Development of a 395GHz/100W/CW gyrotron and its application to DNP-NMR

2008 Fiscal Year Final Research Report

• Project/Area Number: 19560341
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: University of Fukui
• Principal Investigator: IDEHARA Toshitaka University of Fukui, 遠赤外領域開発研究センター, 教授 (80020197)
• Co-Investigator(Kenkyū-buntansha): LA Agusu 福井大学, 遠赤外領域開発研究センター, 機関研究員 (60447703) ; SAITO Teruo 福井大学, 遠赤外領域開発研究センター, 教授 (80143163) ; OGAWA Isamu 福井大学, 遠赤外領域開発研究センター, 教授 (90214014)
• Project Period (FY): 2007 – 2008
• Keywords: 光源技術 / テラヘルツ / 磁気共鳴 / 蛋白質 / 計測工学

Research Abstract

電子スピン共鳴(ESR)によりスピンのエネルギーレベル遷移を促し、非平衡分布を形成することにより生じる巨大な電子スピン分極を核スピンに移行して、NMR装置の感度を向上するためのDNP(動的核分極)法をサブテラヘルツ波領域で新たに開発し、蛋白質分子の構造解析に応用するための高出力サブテラヘルツ光源として、395GHzで安定にCW動作する出力50Wの二次高調波ジャイロトロンを開発した。

