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Effects of resolution in real and reciprocal spaces from a 2D detector at a high-energy synchrotron beamline

Published online by Cambridge University Press:  02 January 2018

Andrea Bernasconi  and
Jonathan Wright
Andrea Bernasconi*
Affiliation:
Università di Pavia, Pavia, Italy
Jonathan Wright
Affiliation:
ESRF – The European Synchrotron, Grenoble, France
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

Different experimental conditions at a versatile high-energy beamline equipped with a two-dimensional detector have been compared for powder diffraction and pair distribution function (PDF) experiments. In particular, sample size and sample to detector distances have been evaluated on a standard sample, to evaluate their effects in both Q and real space. Two illustrative cases are also discussed. The average structure and local distortions in a BaTiO3 powder with 100 nm particle size show that spurious ripples in the PDF are suppressed by increased counting statistics. Effects of small amounts of a crystalline impurity phase on a SiO2.Al2O3.Na2O.CaO glass have been quantified.

Keywords

2D detectorpair distribution functionsynchrotronQ-resolution
Type
Technical Articles
Information
Powder Diffraction , Volume 33 , Issue 1 , March 2018 , pp. 11 - 20
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Copyright
Copyright © International Centre for Diffraction Data 2018 

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