ICDD X-ray Diffraction Clinic - ICDD Rietveld Refinement & Indexing
Schedule
Mon Sep 23 2024 at 08:00 am to Fri Sep 27 2024 at 12:00 pm
UTC-04:00Location
The International Centre for Diffraction Data (ICDD) | Newtown Square, PA
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Powder pattern Indexing and Rietveld structural refinement techniques are complementary and are often combined to determine the structure of a material. Successful indexing of a powder pattern is considered strong evidence for phase purity.Indexing (with derived space group and lattice symmetry determinations) is considered a prelude to determining the crystal structure, and permits phase identification by lattice matching techniques. The Rietveld method is used to refine crystal structures and is perhaps best considered whole- pattern-fitting structure refinement, i.e., we must account not only for the crystal structure but also the instrumental resolution and diffraction physics effects (e.g., crystallite size and strain). The aim is to perform quantitative phase analysis and identification.
This clinic introduces the theory and formalisms of various indexing methods and structural refinement techniques. One unique aspect of this clinic is the extensive use of computer laboratory problem-solving and exercises that teach method development in a hands-on environment. We will use GSAS-II for the Rietveld laboratory work; Dicvol, Treor, and FULLPROF Suite and JADE interfaces will be used for indexing exercises.
The clinic format is a combination of morning lectures and afternoon computer lab exercises. Ample opportunity for individual student-faculty interaction exists throughout the week.
https://www.icdd.com/rietveld/
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Where is it happening?
The International Centre for Diffraction Data (ICDD), 12 Campus Blvd, Newtown Square, PA 19073-3200, United States,Newtown Square, PennsylvaniaEvent Location & Nearby Stays:
