Alberta Powder Diffraction Workshop Alberta Powder Diffraction Workshop

Alberta Powder Diffraction Workshop

(laboratory X-ray, synchrotron and neutron, Wednesday 14th May to Friday 16th May 2008, University of Alberta, Edmonton, Canada)

Links to software and resources used in the workshop can be found in the Useful Links page.

Program

(All lectures and practicals occur in the Central Academic Building (CAB))

Wednesday 14th May 2008 - Chairs: Dipo Omotoso and Douglas Ivey

9:00 - 9:45

Introduction to Powder Diffraction and Powder Diffraction Hardware Lachlan Cranswick

9:45 - 10:30

Introduction to the basics of crystallography - Ian Swainson

10:30 - 11:15

Break

11:15 - 12:00

Sample preparation, data collection considerations and phase identification using powder X-ray diffraction - Lachlan Cranswick

12:00 - 12:45

Introduction to Powder Profile Refinement Bob Von Dreele

12:45 - 2:30

Lunch

2:30 - 5:30

Practical Sessions

6:00

Pizza and Beer dinner in campus pub

Thursday 15th May 2008 - Chairs: Dipo Omotoso and Douglas Ivey

9:00 - 9:45

Rietveld Refinement with GSAS (Part 1) Bob Von Dreele

9:45 - 10:00

Web and Internet based crystallographic and powder diffraction resources Lachlan Cranswick

10:00 - 10:45

Rietveld Refinement with GSAS (Part 2) Bob Von Dreele

10:45 - 11:30

Break

11:30 - 12:15

Synchrotron and Neutron Experiments - Ian Swainson

12:15 - 1:00pm

Freely available powder diffraction Software - Lachlan Cranswick

1:00pm - 2:30pm

Lunch

2:30pm - 5:30pm

Practical Sessions

6:00pm

Friday 16th May 2008, Chairs: Dipo Omotoso and Douglas Ivey

Clay mineral quantification using the Rietveld method

9:00 - 9:45

Introduction - Reinhard Kleeberg

  • Structure types of clay minerals
  • Identification of mineral groups, subgroups and species
  • Order-disorder phenomena in clay mineral structures
  • Diffraction effects from layered structures

9:45 - 10:30

Clays and Rietveld? - Reinhard Kleeberg

  • Profile modeling in the BGMN Rietveld program
  • Modeling of diffraction patterns of clay minerals within the Rietveld method
  • Turbostratic stacking and the single layer approach

10:30 - 11:15

Break

11:15-12:30

Problems of clay mineral quantification - Reinhard Kleeberg

  • Problems of clay mineral quantification
  • Parameter correlation of similar structures
  • Identification of minor phases

12:30 - 2:00

Lunch

2:30 - 6:00

Practical Sessions - Hands-on tutorial BGMN

  • Calculating an instrumental profile
  • Simple two-phase mixture
  • Mixture of clay minerals
  • Analyzing a natural sample (incomplete identification)

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