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Mode conversion and high-efficient transmission of submillimeter wave gyrotron output for plasma diagnostics

Research Project

Project/Area Number 09680458
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field プラズマ理工学
Research InstitutionFukui University

Principal Investigator

PEREYASLAVETS Michael  Fukui University, Department of Applied Physics, Associate Professor, 工学部, 助教授 (50291373)

Co-Investigator(Kenkyū-buntansha) IDEHARA Toshitaka  Fukui University, Department of Applied Physics, Professor, 工学部, 教授 (80020197)
OGAWA Isamu  Fukui University, Cryogenic Laboratory, Associate Professor, 工学部, 助教授 (90214014)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 1998: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
KeywordsSubmillimeter wave / Gyrotron / Plasma diagnostics / Mode conversion / High-efficient transmission / サブミリ波 / ガウシアンモード / 偏向器 / サブミリ波ジャイロトロン
Research Abstract

In Fukui University, we have developed ultra-high frequency, medium-power, step-tunable, submillimeter wave gyrotrons (Gyrotron FU Series), operating at cyclotron fundamental and second harmonic resonances. The gyrotrons cover the frequency range up to 890 GI-lz and the power levels are between 100W and 1 kW.In this study, we developed a transmission line system to conduct the output of our submillimeter wave gyrotrons for application to scattering measurement of density fluctuations excited spontaneously in thermonuclear fusion devices.
(1) We have designed and manufactured components of the transmission line operating in a wide frequency range from 156 GHz (TE12 cavity mode) to 812 GHz (TE19 cavity mode). Namely, an antenna system for conversion to Gaussian mode, polarizer consisting of two metal mirrors with grooves, and so on. The complete transmission line was constructed using these components and tested by using the output power of Gyrotron FU IV.Radiation patterns at the point of scattering in a plasma were observed and the transmission efficiency was determined by the result.
(2) The characteristics of the polarizer were tested by using the gyrotron output power. The direction of polarization can be controlled by adjusting the relative angle between grooves of the two mirrors.
(3) The observed results are in good agreement with those expected from the design parameters of the transmission line, We have planned to apply the line to submillimeter wave scattering measurements of thermonuclear fusion devices.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (62 results)

All Other

All Publications (62 results)