Research Products

• [Journal Article] Review of Subterahertz and Terahertz Gyrodevices at IAP RAS and FIR FU , T. Tatematsu, V. Zapevalov IEEE Trans (2009)
  • Author(s): V. Bratman, M. Glyavin, T. Idehara, Y. Kalynov, A. Luchinin, V. Manuilov, S. Mitsudo, I. Ogawa, T. Saito, T. Tatematsu, V. Zapevalov
  • Journal Title: Plasma Sci 37, no.1 Pages: 36-43
• [Journal Article] Achievement of high power sub-terahertz radiations with a second harmonic gyrotron (2009)
  • Author(s): Takashi NOTAKE, Teruo SAITO, Yoshinori TATEMATSU, Akihito FUJII, Shinya OGASAWARA, La AGUSU, Vladimir N. MANUILOV, Isamu OGAWA, and Toshitaka IDEHARA
  • Journal Title: Plasma Fusion Res 011(2 pages)
• [Journal Article] Frequency tunable gyrotron using backward-wave components (2009)
  • Author(s): T.H. Chang, T. Idehara, I. Ogawa, L. Agusu, and S. Kobayashi
  • Journal Title: J.Appl. Phys 105
• [Journal Article] Long Pulse Operation of the THz Gyrotron with a Pulse Magnet (2008)
  • Author(s): T. Idehara, T. Saito, H. Mori, H. Tsuchiya, La Agusu, and S. Mitsudo
  • Journal Title: Int. J. of Infrared and Millimeter Waves 29, No.2 Pages: 131-141
• [Journal Article] Development of THz gyrotrons and application to high power THz technologies (2008)
  • Author(s): T. Idehara, I. Ogawa, T. Saito, S. Mitsudo, Y. Tatematsu, La Agusu, H. Mor, and S. Kobayashi
  • Journal Title: Terahertz Science and Technologies Vol.1, no.2 Pages: 100-106
• [Journal Article] Subterahertz gyrotron development for collective Thomson scattering in LHD (2008)
  • Author(s): T. Notake, T. Saito, Y. Tatematsu, S. Kubo, T. Shimozuma, K. Tanaka, M. Nishiura, A. Fujii, La Agusu, I. Ogawa, and T. Idehara
  • Journal Title: Rev.Sci.Instrrum 79 No.10 Pages: 10E732-1-10E732-3
• [Journal Article] Development of Terahertz FU CW Gyrotron Series for DNP-NMR (2008)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, La Agusu, H. Mori, and S. Kobayashi
  • Journal Title: Applied Magnetic Resonance 34 Pages: 265-275
• [Journal Article] The potential of the gyrotrons for development of the sub-terahertz and the terahertz range-a review of novel and prospective application (2008)
  • Author(s): T.Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, and S. Sabchevski
  • Journal Title: Thin Solid Films Pages: doi : 10.1016/j.tsf.2008.09.061
• [Journal Article] Development of a Tera Hertz Gyrotron as a Radiation Source (2007)
  • Author(s): Osamu Watanabe, Hirotaka Tsuchita, Hideaki Mori, La Agusu, Seitaro Mitsudo, Isamu Ogawa, Teruo Saito, and Toshitaka Idehara
  • Journal Title: Plasma and Fusion Research 2 Pages: 1043
• [Journal Article] High power oscillator of continuous electromagnetic radiation with a frequency of 300 GHz (2007)
  • Author(s): V. Zapevalov, V.K. Lygin, O.V. Malygin, M.A. Moiseev, V.I. Khizhnyak, V.P. Karpov, E.M. Tai, T. Idehara, S. Mitsudo, I. Ogawa, and T. Saito
  • Journal Title: Radiophysics and Quanrum Electronics 50 Pages: 420-427
• [Presentation] A high power THz radiation source-Gyrotron FU CW III for high power THz technologies(Invited talk) (2008)
  • Author(s): T. Idehara, I. Ogawa, H. Mori, S. Kobayashi, S. Mitsudo, and T. Saito
  • Organizer: 2 nd Japan-Korea Joint Workshop on THz Technology
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20081024-25
• [Presentation] Seitaro Mitsudo and Yoshinori Tatematsu THz Gyrotrons-FU CW Series for high power THz technologies (2008)
  • Author(s): Toshitaka Idehara, Teruo Saito, and Isamu Ogawa
  • Organizer: The 33rd International Conference on Infrared
  • Place of Presentation: Caltech, California, USA
  • Year and Date: 20080914-19
• [Presentation] Development and application of THz gyrotrons(Plenary talk) (2008)
  • Author(s): T. Idehara
  • Organizer: 7 th Int. Workshop on Strong Microwaves : Sources and Applications
  • Place of Presentation: Nizhny Novgorod, Russia
  • Year and Date: 20080727-0802
• [Presentation] High power CW THz radiation sources-Gyrotron FU CW Series for application to high power THz technologies(Invited lecture) (2008)
  • Author(s): T. Idehara
  • Organizer: Int. Symposium on Terehertz between Japan and Sweden
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20080527-29
• [Presentation] H. Mori, S. Kobayashi (2007)
  • Author(s): T. Idehara, I. Ogawa, T. Saito, S. Mitsudo, Y. Tatematsu, and La Agusu
  • Organizer: Development of THz gyrotron s and application to high power THz technologies(Invited talk)
  • Place of Presentation: Shenzhen, China
  • Year and Date: 20071118-23
• [Presentation] Development of a THz gyrotron FU CW III(Topical talk) (2007)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, La Agusu, H. Mori, and S. Kobayashi
  • Organizer: 13 th Int. Symp. On Laser-Aided Plasma Diagnostics
  • Place of Presentation: Takayama, Japan
  • Year and Date: 20070918-21
• [Presentation] Development of THz gyrotrons and their applications to high power THz technologies(Invited paper) (2007)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, La Agusu, H. Mori, and S. Kobayashi
  • Organizer: TeraHertz Dynamics probed with X-rays, European Synchrotron Radiation Facility
  • Place of Presentation: Grenoble
  • Year and Date: 20070910-12
• [Presentation] Development of THz gyrotrons FU CW Series for DNP/NMR(Invited talk) (2007)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, La Agusu, H. Mori, and S. Kobayashi
  • Organizer: Dynamic Nuclear Polarization Symposium, University of Nottingham
  • Place of Presentation: UK
  • Year and Date: 20070829-31
• [Presentation] Development of CW THz gyrotrons in FIR FU(Plenary talk) (2007)
  • Author(s): T. Idehara, H. Tsuchiya, La Agusu, H. Mori, H. Murase, T. Saito, I. Ogawa, and S. Mitsudo
  • Organizer: 6 th Int. Kharkov Symp. on Phys. And Eng. Of Microwaves , Millimeter and Submillimeter Waves(MSMW2007)
  • Place of Presentation: Kharkov, Ukraine
  • Year and Date: 20070625-30
• [Presentation] Development of CW THz Gyrotrons in FIR FU(Invited paper) (2007)
  • Author(s): T. Idehara, H. Tsuchiya, La Agusu, H. Mori, H. Murase, T. Saito, I. Ogawa, and S. Mitsudo
  • Organizer: 8 th IEEE Int. Vacuum Electronics Conf.(IVEC 2007)
  • Place of Presentation: Kitakyushu, Japan
  • Year and Date: 20070515-17
• [Book] テラヘルツ技術総覧 (2007)
  • Author(s): 出原敏孝, 他
  • Publisher: テラヘルツテクノロジーフォーラム編,(有)NGT