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Indexing of Powder Diffraction Patterns

Published online by Cambridge University Press:  06 March 2019

P. M. de Wolff
P. M. de Wolff*
Affiliation:
Technische Hogeschool, Delft, Netherlands
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Abstract

Despite the advances of the electron mtcrodiflraction technique, the determination of unit cells of microcrystalline compounds still depends in many cases on the interpretation of the X-ray powder pattern. The feasibility of this interpretation depends strongly un the precision of the data, the present-day level of which is far from its physical limit. It could be improved by application of monochromators in diflractometry. Some possible methods are discussed. With regard to interpretation, a survey of existing methods is given (Lipson, Ito, de Wolff, Szoldos). Some of these techniques are suitable for computers, at least in the initial phase of the procedure. This is illustrated by application of a zone-finding program for the complete solution of a given pattern. Finally, the influence of impurities and other disturbing factors is discussed.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 6: Eleventh Annual Conference on Applications of X-ray Analysis, August 8-10, 1962 , 1962 , pp. 1 - 17
Copyright
Copyright © International Centre for Diffraction Data 1962

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References

1. Runge, C., Phys, Z. 18: 509, 1917.Google Scholar
2. Wever, F., Mitt. Kaner-Wilhelm-Inst. Eisenforsch. Düsseldorf 4: 67, 1923.Google Scholar
3. Ito, T., Nature 164: 755, 1949.Google Scholar
4.“Tables of Q as a Function of 2θ,” Acta Cryst. 12: 421, 1959.Google Scholar
5. Novak, C., Czechoslov. J. Phys. 4: 496, 1954.Google Scholar
6. de Wolff, P. M., Acta Cryst. 11: 664, 1958.Google Scholar
7. Zsoldos, L., Acta Cryst. 11: 835, 1958.Google Scholar
8. Vand, V., Acta Cryst. 1: 290, 1948.Google Scholar
9. Lipson, H., Acta Cryst. 2: 43, 1949.Google Scholar
10. Swanson, H. E., Nat. Bur. Standards Rept. 7521 on Standard X-ray Diffraction Patterns, June 1962.Google Scholar
11. de Wolff, P. M., Acta Cryst. 10: 590, 1957.Google Scholar
12. de Wolff, P. M., Acta Cryst. 14: 579, 1961.Google Scholar
13. de Wolff, P. M., Acta Cryst. 13: 835, 1960.Google Scholar
14. Hofmann, E. and Jagodzinski, H., Z. Metallk. 46: 601, 1955.Google Scholar