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Abstract Details
Ultrafast X-ray Science
| Speaker | Philip Bucksbaum (University of Michigan) |
| Full Author List | Bucksbaum, Philip (1), (none) (0), (none) (0), (none) (0), (none) (0), (none) (0), (none) (0), (none) (0), (none) (0), (none) (0) |
| Affiliations | 1. Department of Physics, University of Michigan, Ann Arbor, MI, USA,
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| Category | Materials Science |
| Abstract |
No one has ever photographed a molecule undergoing a chemical reaction. Hard x-rays (E > 1 keV) can probe matter on the length scale of a chemical bond. Ultrafast lasers (t < 1 ps) can capture the quantum dynamics of single molecular vibrations or map chemical reactions as they evolve. The new Sub-Picosecond Pulse Source (SPPS) does both. This is the first accelerator to make x-ray pulses brief enough to capture atomic motion during chemical reactions, on the Angstrom scale of chemical bonds. Its 8 keV, 80 fs x-ray pulses are the brightest ultrafast x-rays in the world, and this is just the beginning. The planned X-ray free electron laser (LCLS) at SLAC will generate focused x-ray fields as strong as atomic binding fields, comparable to todays highest intensity lasers. These new tools are creating some special opportunities for new science, and also some challenges.
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