Judging quality: Catching common refinement problems
- Discuss how to find problems in Rietveld fits. This talk explores the weakness of R-factors and the importance of looking at plots of the observed and computed patterns.
- Format: PDF slides or a RealPlayer video of the slides with accompanying audio.
- What are [some of] the Rietveld R-factors and what do they measure
- Graphical analysis of Rietveld fits
- Background problems
- Unindexed peaks (lowered symmetry or 2nd phase?)
- Poor fit of peak shapes
- Refereeing: using & plotting fits from CIF
- Slides (as PDF file)
- FlashMovie presentation with index (best viewed with 1024x768 or better screen resolution)
FlashMovie file (800x600 pixels)
- APS Powder diffraction crystallography instructional materials overview
Last modified: Sat Dec 9 10:21:47 CST 2006