Development of high power terahertz radiation source through high frequency gyrotron

• Project/Area Number: 23560393
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: University of Fukui
• Principal Investigator: OGAWA Isamu 福井大学, 遠赤外領域開発研究センター, 教授 (90214014)
• Co-Investigator(Kenkyū-buntansha): IKEDA Ryousuke 独立行政法人日本原子力研究開発機構, 研究員 (80533364)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 高周波ジャイロトロン / テラヘルツ・ジャイロトロン / 高純度モード出力ジャイロトロン / テラヘルツ光源

Research Abstract

The purpose of this research is to realize high power (~ 10 W) radiation source in the terahertz range. Gyrotron is characterized by delivering high output power. In order to obtain high frequency radiation, the gyrotron is equipped with a 20 T superconducting magnet. The gyrotron operated in the magnetic field intensity of 19.3 T produced output radiation. The radiation is detected by a pyro-electric detector. The radiation is not blocked by attaching the high-pass filter to the detector. Cutoff frequency of the high-pass filter is lower than fundamental operation frequency of the gyrotron. The gyrotron output frequency for second harmonic operation is higher than 1 THz. The output power is intense enough to radiation source. The cavity and up-taper to ensure high mode purity output are manufactured and are installed in the gyrotron. High purity mode output will be efficiently converted into the Gaussian beam. This gyrotron is suitable for radiation source in the terahertz range.

