Anomalous Transmission in Bragg-Case Diffraction of X-Rays

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概要

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• Anomalous enhancement of a transmitted X-ray beam in Bragg-case diffraction is studied experimentally for the case that the direction of the diffracted beam comes close to the entrance surface of a target crystal. The intensity of the transmitted ray at μ_0t=10 amounts to 30% of the incident beam, which is extremely stronger in comparison with observations up to the present. In this experiment (220)CrK_<α1> diffraction from a silicon single crystal is used in the double crystal spectrometer arrangement. Theoretical explanation for the phenomenon is also tried with a method which is more rigorous than the conventional two-waves approximation. A fairly good agreement is obtained between the experimental and theoretical results both for the anomalously transmitted intensity, and for the difference of the incident angle at which the intensities of the anomalously transmitted and diffracted beams reach to a maximum respectively.

• 社団法人日本物理学会の論文
• 1971-10-05

著者

• Kishino Seigo

  Central Research Laboratory

関連論文

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• X-Ray Topographic Study of Lattice Defects Related with Degradation of GaAs-Ga_Al_xAs Double-Heterostructure Lasers : B-7: SEMICONDUCTOR LASERS (II)
• A New Technique of X-Ray Diffraction Microscopy of Scanning Type
• Enhanced Sensitivity of Anomalously Transmitted Intensity to Lattice Defects in Asymmetric Bragg-Case Diffraction of X-Rays
• Theoretical Considerations on Bragg-case Diffraction of X-rays at a Small Glancing Angle
• Characterization of Dislocations in β'-Gd_2(MoO_4)_3
• Determination of the Mole Fraction of GaP in GaAsP Single Crystal by A New X-Ray Diffraction Technique

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