HPCAT Workshops

Workshop on high-pressure multigrain crystallography

October 29 - 30, 2016 - Hosted by High Pressure Collaborative Access Team (HPCAT)
Location:  Building 401, APS E1100-E1200, at Argonne National Laboratoy, Argonne IL 60439

With the developments in micro-beam technology many traditional high-pressure powder samples may contain only tens or hundreds of multiple grains, displaying “spotty” poor powder patterns in diffraction images. As a result, polycrystalline structural refinement for ultrahigh-pressure samples becomes increasingly difficult and the results could be uncertain. On the other hand, successful examples of growth and preservation of micron-sized single crystal samples above 100 GPa are challenging and extremely rare. The recently developed “multigrain crystallography” treats multiple grains as a collection of single crystallites, obtaining diffraction data from a few to hundreds of single crystallites simultaneously. The multigrain approach provides great promise for structure refinement of miniature samples at ultrahigh pressures. This workshop will bring scientists from multiple disciplinary fields to (1) discuss the current status of multigrain crystallography, (2) review the currently used algorithms and various experimental procedures at synchrotron facilities, and (3) identify the challenges and opportunities of multigrain crystallography in high pressure research. Both the diffraction techniques using monochromatic and polychromatic beams will be discussed in this two-day forum.

Confirmed speakers

J. Bernier, Lawrence Livermore National Laboratory
E. Bykova, University of Bayreuth
P. Dera, University of Hawaii at Manoa
B. Lavina, University of Nevada, Las Vegas
M. Meyer, Rigaku Oxford Diffraction
D. Popov, HPCAT, Carnegie Institution of Washington
H.F. Poulsen, Technical University of Denmark
M. Ruf, Bruker Corporation
R.M. Suter, Carnegie Melon University
H. Sharma, Argonne National Laboratory, APS, X-ray Science Division
G. Shen, HPCAT, Carnegie Institution of Washington
J. Tischler, Argonne National Laboratory, APS, X-ray Science Division
L. Zhang, Center for High Pressure Science & Technology Advanced Research


Organizing Committee

Dmitry Popov (HPCAT), dpopov@carnegiescience.edu
Guoyin Shen (HPCAT), gshen@carnegiescience.edu
Stas Sinogeikin (HPCAT), ssinogeikin@carnegiescience.edu
Przemek Dera (University of Hawaii at Manoa), pdera@hawaii.edu

Local Administrator -Freda Humble, (630) 252-0479, fhumble@carnegiescience.edu

For more information, see the Workshop and registration WEBSITE








Past Workshops

High-pressure time-resolved synchrotron techniques, September 25-27, 2014

Paris-Edinburgh Cell Workshop, May 23 - 24, 2013

Advances in Matter Under Extreme Conditions, October 10-12, 2012