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Users Week 2008
May 4-8, 2008

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- April 4: poster abstracts
- April 11: non-U.S. registration
- April 18: housing
- April 25: registration


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Past Meetings




Workshop 09

Scientific Applications of Nuclear Resonant Scattering

Thu. May 8, all day
Room A5000

Organizers: E. Ercan Alp, Wolfgang Sturhahn (Argonne National Laboratory), Clive Wynter (Nassau Community College)

To agenda > Updated 3/20/2008

This workshop will highlight the use of coherent and inelastic nuclear resonant scattering methods in understanding the dynamic behavior of materials that are of biological, chemical and geophysical importance.

Experimental and theoretical developments in the last decade have brought nuclear resonance scattering techniques to the scientific mainstream. In particular, in the areas of lattice dynamics and magnetism, the unique nature of synchrotron based techniques has enabled long-standing scientific issues to be addressed such as: (a) sound velocities of planetary materials under high pressure and temperature, (b) hitherto unobserved spin transitions in iron-bearing perovskites, (c) characteristics of the boson peak in a wide class of amorphous materials, and (d) quantitative characterization of vibrations of active sites in proteins and enzymes.

The development of unique experimental facilities that combine micro- focusing with pressure, temperature, and magnetic field, as well as in-situ deposition of monolayers, has allowed examination of interesting and ever-increasing parts of phase space. Combined with better theoretical understanding of the data based on density functional theory calculations, a very sophisticated set of tools have now been created. The number of different isotopes suitable for this method continue to increase, and now include Ta, Kr, Fe, Eu, Sm, Sn, Dy, K, I, and Sb.

This workshop will review the progress in the field, including contributions from the major synchrotron centers in Europe and Japan. The areas covered will be dynamics at the nanoscale, porphyrin model compounds, proteins and enzymes, and high-pressure applications in geophysics and condensed matter.

The workshop will be followed by a one-day symposium on Mossbauer Spectroscopy. The 5th International Nassau-Argonne Mössbauer Symposium will be held on May 9, 2008. By combining these two events, we hope to provide a wider audience for the synchrotron community.


9:00 - 9:05 Welcome
9:05 - 9:45 How big is an interface? - Phonon microscopy with atomic resolution
Ralf Roehlsberger, HASYLAB-DESY
9:45 - 10:15 Atomic vibrations in metal nanostructures
Beatriz Roldan Cuenya, University of Central Florida
10:15 - 10:30 Break
10:30 - 11:00 Vibrational Dynamics of Biomolecules: The Forest or the Trees?
Timothy Sage, Northeastern University
11:00 - 11:30 Probing the Chemistry of Hydrogen and Dinitrogen Processing Enzymes with NRVS
Stephen Cramer, University of California-Davis
11:30 - 12:00 Nuclear Resonance Spectroscopy Beamline 3-ID Upgrade
Wolfgang Sturhahn, Argonne National Laboratory
12:00 - 1:30 Lunch
1:30 - 2:00 Electronic spin transitions of iron in Earth's lower-mantle minerals
Jun-Fu Lin, Lawrence Livermore National Laboratory
2:00 - 2:30 High-pressure investigations of iron-bearing minerals using synchrotron Mössbauer spectroscopy
Jennifer Jackson, California Institute of Technology
2:30 - 3:00 Pressure-induced Magnetic Transition and Sound Velocities of Fe3C
Lili Gao, University of Illinois at Champaign-Urbana and Argonne National Laboratory
3:00 - 3:30 Break
3:30 - 4:00 The phonon DOS of Sn under high pressure
Elizabeth Tanis, University of Nevada at Las Vegas
4:00 - 4:30 Prospects for High Resolution Monochromators for Nuclear Resonant Scattering
Thomas Toellner, Argonne National Laboratory
4:30 - 5:00 Future Challenges and Opportunities with Nuclear Resonance Spectroscopy
Gopal Shenoy, Argonne National Laboratory
6:00 Dinner

Workshop participants may wish to attend the 5th Nassau-Argonne Mössbauer Symposium which will be held on Friday, May 9.


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