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Diffrac-at Search: Search/Match Using Full Traces as Input

  • Julian Nusinovici (a1) and Marcus J. Winter (a2)

Abstract

The advantages of using the full trace as input for search/match rather than the traditional list of d/I values are emphasized. These advantages stem from the availability and the logical employment of the whole information of the diffractogram.

The two key features which enable successful identification of minor phases are discussed: (1) the reliable discrimination between background and weak lines and (2) by regarding the actual full widths of major lines as regions where weak lines can, potentially, he obscured.

The user friendliness of the. package will be presented: the graphical user interface, the high level of interactivity, and the speed of the search/match - now less than 8 seconds for searching the current whole ICDD database of 61,993 reference patterns when using an i486/66-based PC.

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References

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1. Caussin, P., Nusinovici, J., and Beard, D.W., Advances in X-Ray Analysis, Vol. 31, Plenum Publishing Corp., New York (1988).
2. Nusinovici, J. and Bertelmann, D., Advances in X-Ray Analysis, Vol. 36, Plenum Publishing Corp., New York (1993).
3. Jenkins, R., Holomany, M., Wong-Ng, W., On the Need for Users of the Powder Diffraction File to Update Regularly, Powder Diffraction 2:84 (1987).

Diffrac-at Search: Search/Match Using Full Traces as Input

  • Julian Nusinovici (a1) and Marcus J. Winter (a2)

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