放射光波長変調回折法による位相決定 Phase Determination by the Wavelength-Modulated Diffraction Method

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著者

    • 岩崎 博 IWASAKI Hiroshi
    • 立命館大学理工学部光工学科 Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University

抄録

A new diffraction method for the determination of the phase of Bragg reflections is described. Diffracted intensity is recorded while changing continually the wavelength of radiation over a range in the vicinity of the absorption edge of an atom contained in a crystal. The intensity gradient with respect to the wavelength of the <I>hkl</I> reflection is shown to be in a simple relation to the real and imaginary parts of F (<I>hkl</I>) . The phase can be determined by solving two simultaneous linear equations with the intensity gradients measured at two wavelengths as input parameters. The situation is particularly simple when the crystal is centrosymmetric. The method presented here is free from the problem of intensity scaling encountered in other methods of phase determination.

収録刊行物

  • 日本結晶学会誌  

    日本結晶学会誌 41(6), 353-358, 1999-12-31 

    The Crystallographic Society of Japan

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各種コード

  • NII論文ID(NAID)
    10004674082
  • NII書誌ID(NCID)
    AN00188364
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03694585
  • NDL 記事登録ID
    4987852
  • NDL 雑誌分類
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL 請求記号
    Z15-138
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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