  • [Publications] I.Ogawa, et al.: "Production of an intense, well-collimated submillimeter wave beam and its application to plasma scattering measurements" Int.J.Infrared and Millimeter Waves. 19・5. 727-736 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "CW operation of a submillimeter wave gyrotron (Gyrotron FUIV) for high stabilitv of the output frequency" Int.J.Infrared and Millimeter Waves. 19・6. 793-801 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Higher harmonic operations of submillimeter wave gyrotrons (Gyrotron FU Series)" Int.J.Infrared and Millimeter Waves. 19・6. 803-8〓 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Tatsukawa, et al.: "Rubv ESR over a wade frequency range in the millimeter wave region" Int.J.Infrared and Millimeter Waves. 19・6. 859-874 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "High frequency and high mode purity operations of Gyrotron FUIVA" Int.J.Infrared and Millimeter Waves. 19・7. 919-930 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Frequency modulation in a submillimeter-wave gyrotron" Phys.Rev.Lett.81・9. 1973-1974 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Study of electron beam misalignment in a submillimeter wave gyrotron" Int.J.Infrared and Millimeter Waves. 19・10. 1303-1316 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "High stable, cw operation of a submillimeter wave gyrotron" 1998 Asia-Pacific Microwave Conference Proceedings. 2. 765-768 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "High power, frequency tunable, submillimeter wave source Gyrotron FUIVA" 1998 Asia-Pacific Microwave Conference Proceedings. 2. 769-772 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Nonlinear regime of amplitude modulation in submillimeter wave gyrotrons (Gytotron FU III and IV)" Int.J.Infrared and Millimeter Waves. 19・12. 1607-1625 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Frequency measurement of a submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18・1. 259-272 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Pereyaslavets, et al.: "Improvements of mode converters for low-power excitation of gyrotron-type modes" Int.J.Electronics. 82・1. 107-115 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, et al.: "A quasi-optical transmission line for plasma scattering measurements using a submillimeter wave gyrotron" Int.J.Electronics. 83・5. 635-644 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Amplitude modulation of submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18・2. 391-403 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Development and applications of submillimeter wave gyrotrons" Proc.of 3rd Int.Conf.on Strong Microwave in Plasmas. 2. 634-659 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, et al.: "Plasma scattering measurement using a submillimeter wave gyrotron (Gyrotron FU II) as a power source" Fusion Engineering and Design. 34-35. 455-458 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Shimizu, et al.: "Submillimeter wave gyrotron (Gyrotron FUIV) for plasma diagnostics" Fusion Engineering and Design. 34-35. 459-462 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, et al.: "Development of a tera hertz gyrotron (Gyrotron FUIVA) using a 17T supervonducting magnet" Proc.of 1996 Int.Conf.on Plasma Phys.2. 1154-1157 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, et al.: "Plasma scattering measurement using a submillimeter wave gyrotron as a power source" Proc.of 1996 Int.Conf.on Plasma Phys.2. 1158-1161 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Tatsukawa, et al.: "CW operation and amplitude modulation of a submillimeter wave gyrotron (Gyrotron FUIV)" Proc.of 1996 Int.Conf.on Plasma Phys.2. 1162-1165 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.J.Barroso, et al.: "Operation of a 32 GHz gyrotron" Int.J.Infrared and Millimeter Waves. 18・11. 2147-2160 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Pereyaslavets, et al.: "Theory of non-uniform waveguides" IEE,London, 249 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, Y.Yamagishi and T.Tatsukawa: "Frequency measurement of a submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18,1. 259-272 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Pereyaslavets, O.Braz, S.Kern, M.Losert, A.Mobius and M.Thumm: "Improvements of mode converters for low-power excitation of gyrotron-type modes" Int.J.Electronics. 82,1. 107-115 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, A.Sakai, T.Idehara, K.Kawahata and W.Kasparek: "A quasi-optical transmission line for plasma scattering measurements using a submillimeter wave gyrotron" Int.J.Electronics. 83,5. 635-644 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, Y.Shimizu, S.Makino, K.Ichikawa, T.Tatsukawa, L.Ogawa and G.F.Brand: "Amplitude modulation of submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18,2. 391-403 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, T.Tatsukawa, L.Ogawa, N.Nishida and K.Yoshida: "Development and applications of submillimeter wave gyrotrons" Proc.of 3rd Int.Conf.on Strong Microwave in Plasmas. 2. 634-659 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, M.Iwata, T.Idehara, K.Kawahata, H.Iguchi and A.Ejiri: "Plasma scattering measurement using a submillimeter wave gyrotron (Gyrotron FU II)as a power source" Fusion Engineering and Design. 34-35. 455-458 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Shimizu, K.Ichikawa, K.Shibutani, K.Kurahashi, T.Tatsukawa, T,Idehara, I.Ogawa, Y.Okazaki and T.Okamoto: "Submillimeter wave gyrotron (Gyrotron FU IV)for plasma diagnostics" Fusion Engineering and Design. 34-35. 459-462 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, A.Sasaki, T.Idehara, K.Kawahata, A.Ejiri, H.Iguchi and W.Kasparek: "Plasma scattering measurement using a submillimeter wave gyrotron as a power source" Proc.of 1996 Int.Conf.on Plasma Phys.2. 1158-1161 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, Y.Shimizu, K.Kurahashi, K.Yoshida, N.Nishida, T.Kanemaki, I.Ogawa, T.Tatsukawa, Y.Okazaki, T.Okamoto, D.Wagner, G.Gantenbein and M.Thumm: "Development of a terahertz gyrotron (Gyrotron FU IV A) using a 17T superconducting magnet" Proc.of 1996 Int.Conf.on Plasma Phys. 2. 1154-1157 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Tatsukawa, K.Shibutani, K.Yoshida, I.Ogawa and T.Idehara: "CW operation and amplitude modulation of a submillimeter wave gyrotron (Gyrotron FU IV)" Proc.of 1996 Int.Conf.on Plasma Phys. 2. 