Advanced Photon Source , Argonne

SXRF imaging and XANES analysis were made at the PNC/XOR beamline at the Advanced Photon Source, Argonne National Laboratory (Heald. et al 2007) using photon energies of 17.0 and 12.5 keV for SXRF imaging and 11.8 to 12.1 keV for XANES analysis. XANES analysis across the Au L3 edge used steps of 5 eV (from 11.82 - 11.89 keV), 0.5 eV (from 11.89-11.97 keV) and 0.07 k (from 11.97-12.1 keV) with a one second dwell per step. 

Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL... 

Figure 3.1 Two dimensional X ray powder pattern from hen egg white lysozyme (HEWL) crystallized from 1.25 m NaCl, pH 4.0, 0.05 m phthalate buffer taken at 20 keV as a 30 s image plate exposure on beamline 1 BM at the Advanced Photon Source, Argonne National Laboratory.

Stanford Synchrotron Radiation Laboratory Synchrotron Radiation Source, Daresbury Advanced Photon Source, Argonne National Synchrotron Light Source, Brookhaven Photon Factory, Tsukuba Super Photon Ring, Harima... 

Mark Rivers received his PhD in Geology and Geophysics from the University of California at Berkeley for studies of the ultrasonic properties of silicate melts. He is currently a Senior Scientist in the Department of Geophysical Sciences and Consortium for Advanced Radiation Sources (CARS) at the University of Chicago. He has been involved in synchrotron radiation research since 1984, is Co-Project Leader for the GeoSoilEnviroCARS beam lines (Sector 13) at the Advanced Photon Source (Argonne National Laboratory, 1L, USA). His current research interests include the application of computed microtomography to problems in earth and environmental sciences. 

Measurements using extended x-ray absorption fine-structure (EXAFS) spectroscopy were made on the insertion-device beam line of the Materials Research Collaborative Access Team (MRCAT) at the Advanced Photon Source, Argonne National Laboratory. Measurements were made in transmission mode with ionization chambers optimized for the maximum current with linear response ( 10 photons detected/sec). A cryogenically cooled double-crystal Si (111) monochromator with resolution (AE) better than 2.5 eV at 11.564 keV (Pt L3 edge) was used in conjunction with a Rh-coated mirror to minimize the presence of harmonics [9]. The integration time per data point was 1-3 sec, and three scans were obtained for each processing condition. 

Advanced Photon Source, Argonne National Laboratory,... 

The SALS instrument used for this work was developed with National Science Foundation support under NSF DMR-0108976. Simultaneous SAXS and WAXS experiments were carried out at National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by Department of Energy, Division of Materials Sciences and Chemical Sciences. The authors thank NIST for support of the use of beamline X27C. USAXS data was measured at beamline 33-ID at the Advanced Photon Source, Argonne National Laboratory. Use of the Advanced Photon Source is supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-Eng-38. We would also thank Dr. D. J. Lohse (ExxonMobil) for providing the copolymers. 

Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, USA Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA... 

A useful software for unified fits has been written by Jan Ilavsky at the Advanced Photon Source, Argonne National Laboratories. This software is available for download at http //usaxs.xor.aps.anl.gov/staff/ilavsky/irena.html. The code requires the Igor Pro program. A trial version of Igor Pro can be obtained at www.wavemetrics.com. 

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