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A development of absorption spectra for wide energy region by inelastic x-ray scattering

Research Project

Project/Area Number 10554029
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Physical chemistry
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

UDAGAWA Yasuo  Res. Inst. Scientific Measurements, Tohoku University, Prof., 科学計測研究所, 教授 (00004458)

Co-Investigator(Kenkyū-buntansha) MUNEKAWA Shigeru  Rigaku Co., Researcher, 主任研究員
WATANABE Noburo  Res. Inst. Scientific Measurements, Tohoku University, Assistant, 科学計測研究所, 助手 (90312660)
林 久史  東北大学, 科学計測研究所, 助手 (60250833)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥12,100,000 (Direct Cost: ¥12,100,000)
Fiscal Year 1999: ¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1998: ¥4,300,000 (Direct Cost: ¥4,300,000)
Keywordsinelastic x-ray scattering / water / reflectivity / absorption coefficient / electron correlation / 真空紫外スペクトル
Research Abstract

Optical properties such as absorption coefficient and reflectivity are no only one of the most fundamental properties of matters but also are related to other properties like dielectric constants and van der Waals force. In particular, interactions of the material with x-rays and charged particles are also described by optical data, as long as they are known over wide energy range. Because of various experimental difficulties however, measurements of optical constants in the vacuum-uv and soft x-ray region are scarce, and are practically nonexistence about liquids. In this project an attempt is made to establish a new spectroscopic method that makes it possible to obtain spectra of various liquids over wide energy region by the use of inelastic scattering of hard x-rays.
A new spectrometer which features versatility has been constructed with the present grant-in-aid, and it was sent to synchrotron radiation facilities (Photon Factory at Tsukuba and National Synchrotron Light Source at Brookhaven, U.S.A.). Measurements were carried out there and we have succeeded in obtaining inelastic x-ray scattering spectra of several liquids including water between 0 and 200 eV, which can be transformed to optical constants in the vacuum uv region. The data on water makes a basis of radiation chemistry, and a review paper has been written to the Journal of Japanese Radiation Chemistry Society.
In addition, x-ray structure factor can also be deduced from momentum-transfer dependence of inelastic x-ray scattering spectra, which is closely related with electron correlation. The results have been analyzed in terms of the configuration interaction method as well as newly developed coupled cluster method.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] N.Watanabe,H.Hayashi and Y.Udagawa: "Inelastic x-ray scattering study on molecular liquids"Journal of Physics and Chemistry of Solids. 61. 407-409 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N.Watanabe,S.Ten-no,S.Pal,S.Iwata and Y.Udagawa: "Size-extensive calculations of static structure factors from the coupled cluster singles and doubles model"J. Chem. Phys.. 111. 827-832 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N.Watanabe,H.Hayashi,Y.Udagawa,S.Ten-no and S.Iwata: "Static structure factor and electron correlation effects studied by inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 4545-4553 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Hayashi,N.Watanabe,Y.Udagawa and C.-C.Kao: "Optical spectra of liquid water in vacuum UV region by means of inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 823-825 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Hayashi,N.Watanabe and Y.Udagawa: "Inelastic X-ray Scattering in Molecular Liquids and Electron Correlation Effects"J. Synchrotron Rad.. 5. 1052-1054 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Watanabe, H. Hayashi and Y. Udagawa: "Inelastic x-ray scattering study on molecular liquids"Journal of Physics and Chemistry of Solids. 61. 407-409 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Noboru Watanabe, Seiichiro Ten-no, Sourav Pal, Suehiro Iwata, and Yasuo Udagawa: "Size-extensive calculations of static structure factors from the coupled cluster singles and doubles model"J. Chem. Phys.. 111. 827-832 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Noboru Watanabe, Hisashi Hayashi, Yasuo Udagawa, Seichiro Ten-no, and Suehiro Iwata: "Static structure factor and electron correlation effects studied b inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 4545-4553 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hisashi Hayashi, Noboru Watanabe, Yasuo Udagawa, and C.-C. Kao: "Optical spectra of liquid water in vacuum UV region by means of inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 823-825 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hisashi Hayashi, Noboru Watanabe, and Yasuo Udagawa: "Inelastic X-ray Scattering in Molecular Liquids and Electron Correlation Effects"J. Synchrotron Rad.. 5. 1052-1054 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N.Watanabe,H.Hayashi and Y.Udagawa: "Inelastic x-ray scattering study on molecular liquids"Journal of Physics and Chemistry of Solids. 61. 407-409 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Watanabe,S.Ten-no.,S.Pal,S.Iwata,and Y.Udagawa: "Size-extensive calculations of static structure factors from the coupled cluster singles and doubles model"J. Chem. Phys.. 111. 827-832 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Watanabe,H.Hayashi,Y.Udagawa,S.Ten-no.and S.Iwata: "Static structure actor and electron correlation effects studied by inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 4545-4553 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Hayashi,N.Watanabe,Y.Udagawa,and C.-C.Kao: "Optical spectra of liquid water in vacuum UV region by means of Inelastic x-ray scattering spectroscopy"J. Chem. Phys.. 108. 823-825 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Hayashi,N.Watanabe,and Y.Udagawa: "Inelastic X-ray Scattermg in Molecular Liquids and Electron Correlation Effects"J. Synchrotron Rad.. 5. 1052-1054 (199)

    • Related Report
      1999 Annual Research Report
  • [Publications] Noboru Watanabe etal.: "Inelastic X-ray Scattering Study on Molecular Liquids" J.Phys.Chem.Solids. (印刷中).

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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