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1990 Fiscal Year Final Research Report Summary

Solid State Spectroscopy by Synchrotron Radiation

Research Project

Project/Area Number 01460026
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 固体物性
Research InstitutionTohoku University

Principal Investigator

IKEZAWA Mikihiko  Tohoku Univ,. Res. Inst. Sci. Meas.. Professor, 科学計測研究所, 教授 (10004334)

Co-Investigator(Kenkyū-buntansha) SUZUKI Takashi  Tohoku Univ., Dep. of Phys. Assoc. Prof., 理学部, 助教授 (30004344)
ISHI Kimihiro  Tohoku Univ. Res. Inst. Sci. Meas. Research Assoc., 科学計測研究所, 助手 (00125494)
SHIBATA Yukio  Tohoku Univ. Res. Inst. Sci. Meas. Research Assoc., 科学計測研究所, 助手 (70006154)
OHSAKA Toshiaki  Tohoku Univ. Res. Inst. Sci. Meas. Assoc. Prof., 科学計測研究所, 助教授 (20152100)
Project Period (FY) 1989 – 1990
KeywordsSynchrotron radiation / Far-infrared radiation / Coherent synchrotron radiation / Millimeter wave / Solid state spectroscopy / Infrared Spectroscopy / Alkali silver halide / Ionic plasmon
Research Abstract

1. The far-infrared spectroscopy port at The Institute for Molecular Science has been utilized to measure absorption of Rb_2Agl_3 and K_2Agl_3 crystals of small sizes. Anisotropic absorption spectra with many fine structure have been obtained. In superionic crystals of RbAg_4I_5 and KAg_4I_5 increase of reflectivity has been observed in the millimeter wave region, which can be interpreted as being due to the ionic plasmon. 2. The electron beam accelerated by an S-band linac at The Laboratory of Nuclear Science, Tohoku University, was bent by a magnetic field of 0.2 T to emit intense coherent synchrotron radiation in the wavelength range from 0.2 to mm. A bunch form factor was calculated from the spectrum and the number of electron in one bunch, and the distribution function of electron in a bunch was obtained from it. It was nearly a Gaussian with the width of about 0.3 mm. It has been concluded that the distribution function has a sharp structure. Using the coherent radiation, reflectivity of RbAg_4I_5 crystal was observed and Drude like behavior has been confirmed in the millimeter wave region. A system for solid steate spectroscopy under magnetic field of 5 T is prepared by installing a superconducting magnet. 3. By bendng electron beams from an L-band linac at KUR Kyoto University, extremely intense coherent synchrotron radiation was observed in the millimeter wave region from 1 to 8 mm. Spectra of coherent Cherenkov radiation and wake fieled radiation were also observed for the first time, which had similar shapes to the spectrum of the synchrotron radiation.

  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] T.Nakzat et al.: "Observation of Coherent Synchrotron Radiation" Physical Review Letter. 63. 1245-1248 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Shibata et al.: "Coherent Synchrotron Radiation at Submillimeter and Millimeter Wavelengths" Research Report of Laboratory of Nuclear Science. 22. 151-164 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Nakazato et al.: "Coherent Synchrotron Radiation" Particle Accelerator. 33. 141-146 (1990)

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      「研究成果報告書概要(和文)」より
  • [Publications] 伊師 君弘 他: "コヒ-レント放射光のスペクトル" 核理研研究報告. 23. 131-139 (1990)

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      「研究成果報告書概要(和文)」より
  • [Publications] 池沢 幹彦 他: "コヒ-レント放射光" 日本物理学会誌. 45. 564-566 (1990)

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      「研究成果報告書概要(和文)」より
  • [Publications] Y.Shibata et al.: "Observation of Interference between Coherent Synchrotron Radiation from Separate Bunches" Research Report of Laboratory of Nucear Science. 23. 278-289 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 伊師 君弘 他: "コヒ-レント放射光分光装置の製作" 東北大学科学計測研究所報告. 39. 19-25 (1990)

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      「研究成果報告書概要(和文)」より
  • [Publications] Y.Shibata et al.: "Coherent Synchrotron Radiation at Submillimeter and Millimeter Wavelengths" Nucear Instruments and Method. (1991)

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      「研究成果報告書概要(和文)」より
  • [Publications] K.Ishi et al.: "Spectrum of Coherent Synchrotron Radiation" Physical Review A.(1991)

