 2011 强激光与粒子束 23 2162]
[11] Humphries S 1999 Charged Particle Beams (1st Ed.) (Beijing: Atomic Energy Press) p106 (in Chinese) [小斯坦利·汉弗莱斯 1999 带电粒子束(第一版) (北京: 原子能出版社) 第106页]
[12] Baker R J, Schamiloglu E 2005 High-Power Microwave Sources and Technologies (1st Ed.) (Beijing: Tsinghua University Press ) p282 (in Chinese) [Baker R J, Schamiloglu E 2005 高功率微波源与技术(第一版)(北京: 清华大学出版社)第282页]
[13] Zhong W L 2008 M. S. Dissertation (Changsha: National University of Defense Technology) (in Chinese) [钟文丽 2008 硕士学位论文 (长沙: 国防科学技术大学)]
[14] Shiffler D, Ruebush M, LaCour M, Golby K, Umstattd R, Clark M C, Luginsland J, Zagar D, Sena M 2001 Appl. Phys. Lett. 79 2871
[15] Wang G P, Xiang F, Tan J, Luo M, Kang Q, Cao S Y 2010 High Power Laser and Particle Beams 22 2437) (in Chinese) [王淦平, 向飞, 谭杰, 罗敏, 康强, 曹绍云 2010 强激光与粒子束 22 2473]
[16] Huang H, He H, Lei L R, Liu Z B, Jin X, Wang G P, Guo Y H 2011 High Power Laser and Particle Beams 23 1583 (in Chinese) [黄华, 何琥, 雷禄容, 刘振帮, 金晓, 王淦平, 郭焱华 2011 强激光与粒子束 23 1583]
[17] Xiang F, Tan J, Zhang Y H, Wang G P, Luo M, Cao S Y, Kang Q, Gong S G, Luo G Y, Li C X, Jin H, Zhang B Z 2010 Acta Phys. Sin. 59 4620 (in Chinese) [向飞, 谭杰, 张永辉, 王淦平, 罗敏, 曹绍云, 康强, 龚胜刚, 罗光耀, 李春霞, 金晖, 张北镇 2010 59 4620]
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