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MATCHDB - A Program for the Identification of Phases Using a Digitized Diffraction-Pattern Database

Published online by Cambridge University Press:  06 March 2019

Deane K. Smith,
Gerald G. Johnson Jr. and
Susan Q. Hoyle
Deane K. Smith
Affiliation:
Department of Geosciences and Materials Research Laboratory The Pennsylvania State University University Park, Pennsylvania, USA
Gerald G. Johnson Jr.
Affiliation:
Department of Geosciences and Materials Research Laboratory The Pennsylvania State University University Park, Pennsylvania, USA
Susan Q. Hoyle
Affiliation:
Department of Geosciences and Materials Research Laboratory The Pennsylvania State University University Park, Pennsylvania, USA
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Extract

The availability of automated powder diffractometers, APD, has revolutionized the collection of diffraction data and allowed many improvements in the analysis of these data. The biggest change is the ease of digitizing the diffraction trace rather than preparing it as a strip chart on paper from an analog recorder. When the data are collected properly, the trace is a digitized record of intensity versus 2θ. The trace is an accurate representation of the diffraction pattern containing the sample information along with the spectral and instrument aberrations.

Information

Type
VIII. Qualitative and Quantiative Phase Analysis by XRD
Information
Advances in X-Ray Analysis , Volume 34: Thirty-Ninth Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1990 , 1990, pp. 377 - 385
Copyright
Copyright © International Centre for Diffraction Data 1990

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References

Smith, D. K., Johnson, G. G. Jr., Kelton, M. J. and Anderson, C. A. (1989) Chemical Constraints in Quantitative X-ray Powder Diffraction for Mineral Analysis of the Sand/Silt Fraction of Sedimentary Rocks. Adv. x-ray Anal. 32, in press.Google Scholar
Smith, D. K., Holomany, M. A. and Zolensky, M. E. (1983) POWD10, A Fortran IV Program for Calculating X-ray Powder Diffraction Patterns. The Pennsylvania State University, University Park, PA, USA.Google Scholar
Smith, D. K. (1986) SIMUL: A Program for simulating Powder Diffraction Traces from d-I Data Sets. The Pennsylvania State University, University Park, PA, USA.Google Scholar
Smith, D. K., Johnson, G. G. Jr., Scheible, A., Wims, A. M., Johnson, J. L. and Ullmann, G. (1987) Quanitative X-ray Powder Diffraction Method using the Full Diffraction Pattern. Powd. Diff. 2, 73–77.Google Scholar