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      「研究成果報告書概要(和文)」より
  • [Publications] Y.Shibata et al.: "Observation of Coherent Synchrotron,Cherenkov and Wake Field Radiation at Millimeter Wavelengths Using an LーBand Linac"

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      「研究成果報告書概要(和文)」より
  • [Publications] T.Nanba et al.: "FarーInfrared and Millimeter Wave Spectroscopy by Synchrotron Radiation"

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      「研究成果報告書概要(和文)」より
  • [Publications] 足立 鉄男 他編集: "遠赤外線の最新技術とその応用" 技術情報センタ-, 308 (1991)

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      「研究成果報告書概要(和文)」より
  • [Publications] T. Nakazato, M. Oyamada, N. Niimura, S. Urasawa, O. Konno, A. Kagaya, R. Kato, T. Kamiyama, T. Torizuka, T. Nanba, K. Kondo, Y. Shibata, K. Ishi, T, Ohsaka and M. Ikezawa :"Observation of Coherent Synchrotron Radiation" Phys. Rev. Lett.63. 1245-1248 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Shibata, K. Ishi, T. Ohsaka, H. Mishiro, T. Takahashi, M. Ikezawa, Y. Kondo, T. Nakazato, M. Oyamada, N. Niimura, S. Urasawa, R. Kato and Y. Torizuka :"Coherent Synchrotron Radiation at Submillimeter and Millimeter Wavelengths." Res. Rep. Lab. Nucl. Sci. 22. 151-164 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Nakazato, M. Oyamada, N. Niimura, S. Urasawa, R. Kato, Y. Shibata, K. Ishi, T, Ohsaka, T. Takahashi, H. Mishiro, M. Ikezawa, Y. Kondo, T. Nanba and Y. Torizuka :"Coherent Synchrotron Radiation," Part. Accel. 33. 141-146 (1990)

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      「研究成果報告書概要(欧文)」より
  • [Publications] K. Ishi, Y. Shibata, T. Takahashi, H. Mishiro, T. Tsutaya, T. Ohsaka, Y. M. Ikezawa, Y. Kondo, M. Oyamada, N. Niimura, S. Urasawa, T. Nakazato, and R. Kato :"Coherent Synchrotron Radiation (in Japanese)" Res. Rep. Lab. Nucl. Sci. 23. 131-139 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Ikezawa :"Coherent Synchrotron Radiation (in Japanese)" Butsuri. 45. 564-566 (1990)

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      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Shibata, T. Takahashi, K. Ishi, F. Arai, H. Mishiro, T. Tsutaya, T. Ohsaka, M. Ikezawa, Y. Konndo, S. Urasawa, T. Nakazato, R. Kato, S. Niwano and M. Oyamada :"Observation of Interference between Coherent Synchrotron Radiation from Separate Bunches" Res. Rep. Lab. Nucl. Sci. 23. 279-289 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Ishi, Y. Shibata, T. Takahashi, T. Tsutaya, T. Ohsaka and M. Ikezawa :"Monochromator System for Observation of Coherent Synchrotron Radiation." Bull. Res. Inst. Scie. Meas.39. 19-25 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Shibata, K. Ishi, T. Ohsaka, H. Mishiro, T. Takahashi, M. Ikezawa, Y. Kondo, T. Nakazato, M. Oyamada, N. Niimura, S. Urasawa, R. Kato and Y. Torizuka :"Coherent Synchrotron Radiation at Submillimeter and Millimeter Wavelengths." Nucl. Instr. Meth.(1991)

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      「研究成果報告書概要(欧文)」より
  • [Publications] K. Ishi, Y. Shibata, T. Takahashi, H. Mishiro, T. Ohsaka, M. Ikezawa, Y. Kondo, T. Nakazato, S. Urasawa, N. Niimura, R. Kato, Y. Shibasaki and M. Oyamada :"Spectrum of Coherent Synchrotron Radiation," Phys. Rev. A. (1991)

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      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Shibata, K. Ishi, T. Takahashi, F. Arai, M. Ikezawa, K. Takami, T. Matsuyama, K. Kobayashi and Y. Fujita :"Observation of Coherent Synchrotron, Cherenkov and Wake Field Radiation at Millimeter Wavelengths Using an L-Band Linac."

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      「研究成果報告書概要(欧文)」より
  • [Publications] T. Nanba, M. Ikezawa, M. Watanabe, K. Fukui and H. Inokuchi :"Far-Infrared and Millimeter Wave Spectroscopy by Synchrotron Radiation,"

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Published: 1993-08-12  

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