Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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FOUNDATIONS
ADVANCES

Volume 25| Part 1

ISSN: 2053-2733

January 1969 issue

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Welcome to participants, International Meeting on Accurate Determination of X-ray Intensities and Structure Factors

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The early history of intensity measurements

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The intensity of reflexion of X-rays by crystals

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The significance of accurate structure factors

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Focusing monochromators

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Profile analysis in single-crystal diffractometry

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Present problems and future opportunities in precise intensity measurements with single-crystal X-ray diffractometers

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Electronic and mechanical sources of error in diffractometry

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Error evaluation versus `on line' correction

T. C. Furnas Jnr

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The geometry of integrated intensity measurement and errors due to non-monochromatic radiation

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Estimates of X-ray attenuation coefficients for the elements and their compounds

R. D. Deslattes

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The intensities of multiple diffraction effects

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The correction of measured structure factors for thermal diffuse scattering

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Theoretical corrections for extinction

W. H. Zachariasen

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Introduction to the dynamical theory of X-ray diffraction

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The determination of structure factors by means of intensity measurements from large single crystals

B. W. Batterman and H. Strock

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Accuracy of intensity measurements from large single crystals

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Debye–Waller factor and anomalous absorption (Ge: 293–5°K)

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The determination of structure factors by means of Pendellösung fringes

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The determination of structure factors from dynamical effects in electron diffraction

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An accurate absolute scattering factor for silicon

M. Hart and A. D. Milne

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Determination of the atom form factor by high-voltage electron diffraction

D. Watanabe, R. Uyeda and A. Fukuhara

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Experimental determination of the extinction factor by the use of polarized X-rays

S. Chandrasekhar, S. Ramaseshan and A. K. Singh

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Experimental absorption correction: results

R. Huber and G. Kopfmann

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X-ray photography as a means of accurate intensity measurement

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Measurements of intensities from X-ray photographs

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Rapid parallel measurement of X-ray reflexions from macromolecular crystals

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Indicators of accuracy in structure factor measurement

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Real crystals as a source of error

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Errors in the calculated structure factors caused by the free-atom form factor model

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Addition of higher cumulants to the crystallographic structure-factor equation: a generalized treatment for thermal-motion effects

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Comparison of X-ray and neutron diffraction structural results: a study in methods of error analysis

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Instruments and techniques required for accurate relative intensities from powder specimens

P. M. de Wolff and W. H. Sas

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Conversion of relative intensities to an absolute scale

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Assessment of accuracy in powder intensity measurement

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Current status of the IUCr powder intensity project

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Survey of results in the determination of X-ray intensities and structure factors for metals, alloys and covalent compounds

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Survey of results for ionic crystals and metallic oxides, carbides and nitrates

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Charge density and momentum density – a comparison between theory and experiment

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Accuracies of experimental structure factor values

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The role of intensity measurement projects

A. McL Mathieson

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International Meeting on Accurate Determination of X-ray Intensities and Structure Factors, concluding remarks

W. H. Zachariasen

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Advances

Recently published Advances articles are given below.

Interpretation of angular symmetries in electron nanodiffraction patterns from thin amorphous specimens. A. C. Y. Liu, G. R. Lumpkin, T. C. Petersen, J. Etheridge & L. Bourgeois (2015). Acta Cryst. A71, doi:10.1107/S2053273315011845.

Identification of inversion domains in KTiOPO₄ via resonant X-ray diffraction. F. Fabrizi, P. A. Thomas, G. Nisbet & S. P. Collins (2015). Acta Cryst. A71, 361-367.

Partial order among the 14 Bravais types of lattices: basics and applications. H. Grimmer (2015). Acta Cryst. A71, 143-149.

SHELXT - Integrated space-group and crystal-structure determination. G. M. Sheldrick (2015). Acta Cryst. A71, 3-8.

Special issues

Mathematical Crystallography

Bragg centennial issue

Laue centennial issue

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