A Method of the Determination of Lattice Constants from Single-Crystal X-ray Photographs

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概要

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• A graphical extrapolation method from single-crystal X-ray photographs was used by Farquhar and Lipson to determine accurate lattice constants of an orthorhombic crystal. An extension of the above method to the case using shorter wavelength radiations such as MoK_α is discussed. The difficulties due to the use of such radiations, i.e. low intensities of the Bragg reflections at high angles and a high background, are obviated with the help of a simple attachment to an ordinary single crystal oscillation camera. This technique is also useful for longer wavelength radiations such as CuK_α. The application is made to an orthorhombic crystal, sodium nickel double fluoride NaNiF_3. The present method will be particularly effective for the crystal with small lattice constants and/or with low symmetry. The method is compared with that using a back-reflection Weissenberg goniometer.

• 社団法人応用物理学会の論文
• 1968-09-05

著者

• Okazaki Atsushi

  Department Of Anesthesiology Juntendo University Shizuoka Hospital

• Iwanaga Hiroshi

  Department Of Physics Kyushu University:nagasaki University.

• Tsukuda Noboru

  Department Of Physics Kyushu University

• Kawaminami Masaru

  Department Of Physics College Of Liberal Arts Kagoshima University

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