The TOPAS Intensive Course with hands-on training is held as a satellite workshop to the XXV Congress and General Assembly of the IUCr. The primary topic of this course is to teach participants the operation of TOPAS in Launch Mode (scripting mode) for structure determination and refinement using both Bragg diffraction as well as PDF data.

Registration is open to all students, post-docs and researchers working in any fields connected to crystallography using powder X-ray diffraction for structural investigation.Â

The number of participants is limited to 18. Application deadline: 1st March 2020Â

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The advanced course covers a wide range of topics including systematic errors, factors affecting intensities of

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The clinic covers instrumentation, specimen preparation, data acquisition and qualitative phase analysis

As in previous years, we will offer a combination of lectures covering the theoretical aspects of powder diffraction and Rietveld refinement, classroom-based "by-hand" problem sessions/tutorials and extensive hands-on practical sessions using a variety of modern software packages.

Topics to be covered will include:

• Data collection strategies for X-ray and neutron diffraction
• Constant wavelength and time of flight diffraction
• Modelling peak shapes
• Indexing powder patterns
• Rietveld, Le Bail and Pawley fitting methods
• X-ray and neutron combined Rietveld refinement
• Extended solids and molecular systems
• Restrained refinements
• Rigid body refinements

The European Powder Diffraction Conference, EPDIC, is a biannual conference dedicated to all aspects of the analysis of polycrystalline materials by diffraction methods. Each EPDIC has the aim to highlight the latest developments in powder diffraction including methodology, data analysis and instrumental advances. EPDICs traditionally bring together the scientists from institutes, universities and instrumentation companies to discuss the progress in academic and industrial research related to powder diffraction. 17th edition of EPDIC (EPDIC17) will take place in the town of Å ibenik, an emerging star of the Croatian Adriatic coast.

The European High Pressure Research Group (EHPRG) was established in the sixties of the last century to support a development of both the basic as well as the applied high pressure research by the annual meetings. To create a close contact of all the workers in scientific and technological high pressure disciplines, the wide scope of the EHPRG conferences is traditional and characteristic feature of these meetings. A relatively rapid increase of high pressure activities in almost all areas of Physics, Geosciences, Material Research, Chemistry and namely in Biosciences during the last decades demands a similarly rapid exchange of knowledge in high pressure research and technology.

Crystallography Rietveld & Databases.

Fundamental of crystallography and powder diffraction. Structural and diffraction file databases. X-ray pattern discovering, phase identification, purity control, semi-quantitative (RIR) and quantitative phase analysis (QPA). Use of the CIF files. Tutorial of the Rietveld refinement using mainly GSAS, EXPO and TOPAS applied on diphosphate, apatite, perovkite and cement examples. The end of the workshop is dedicated to solve personal questions.

You’re invited to the 77th Annual Pittsburgh Diffraction Conference at Oak Ridge National Laboratory (ORNL), which is located in Oak Ridge, Tennessee (near Knoxville). The conference will take place over three days and feature sessions focused on all areas of diffraction, from powders to protein crystals. Topics will include emerging technologies/techniques, Total scattering, Magnetic scattering, and Integrative Structural Biology. The Chung Soo Yoo Award, established by the Pittsburgh Diffraction Society to honor Dr. Yoo’s memory, and a $400 cash prize will be given to the graduate student having the best poster presentation at the conference.

Polymorphism in Rietveld approach and useful tools

Training school for under- and postgraduate students, young postdocs as well as senior scientists interested to be introduced to determination of crystal structure from powder diffraction data. This school introduces the theory of powder diffraction and the methods available for crystal structure determination and for microstructure analysis from powder diffraction data. One unique aspect of this school will be the extensive use of computer programs during hands-on sessions dedicated to educational exercises.

The European Powder Diffraction Conference, EPDIC, is a biannual conference dedicated to all aspects of the analysis of polycrystalline materials by diffraction methods. Each EPDIC has the aim to highlight the latest developments in powder diffraction including methodology, data analysis and instrumental advances. EPDICs traditionally bring together scientists from institutes, universities and instrumentation companies to discuss the progress in academic and industrial research related to powder diffraction. The 17th edition of EPDIC (EPDIC17) will take place in the town of Šibenik, an emerging star of the Croatian Adriatic coast.

The Latin America Summer School on Crystallography, Diffraction and Total Scattering Analysis for Advanced Materials and NanoScience.

Topics will cover ab initio structure solution by powder diffraction, quali- and quantitative phase analysis, microstructural analysis, total scattering techniques for nanomaterial characterization (structure, defects, size, morphology) by combining small- and wide-angle methods in reciprocal (Debye scattering equation) and real (Pair Distribution Function) space. Cases of applications to pharma and biomimetic materials, porous metal organic frameworks, nanosized metal, oxide, semi- and super-conductors will be presented.

Lectures on fundamentals, experimental, modelling and analytical aspects of the technique (2 days) will be combined with tutorial sessions (3 days) on data analysis, with the aid of the following programs: TOPAS, QUANTO, PDFGUI, DebUsSy,  PM2K e DIFFax+.

Advanced aspects of Synchrotron Radiation and its application to powder diffraction of functional materials will be introduced by Alexandre Gomes Carvalho, from the Brazilian Synchrotron in Campinas. Well renowned experts in the field of powder diffraction and programs, with high scientific reputation in the different topics and experience at European and Swiss Large Scale Faclities, will join the To.Sca.Lat, deliver lectures and take care of the tutorial sessions.

This workshop is focused to work with powder data in Jana2006. We will present examples on profile fitting, structure solution, and Rietveld refinement, including modulated structures and multiphases. The second day of the workshop we will present the newly implemented tools for determination of the crystallite size. This developement was made in collaboration with Philippe Deniard from university in Nantes, France, who is an invited speaker at this workshop.