Workshops
Wednesday, June 17, 2009
Radisson Hotel, Saskatoon, Saskatchewan, Canada
Workshop: Quantitative Analysis of X-ray Absorption Near-edge Spectra
Wednesday, June 17, 2009 (full day workshop)
Description:
X-ray Absorption Near-edge Spectra have been widely used to provide information on electronic structure and chemical speciation in diverse fields, with applications ranging from the bio-medical and environmental sciences to materials science. Until recently tools for quantitative analysis of these spectra have been lacking. The aim of the workshop is to review the current state-of-the-art methods for interpreting X-ray absorption near-edge spectroscopic data, and discuss possible future directions for enhancements of the available methods.
Organized by:
Graham George, University of Saskatchewan
Room:
Michelangelo A, Radisson Hotel
| Time | Speaker/Affiliation | Title |
|---|---|---|
| 9:00 | Graham George University of Saskatchewan |
Near-Edge Spectra as a Tool for Understanding Chemical and Biochemical Processes |
| 9:40 | Lars G.M. Pettersson Stockholm University |
Transition potential DFT modeling of XAS |
| 10:20 | Coffee | |
| 10:40 | John J. Rehr University of Washington |
Parameter free ab initio theory and Bayesian analysis of XANES |
| 11:20 | Frank de Groot Utrecht University |
The simulation of XAS, XPS and XMCD spectra with the CTM4XAS Charge Transfer Multiplet program |
| 12:00 | Lunch | |
| 1:00 | Teak Boyko University of Saskatchewan |
Modeling XANES of crystalline materials using WIEK2k |
| 1:40 | Serena DeBeer George Cornell University |
X-ray absorption and emission spectroscopies as probes of iron active sites in biology |
| 2:20 | Coffee | |
| 2:40 | Stephen Urquhart University of Saskatchewan |
Beyond Fingerprinting: Empirical and Computational Approaches for Understanding NEXAFS Spectra of Organic Molecules and Polymers |
| 3:20 | Josef Hormes | The simulation of XANES spectra: the questions I did not dare to ask |
| 4:00 | Frank de Groot Utrecht University |
CMT4XAS, hands-on tutorial |
| 5:00 | Workshop adjournment | |
Direct Program Related Inquiries to: Graham George
Workshop: Pump Probe Experiments Using a Synchrotron Source
Wednesday, June 17, 2009 (half day workshop)
Description:
Electronic structure, geometric structure, speciation and some dynamical studies investigated by the “continuous beam ” of synchrotron radiation have contributed to tremendous growth in science and technology. The development of fast and ultra fast optical lasers has shown that it is possible to obtain dynamical information on a limited range of materials. This workshop shows how synchrotron goes beyond the static structure to probe dynamics. The nanosecond time structure of third generation synchrotrons to the femtosecond of fourth generations view dynamical structures and show the new frontier of synchrotron radiation.
Organized by:
Ramaswami Sammynaiken, Saskatchewan Structural Sciences Centre, University of Saskatchewan
Room:
Michelangelo B, Radisson Hotel
| Time | Speaker/Affiliation | Title |
|---|---|---|
8:30 |
Richard A. Rosenberg, Argonne National Laboratory | Studies of dynamics in semiconductor nanostructures using time-resolved x-ray excited optical luminescence |
9:30 |
Lin X. Chen, Argonne National Laboratory, and Northwestern University | Laser-initiated Time-resolved X-ray Absorption Spectroscopy (LITR-XAS): A Decade Studies and Its Applications in Photochemistry and Solar Energy Conversion |
10:30 |
Coffee Break | |
11:00 |
Harald Redlin, HASYLAB | Pump-probe experiments at FLASH |
12:00 |
Group Discussion | |
12:30 |
Workshop Adjournment, Lunch | |
Direct Program Related Inquiries to: Ramaswami Sammynaiken
Workshop organizers would like to acknowledge Prospect Scientific and Systems for Research for their support:
Workshop: Dirt in the Beamline: Soft X-ray Absorption Techniques in Soil Science
Wednesday, June 17, 2009 (half day workshop)
Description:
X-ray Absorption Spectroscopy has become a valuable tool in the field of molecular environmental soil chemistry. Study of the near edge structure in the XAS of elements contained in both organic and inorganic soil components provides a powerful probe of the chemical bonding found in these materials. There are several challenges associated with measuring the XAS of soils and many of these challenges are common to other environmental samples. As many of the elements found in soil have core level binding energies in the soft x-ray energy range, samples have to be prepared for in-vacuum measurement. Signal quality is often a problem as soils contain many elements generating a large background signal. This workshop will explore some of the techniques that have been applied in the measurement of soft x-ray absorption spectra in soil. Instrumentation will be discussed and a plan for the development of hardware for the study of soil and other environmental samples will be formed.
Organized by:
Tom Regier, Canadian Light Source
Room:
Michelangelo C, Radisson Hotel
| Time | Speaker/Affiliation | Title |
|---|---|---|
13:00 |
Adam Gillespie, University of Saskatchewan |
Sample preparation, analytical considerations and data processing for C and N K-edge XANES of soil samples |
13:45 |
Peter Leinweber, University of Rostock |
N K-edge and P K- and L-edge XANES applied to soil and environmental problems |
14:30 |
Coffee Break | |
14:45 |
Derek Peak, University of Saskatchewan |
Soft x-ray studies in environmental oxyanion chemistry |
15:30 |
Tom Regier, Canadian Light Source |
Soft X-Ray Instrumentation for the Study of Environmental Samples |
16:15 |
Workshop Adjournment | |
Direct Program Related Inquiries to: Tom Regier
Last modified: 2012-01-19 17:01:16