Dynamic Compression Sector (DCS@APS) User Workshop
January 19-20, 2012
Advanced Photon Source, Argonne National Laboratory, Argonne, IL

We invite you to participate in the DCS@APS User Workshop to be held at the Advanced Photon Source on January 19-20, 2012, to explore the broad spectrum of scientific challenges and opportunities afforded by the emerging integration of dynamic compression platforms and advanced x-ray capabilities at synchrotron-radiation scientific user facilities.  Topics of discussions at the DCS@APS User Workshop will include the science opportunities and associated capability gaps in structural changes and phase transformations in condensed matter; deformation processes and fracture dynamics in materials; dynamics of chemical reactions; and time-resolved dynamic processes in materials beyond those generated by compression.  The workshop will also consider needed instrumentation to realize this science, including diagnostics and x-ray optics; and explore governance models and user experience considerations for the DCS facility.

We sincerely hope that you will be able to attend.  Registration details and additional information may be found on the DCS@APS User Workshop website: http://www.dcs-aps.wsu.edu

Sincerely,

The DCS@APS User Workshop Organizing Committee:

John Sarrao (LANL)
Christian Mailhiot (LLNL)
Chi-Chang Kao (SSRL)
Denny Mills (APS)
Yogi Gupta (WSU)

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DCS@APS Background

To examine and understand dynamic compression-induced materials processes at the atomic scale, the DOE/National Nuclear Security Administration (NNSA) is supporting the establishment of the Dynamic Compression Sector (DCS) at the Advanced Photon Source (APS) of the Argonne National Laboratory. By integrating a broad range of dynamic compression platforms and tunable high-energy x-rays, the DCS@APS experimental capability will significantly advance the state-of-the-art in the field of dynamic compression of condensed matter.

Understanding the response of condensed matter systems under extreme conditions at the atomistic level is central to advance numerous fields of fundamental science and modern technology.  In particular, dynamic compression experiments are both unique and versatile in their ability to produce and probe a broad range of extreme conditions on very short time scales.  Dynamic compression platforms now have the ability and the flexibility to achieve extreme thermo-mechanical conditions (very large compressions, high temperatures, and large deformations) on very short time scales (ps to μs).  Concurrently, experimental advances at synchrotron-radiation user facilities can provide bright, high-energy, and tunable x-rays to probe dynamic phenomena in real time with unprecedented temporal and spatial resolutions.  By coupling dynamic compression experiments with high-energy, tunable x-ray probes, there is now the exciting scientific opportunity to achieve time-resolved, atomistic-level investigations of condensed matter changes “on-the-fly” or as they occur.

In parallel with experimental advances, ever-increasing computational capabilities now enable longer simulations of larger physical systems with unsurpassed physical fidelity.  While the surge in high-performance computing extends the length scales available for numerical simulations, extending the time scales of such simulations to experimentally observable processes in materials is an ongoing challenge and remains an active area of research.  Hence, an overarching goal of dynamic compression experiments is to obtain measurements at the time and length scales of numerical simulations and to bridge this knowledge gap between simulations and experiments.