PDF Workshop

Real-Space Pair Distribution Function Methods

When: Saturday July 21^st, 2001

Where: American Crystallographic Association Annual meeting, Westin Bonaventure Hotel and Suites, Los Angeles, CA

Registration Deadline: June 1^st for preregistration discount. Space is limited so please preregister.

Information and Registration Documents: http://www.hwi.buffalo.edu/aca

Organizers: Simon Billinge (Michigan State U), Thomas Proffen (Los Alamos National Laboratory), Valeri Petkov (Michigan State U)

Contact Us: billinge@pa.msu.edu, tproffen@lanl.gov

Do you have samples with significant disorder or diffuse scattering but still want to know their structure? In that case, a real-space atomic pair distribution function (PDF) analysis may reveal new information. This workshop is to introduce the PDF technique to students and researchers. This is a straightforward powder diffraction technique which can be used to analyze laboratory x-ray data to obtain local structure information (though usually more is learned from a synchrotron or neutron measurement).

This will be a one-day hands-on workshop introducing the technique and teaching how to obtain and analyze diffraction data to obtain a real-space. Workshop attendees will receive a CD containing all the computer codes required to analyse the data to obtain the PDF and to carry out full-profile modeling. They will then work through a number of examples of data analysis and modeling on the computer. Attendees are encouraged to bring some of their own powder diffraction data from a sample of interest and we will also try and analyse it (it should be a computer file in two-column ascii format)