Commission on Powder Diffraction

Projects

Powder CIF applications and development

An initiative of the Commission starting in the 2021-23 'triennium' is the promotion of good practice in the use of the powder CIF (pdCIF) standard, including validation and analysis tools. Some of the results of those efforts will be available from this web site.

Webpage here


'Hands-on' self-test materials for structure determination of organics from powder diffraction data

Webpage here


CPD poster

Information posters on the history and activities of the IUCr Commission for Powder Diffraction were produced for the triennia 2008-2011 and 2011-2014.

Activities 2008-2011 Activities 2011-2014


Size-strain round robin

Concluded:

Click here for the Size-Strain RR webpage

As Reported in:

D. Balzar, N. Audebrand, M. Daymond, A. Fitch, A. Hewat, J.I. Langford, A. Le Bail, D. Louër, O. Masson, C.N. McCowan, N.C. Popa, P.W. Stephens, B. Toby, "Size-strain line-broadening analysis of the ceria round robin sample", J. Appl Cryst. (2004), 37, 911-924


Quantitative phase analysis round robin

Concluded:

Click here for the QARR Webpage

As Reported in:

I.C. Madsen, N.V.Y. Scarlet, L.M.D. Cranswick, T. Lwin, "Outcomes of the International Union of Crystallography Commission on Powder Diffraction Round Robin on Quantitative Phase Analysis: samples 1a to 1h", J. Appl Cryst. (2001), 34, 409-426

N.V.Y. Scarlet, I.C. Madsen, L.M.D. Cranswick, T. Lwin, E. Groleau, G. Stephenson, M. Aylmore, N. Agron-Olshina, "Outcomes of the International Union of Crystallography Commission on Powder Diffraction Round Robin on Quantitative Phase Analysis: samples 2, 3 and 4, synthetic bauxite, natural granodiorite and pharmaceuticals", J. Appl Cryst. (2002), 35, 383-400


Rietveld refinement guidelines

Concluded:

As Reported in:

L.B. McCusker, R.B. Von Dreele, D.E. Cox, D. Louër, P. Scardi, "Rietveld Refinement Guidelines", J. Appl. Cryst. (1999), 32, 36-50


Rietveld structure refinement round robin

Concluded:

As Reported in:

R.J. Hill, "Rietveld refinement round robin. I. Analysis of standard X-ray and neutron data for PbSO4" (1992), J. Appl Cryst. 25, 589-610

R.J. Hill and L.M.D. Cranswick, "International Union of Crystallography Commission on Powder Diffraction. Rietveld Refinement Round Robin. II. Analysis of Monoclinic ZrO2", J. Appl. Cryst. (1994), 27, 802-844


These pages are maintained by the Commission Last updated: 16 Mar 2022