Development of a small size, large current electron gun for terahertz band gyrotron suppressing space charge effect

2012 Fiscal Year Final Research Report

• Project/Area Number: 23656237
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: University of Fukui
• Principal Investigator: SAITO Teruo 福井大学, 遠赤外領域開発研究センター, 教授 (80143163)
• Co-Investigator(Kenkyū-buntansha): TATEMATSU Yoshinori 福井大学, 遠赤外領域開発研究センター, 准教授 (50261756)
• Project Period (FY): 2011 – 2012
• Keywords: ジャイロトロン / テラヘルツ / 電子銃 / 国際研究者交流 / 有限電荷効果の抑制 / 2次高調波単独発振 / ロシア

Research Abstract

A quantitative design method of a small size, large current electron gun has been established that realizes high power gyrotrons of 100 kW level second harmonic oscillation in the 0.4 THz band and 200 kW level fundamental harmonic oscillation in the 0.3 THz band. Single mode second harmonic oscillation of 83 kW at 389 GHz has been successfully demonstrated with optimization of the operation conditions using this method. An electron gun for 300 GHz band fundamental harmonic gyrotron was fabricated and over 200kW oscillation has proved successful.

Research Products

• [Journal Article] Formation of a laminar electron flow for 300 GHz high-power pulsed gyrotron (2012)
  • Author(s): Yuusuke Yamaguchi, Yoshinori Tatematsu, Teruo Saito, Ryosuke Ikeda, Jagadish C Mudiganti, Isamu Ogawa and Toshitaka Idehara
  • Journal Title: Phys. Plasmas Volume: 19 Pages: 113113
  • URL: http://dx.doi.org/10.1063/1.4768959
• [Journal Article] Observation of Dynamic Interactions between Fundamental and Second-Harmonic Modes in a High-Power Sub-Terahertz Gyrotron Operating in Regimes of Soft and Hard Self-Excitation (2012)
  • Author(s): Teruo Saito, Yoshinori Tatematsu, Yuusuke Yamaguchi, Shinji Ikeuchi, Shinya Ogasawara, Naoki Yamada, Ryosuke Ikeda, Isamu Ogawa, Toshitaka Idehara
  • Journal Title: Phys. Rev. Lett Volume: 109 Pages: 155001
• [Journal Article] Generation of High Power Sub-THz Radiation from a Gyrotron with Second Harmonic Oscillation (2012)
  • Author(s): Teruo Saito, Naoki Yamada,Shinji Ikeuchi,Shinya Ogasawara, Yoshinori Tatematsu, Ryosuke Ikeda, Isamu Ogawa, Toshitaka Idehara, Vladimir N. Manuilov, Takashi Shimozuma,Shin Kubo,Masaki Nishiura,Kenji Tanaka, and Kazuo Kawahata
  • Journal Title: Phys. Plasmas Volume: 19 Pages: 063106
  • URL: http://dx.doi.org/10.1063/1.4729316
• [Journal Article] Formation of Laminar Electron Flow for a High-Power Sub-THz Gyrotron (2012)
  • Author(s): Yuusuke YAMAGUCHI, Yoshinori TATEMATSU, Teruo SAITO, Ryosuke IKEDA, Jagadish C. MUDIGANTI, Isamu OGAWA and Toshitaka IDEHARA
  • Journal Title: Plasma Fusion Res Volume: 7 Pages: 1206003
