1. HPCAT, Geophysical Laboratory, Carnegie Institution of Washington, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
2. Center for X-Ray Optics, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, USA and X-Ray Optical Systems, Inc., 90 Fuller Road, Albany, New York 12205, USA
3. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
4. Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, District of Columbia 20015, USA