Research Products

• [Journal Article] The Direct Spectroscopy of Positronium Hyperfine Structure Using a Sub-THz Gvrotron (2014)
  • Author(s): Akira Miyazaki
  • Journal Title: J. Inf. Milli. Teraherz Waves Volume: 35 Issue: 1 Pages: 91-100
  • DOI: 10.1007/s10762-013-0001-8
  • Peer Reviewed
• [Journal Article] Broadband Continuously Frequency Tunable Gyrotron for 600 MHz DNP-NMR Spectroscopy (2014)
  • Author(s): R.Ikeda, Y.Yamaguchi, Y.Tatematsu, T.Idehara, I.Ogawa, T.Saito, Y. Matsuki, T.Fujiwara
  • Journal Title: Plasma and Fusion Research Volume: 9 Issue: 0 Pages: 1206058-1206058
  • DOI: 10.1585/pfr.9.1206058
  • NAID: 130005089499
  • ISSN: 1880-6821
  • Peer Reviewed
• [Journal Article] X-Ray Detected Magnetic Resonance at sub-THz frequencies using a high power gyrotron source (2012)
  • Author(s): A. Rogalev, J. Goulon, G. Goujon, F. Wilhelm, I.Ogawa, T.Idehara
  • Journal Title: J. Infrared Milli Terahz Waves Volume: 33 Issue: 7 Pages: 777-793
  • DOI: 10.1007/s10762-011-9855-9
  • Peer Reviewed
• [Journal Article] Direct Measurement of Positronium HyperFine StructurẽA New Horizon of Precision Spectroscopy Using Gyrotrons (2012)
  • Author(s): S.Asai, T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, T. Kobayashi, H. Saito, T.Idehara, I.Ogawa, S. Sabchevski
  • Journal Title: Journal of Infrared, Millimeter, and Terahertz Waves Volume: 33 Issue: 7 Pages: 766-776
  • DOI: 10.1007/s10762-011-9864-8
  • Peer Reviewed
• [Journal Article] Development of DNP-Enhanced High-Resolution Solid-State NMR System for the Characterization of the Surface Structure of Polymer Materials (2012)
  • Author(s): F. Horii, T.Idehara, Y. Fujii, I.Ogawa, A. Horii, G. Entzminger, F.D. Doty
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 756-765
  • DOI: 10.1007/s10762-012-9874-1
• [Journal Article] Development of a compact sub-THz gyrotron FU CW CI for application to high power THz technologies (2012)
  • Author(s): Toshitaka Idehara, Jagadish C.Mudiganti, La Agusu, Tomohiro Kanemaki, Isamu Ogawa, Toshimichi Fujiwara, Yoh Matsuki, Keisuke Ueda
  • Journal Title: J.Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 724-744
  • DOI: 10.1007/s10762-012-9911-0
  • Peer Reviewed
• [Journal Article] Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR (2012)
  • Author(s): Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Kosuke Kosuga, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 33 Pages: 43-755
• [Journal Article] Helium-cooling and -spinning dynamic nuclear polarization for sensitivity-enhanced solid-state NMR at 14 T and 30 K (2012)
  • Author(s): Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara
  • Journal Title: Journal of Magnetic Resonance Volume: 225 Pages: 1-9
• [Journal Article] Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR (2012)
  • Author(s): Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Kosuke Kosuga, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara: ※
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 33 Pages: 743-755
  • Peer Reviewed
• [Journal Article] Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR (2012)
  • Author(s): Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Kosuke Kosuga, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara
  • Journal Title: J.Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 745-755
  • DOI: 10.1007/s10762-012-9890-1
  • Peer Reviewed
• [Journal Article] First observation of o-Ps to p-Ps transition and first direct measurement of positronium hyperfine splitting with sub-THz light (2011)
  • Author(s): T.Yamazaki, A.Miyazaki, T.Suehara, T.Namba, S.Asai, T.Kobayashi, H.Saito, Y.Urushizaki, I.Ogawa, T.Idehara, S.Sabchevski
  • Journal Title: Hyperfine Interaction Volume: (online first) Issue: 1-3 Pages: 141-147
  • DOI: 10.1007/s10751-011-0399-0
  • Peer Reviewed
• [Presentation] 大強度ミリ波を用いたポジトロニウム超微細構造の直接測定 (2014)
  • Author(s): 宮崎彬, 山崎高幸, 難波俊雄, 浅井祥仁, 小林富雄, 斎藤晴雄, 末原大幹, 立松芳典, 小川勇, 出原敏孝
  • Organizer: 日本物理学会第69回年次大会
  • Year and Date: 2014-03-28
• [Presentation] Development of Broadband Frequency Tunable Gyrotron Operating at the Fundamental Resonance for 600 MHz DNP-NMR Spectroscopy (2013)
  • Author(s): T.Idehara, R. Ikeda, Y.Tatematsu, I.Ogawa, Y. Yamaguchi, T. Kanemaki, T.Saito
  • Organizer: 38th International Conference on Infrared, Millimeter and Terahertz Waves
  • Place of Presentation: Mainz
  • Year and Date: 2013-09-06
• [Presentation] Sub-THz spectroscopy of the ground state hyperfine splitting of positronium (2013)
  • Author(s): T.Yamazaki, A.Miyazaki, T.Namba, S.Asai, T.Kobayashi, T.Suehara, Y.Tatematsu, I.Ogawa, T.Idehara
  • Organizer: 38th International Conference on Infrared, Millimeter and Terahertz Waves
  • Place of Presentation: Mainz
  • Year and Date: 2013-09-04
• [Presentation] 460 GHz Second Harmonic Gyrotrons for a 700 MHz DNP-NMR Spectroscopy (2013)
  • Author(s): T.Idehara, Y.Tatematsu, Y. Yamaguchi, R. Ikeda, I.Ogawa, T.Saito, Y. Matsuki, K. Ueda, T. Fujiwara, M. Toda
  • Organizer: 38th International Conference on Infrared, Millimeter and Terahertz Waves
  • Place of Presentation: Mainz
  • Year and Date: 2013-06-02
• [Presentation] Stabilization of gyrotron output power using feedback control (2012)
  • Author(s): I.Ogawa, R.Ikeda, Y.Tatematsu, T.Idehara, T.Saito
  • Organizer: 37th International Conference on Infrared, Millimeter and Terahertz Waves
  • Place of Presentation: Wollongong (Australia)
• [Presentation] Development of THz gyrotrons for application to high power THz technologies (2012)
  • Author(s): T.Idehara, I.Ogawa, S. Mitsudo, Y.Tatematsu, T.Saito
  • Organizer: The 9 th Australia-Japan workshop on plasma diagnostics
  • Place of Presentation: Naka, Ibaraki, Japan
  • Invited
• [Presentation] 高周波ジャイロトロンの発振出力の安定化 (2011)
  • Author(s): 小川勇, 池田亮介, 細窪素直, 出原敏孝
  • Organizer: プラズマ・核融合学会第28回年会/応用物理学会第29回プラズマプロセシング研究会/日本物理学会(領域2)2011年秋季大会
  • Place of Presentation: Ishikawa Ongakudo, Kanazawa-shi, Ishikawa
  • Year and Date: 2011-11-23
• [Presentation] 基本波発振による400 GHz帯周波数連続可変ジャイロトロンの開発 (2011)
  • Author(s): 池田亮介, 出原敏孝, 小川勇, 立松芳典, 山田幸毅,山口裕資, 斉藤輝雄, 松木陽, 植田啓介, 藤原敏道, T.H. Chang, N.C. Chen
  • Organizer: プラズマ・核融合学会第28回年会/応用物理学会第29回プラズマプロセシング研究会/日本物理学会(領域2)2011年秋季大会
  • Place of Presentation: Ishikawa Ongakudo, Kanazawa-shi, Ishikawa
  • Year and Date: 2011-11-23
• [Presentation] Development of THz Gyrotron FU CW III using a 20 T superconducting magnet (2011)
  • Author(s): Isamu Ogawa, Kosuke Kosuga, Toshitaka Idehara,Ryosuke Ikeda, Jagadish Mudiganti
  • Organizer: 36th International Conference on Infrared, Millimeter, and Terahertz Waves
  • Place of Presentation: Hyatt Regency Houston, Texas, USA
  • Year and Date: 2011-10-05
• [Presentation] 大強度ミリ波を用いたポジトロニウム超微細構造の直接測定
  • Author(s): 宮崎 彬，山崎 高幸，難波 俊雄，浅井 祥仁，小林 富雄，斎藤 晴雄，末原 大幹, 立松 芳典, 小川 勇, 出原 敏孝
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 平塚市
• [Presentation] Development of Broadband Frequency Tunable Gyrotron Operating at the Fundamental Resonance for 600 MHz DNP-NMR Spectroscopy
  • Author(s): T.Idehara, R. Ikeda, Y.Tatematsu, I.Ogawa, Y. Yamaguchi, T. Kanemaki, T.Saito
  • Organizer: 38th International Conference on Infrared, Millimeter and Terahertz Waves
  • Place of Presentation: Mainz