Quasi-universality and scaling behaviour of three-wave X-ray interference in crystals: A novel way for the quantitative determination of X-ray reflection phases
✍ Scribed by Shih-Lin Chang; Yuri P Stetsko; Yi-Shan Huang; Chun-Hsiung Chao; Fuu-Jye Liang; Chun-Kuang Chen
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 138 KB
- Volume
- 264
- Category
- Article
- ISSN
- 0375-9601
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✦ Synopsis
A quasi-universal function describing the intensity distribution of three-wave X-ray interaction in single crystals is derived for the first time from X-ray dynamical theory under the Bethe approximation for inversion-symmetry related reflections. The intensity distributions of three-wave interference can be scaled down to this dimensionless universal function with proper scaling factors. A newly derived intensity-ratio formula provides a new way of analyzing three-wave diffraction data for direct quantitative determination of X-ray reflection phases of complex systems involving macromolecules.