1162-1165 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.J.Barroso, P.J.Castro, A.A.Pimenta, V.A.Spassov, R.A.Correa, T.Idehara and I.Ogawa: "Operation of a 32 GHz gyrotron" Int.J.Infrared and Millimeter Waves. 18,11. 2147-2160 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, T.Idehara, A.Sakai, K.Yoshida, T.Tsuchida, K.Kawahata, A.Ejiri, H.Iguchi, K.Tanaka, K.Matsuoka, R.Akiyama, M.Osakabe, S.Okamura, T.Minami, C.Takahashi, and W.Kasparek: "Production of an intense, well-collimated submillimeter wave beam and its application to plasma scattering measurements" Int.J.Infrared and Millimeter Waves. 19,5. 727-736 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, K.Yosida, N.Nishida, I.Ogawa, M.L.Pereyaslavets, and T.Tatsukawa: "CW operation of a submillimeter wave gyrotron (Gyrotron FU IV) for high stability of the output frequency" Int.J.Infrared and Millimeter Waves. 19,6. 793-801 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, I.Ogawa, Y.Shimizu, and T.Tatsukawa: "Higher harmonic operations of submillimeter wave gyrotrons (Gyrotron FU Series)" Int.J.Infrared and Millimeter Waves. 19,6. 803-816 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Tatsukawa, T.Shirai, T.Imaizumi, T.Idehara, I.Ogawa, and T.Kanemaki: "Ruby ESR over a wide frequency range in the millimeter wave regin" Int.J.Infrared and Millimeter Waves. 19,6. 859-874 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, N.Nishida, K.Yoshida, I.Ogawa, T.Tatsukawa, D.Wagner, G.Gantenbein, W.Kasparek, and M.Thumm: "High frequency and high mode purity operations of Gyrotron FU IVA" Int.J.Infrared and Millimeter Waves. 19,7. 919-930 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, M.Pereyaslavets, N.Nishida, K.Yosida, and I.Ogawa: "Frequency modulation in a submillimeter-wave gyrotron" Phys.Rev.Lett.81,9. 1973-1976 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, K.Shibutani, H.Nojima, M.Pereyaslavets, K.Yoshida, I.Ogawa, and T.Tatsukawa: "Study of electron beam misalignment in a submillimeter wave gyrotron" Int.J.Infrared and Millimeter Waves. 19,10. 1303-1316 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, K.Yoshida, N.Nishida, I.Ogawa, S.Mitsudo, and M.L.Pereyaslavets: "High stable, cw operation of a submillimeter wave gyrotron" 1998 Asia-Pacific Microwave Conference Proceedings (Dec.8-11,1998, Yokohama, Japan). Vol.2. 765-768 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, S.Mitsudo, N.Nishida, K.Yoshida, T.Tsuchida, T.Shirai, M.Ui, and I.Ogawa: "High power, frequency tunable, submillimeter wave source Gyrotron FU IVA" 1998 Asia-Pacific Microwave Conference Proceedings (Dec.8-11,1998, Yokohama, Japan). Vol.2. 769-772 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Idehara, K.Ichikawa, I.Ogawa, T.Tatsukawa, G.F.Brand: "Nonlinear regime of amplitude modulation in submillimeter wave gyrotrons (Gytotron FU III and IV)" Int.J.Infrared and Millimeter Waves. 19,12. 1617-1625 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] I.Ogawa, et al.: "Production of an intense, well-collimated submillimeter wave beam and its application to plasma scattering measurements" Int.J.Infrared and Millimeter Waves. 19・5. 727-736 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "CW operation of a submillimeter wave gyrotron(Gyrotron FUIV)for high stability of the output frequency" Int.J.Infrared and Millimeter Waves. 19・6. 793-801 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "Higher harmonic operations of submillimeter wave gyrotrons(Gyrotron FU Series)" Int.J.Infrared and Millimeter Waves. 19・6. 803-816 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Tatsukawa, et al.: "Ruby ESR over wade frequency range in the millimeter wave region" Int.J.Infrared and Millimeter Waves. 19・6. 859-874 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "High frequency and high mode purity operations of Gyrotron FUIVA" Int.J.Infrared and Millimeter Waves. 19・7. 919-930 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "Frequency modulation in a submillimeter-wave gyrotron" Phys.Rev.Lett.81・9. 1973-1974 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "Study of electron beam misalignment in a submillimeter wave gyrotron" Int.J.Infrared and Millimeter Waves. 19・10. 1303-1316 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "High stable, cw operation of a submillimeter wave gyrotron" 1998 Asia-Pacific Microwave Conference Proceedings. 2. 765-768 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "High power, frequency tunable, submillimeter wave source Gyrotron FUIVA" 1998 Asia-Pacific Microwave Conference Proceedings. 2. 769-772 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara, et al.: "Nonlinear regime of amplitude modulation in submillimeter wave gyrotrons(Gytotron FU III and IV)" Int.J.Infrared and Millimeter Waves. 19・12. 1607-1625 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Pereyaslavets, et al.: "Theory of non-uniform waveguides" IEE,London, 249 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Idehara: "Frequency measurement of a submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18,1. 259-272 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Idehara: "Amplitude modulation of submillimeter wave gyrotron output" Int.J.Infrared and Millimeter Waves. 18,2,. 391-403 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Idehara: "Development and applications of submillimeter wave gyrotrons" Proc.of 3rd Int.Conf.on Strong Microwave in plasmas. 2,. 634-659 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Ogawa: "Submillimeter wave gyrotron (Gyrotron FU IV) for plasma diagnostics" Fusion Engineering and Design. 34-35,. 459-462 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] J.J.Barroso: "Operation of a 32 GHz gyrotron" Int.J.Infrared and Millimeter Waves. 18,11,. 2147-2160 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Pereyaslavets: "Improvements of mode converters for low-power excitation of gyrotron-type modes" Int.J.Electronics. 82・1. 107-115 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Ogawa: "A quasi-optical transmission line for plasma scattering measurements using a submillimeter wave gyrotron" Int.J.Electronics. 83・5. 635-644 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Ogawa: "Plasma scattering measurement using a submillimeter wave gyrotron (Gyrotron Fu II) as a power source" Fusion Engineering and Design. 34-35. 455-458 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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