• [Journal Article] New Power Records of Sub-Terahertz Gyrotron with Second-Harmonic Oscillation (2012)
  • Author(s): Teruo SAITO, Shinya OGASAWARA, Naoki YAMADA, Shinji IKEUCHI, Yoshinori TATEMATSU, Ryosuke IKEDA, Isamu OGAWA and Vladimir N. MANUILOV
  • Journal Title: Plasma Fusion Res Volume: 7 Pages: 1206003
• [Presentation] サブテラヘルツ帯2次高調波ジャイロトロンの高出力発振と非線形モード間相互作用 (2013)
  • Author(s): 斉藤輝雄
  • Organizer: 日本物理学会 第68回年次大会、28pEC-1
  • Place of Presentation: 東広島市
  • Year and Date: 2013-03-28
• [Presentation] テラヘルツ帯ジャイロトロンの高性能化へ向けた電子銃設計 (2013)
  • Author(s): 山口裕資、立松芳典、斉藤輝雄、池田亮介、小川勇、出原敏孝
  • Organizer: 日本物理学会 第68回年次大会、28pEC-2
  • Place of Presentation: 東広島市
  • Year and Date: 2013-03-28
• [Presentation] 300 GHz帯高出力パルスジャイロトロンの開発II (2013)
  • Author(s): 池内真司、山口裕資、斉藤輝雄、立松芳典、池田亮介、小川勇、出原敏孝
  • Organizer: 日本物理学会 第68回年次大会、28pEC-3
  • Place of Presentation: 東広島市
  • Year and Date: 2013-03-28
• [Presentation] 300 GHz, 100 kW 級パルスジャイロトロンの開発 (2012)
  • Author(s): 山口裕資、池内真司、斉藤輝雄、立松芳典、池田亮介、小川勇、出原敏孝
  • Organizer: 第29回プラズマ・核融合学会年会、29pB03
  • Place of Presentation: 春日市
  • Year and Date: 2012-11-29
• [Presentation] Mode Competition and Cooperation in High Power Sub-THz Gyrotrons (2012)
  • Author(s): Teruo Saito, Naoki Yamada, Shinji Ikeuchi, Shinya Ogasawara, Yuusuke Yamaguchi, Yoshinori Tatetmatsu, Ryosuke Ikeda, and Isamu Ogawa
  • Organizer: 37th International Conference on Infrared, Millimeter and Terahertz Waves, Tue-A-3-4
  • Place of Presentation: Wollongong (Australia)
  • Year and Date: 2012-09-25
• [Presentation] Development of a High-Power 295 GHz Fundamental-Harmonic Gyrotron (2012)
  • Author(s): Y. Yamaguchi, T. Saito, Y. Tatematsu, S. Ikeuchi, N. Yamada, R. Ikeda, Ogawa and T. Idehara
  • Organizer: 37th International Conference on Infrared, Millimeter and Terahertz Waves, Tue-A-3-5
  • Place of Presentation: Wollongong (Australia)
  • Year and Date: 2012-09-25
• [Presentation] 300 GHz 高出力パルスジャイロトロンの開発 (2012)
  • Author(s): 山口裕資、池内真司、斉藤輝雄、立松芳典、山田尚輝、池田亮介、小川勇、出原敏孝
  • Organizer: 日本物理学会2012年秋季大会、18aFJ-1
  • Place of Presentation: 横浜市
  • Year and Date: 2012-09-18
• [Presentation] サブテラヘルツ帯高出力パルスジャイロトロンのモード間相互作用 (2012)
  • Author(s): 池内真司、斉藤輝雄、立松芳典、小笠原慎弥、山田尚輝、山口裕資、池田亮介、小川勇、出原敏孝
  • Organizer: 日本物理学会2012年秋季大会、18aFJ-2
  • Place of Presentation: 横浜市
  • Year and Date: 2012-09-18
• [Presentation] マグネトロン入射型電子銃によるラミナー電子流の形成 (2012)
  • Author(s): 山口裕資、立松芳典, 斉藤輝雄、池田亮介、J. C. Mudianti、小川 勇、出原敏孝
  • Organizer: 日本物理学会第67回年次大会、25pYE-6
  • Place of Presentation: 神戸市
  • Year and Date: 2012-03-25
• [Presentation] Formation of laminar electron flow for 300 GHz high-power pulsed gyrotron (2012)
  • Author(s): Y. Yamaguchi, Y. Tatematsu, T. Saito, R. Ikeda, J. C. Mudiganti, I. Ogawa, T. Idehara
  • Organizer: The 4th International Workshop on Far Infrared Technologies 9a-7
  • Place of Presentation: 福井市(招待講演)
  • Year and Date: 2012-03-09
• [Presentation] LHDにおける共同トムソン散乱への適用を目指したサブテラヘルツ帯ジャイロトロンによる高出力発振の実証 (2011)
  • Author(s): 斉藤輝雄、立松芳典、山田尚輝、池田亮介、山口裕資、小川 勇、出原 敏孝、V. N. Manuilov、小笠原慎弥、下妻隆、久保伸、西浦正樹、田中謙治、川端一男
  • Organizer: Plasma Conference 2011、24E06
  • Place of Presentation: 金沢市(招待講演)
  • Year and Date: 2011-11-24
• [Presentation] 300 GHz 高出力パルスジャイロトロンの実現に向けた電子銃開発 (2011)
  • Author(s): 山口裕資、立松芳典、斉藤輝雄、山田尚輝、池田亮介、Jagadish C. Mudiganti、小川 勇、出原敏孝
  • Organizer: Plasma Conference 2011
  • Place of Presentation: 金沢市
  • Year and Date: 2011-11-22
• [Presentation] サブテラヘルツ帯の高出力パルスジャイロトロンの開発 (2011)
  • Author(s): 山田尚輝、斉藤輝雄、立松芳典、池内真司、山口裕資、池田亮介、小川 勇、出原敏孝、小笠原慎弥、久保 伸、下妻 隆、田中謙治、西浦正樹、V. N. Manuilov
  • Organizer: Plasma Conference 2011
  • Place of Presentation: 金沢市
  • Year and Date: 2011-11-22
• [Presentation] Development of high power sub terahertz power source with a gyrotron for application to CTS measurement (2011)
  • Author(s): T. Saito, Y. Tatematsu, N. Yamada, S. Ogasawara, T. Idehara, S. Kubo, T. Shimozuma, K. Tanaka, M. Nishiura, K. Kawahata, V. N. Manuilov
  • Organizer: 15th International Symposium on Laser-Aided Plasma Diagnostics, T11
  • Place of Presentation: Jeju, Korea.
  • Year and Date: 2011-10-11
• [Presentation] Design of MIG for 300 GHz High-Power Pulsed Gyrotron (2011)
  • Author(s): Y. Yamaguchi, Y. Tatematsu, N. Yamada, T. Saito, R. Ikeda, J. C. Mudiganti, I. Ogawa, T. Idehara
  • Organizer: 36th International Conference on Infrared, Millimeter and Terahertz Waves, Tu5.1
  • Place of Presentation: Houston, USA
  • Year and Date: 2011-10-04
• [Presentation] High Power Sub-THz Radiation from a Gyrotron with Second Harmonic Oscillation (2011)
  • Author(s): T. Saito, Y. Tatematsu, N. Yamada, S. Ogasawara, Y. Yamaguchi, T. Idehara, V. N. Manuilov
  • Organizer: 36th International Conference on Infrared, Millimeter and Terahertz Waves, W3A.5
  • Place of Presentation: Houston, USA
  • Year and Date: 2011-10-03
• [Presentation] Development of high power gyrotrons in the sub terahertz region for application to CTSMeasurement (2011)
  • Author(s): T. Saito, Y. Tatematsu, N. Yamada, S. Ogasawara, R. Ikeda, I. Ogawa, T. Idehara, V. N. Manuilov
  • Organizer: 8th International Workshop on Strong Microwaves and Terahertz Waves: Sources and Applications(招待講演), S5
  • Place of Presentation: Nizhny Novgorod, Russia
  • Year and Date: 2011-07-14
• [Remarks]
  • URL: http://fir.u-fukui.ac.jp/