[local physicists] Colloquium Announcement 13/13/2012 (Dr. John Galayda)

[Malin, Delicia M.]

Old Dominion University
Department of Physics

Fall Colloquium Series

Tuesday November 13, 2012

"Synchrotron Radiation Sources and Free-Electron Laser - Research Tools of Extraordinary Versatility"


Dr. John Galayda
SLAC National Accelerator Laboratory



Synchrotron radiation is a key consideration in the design of electron or positron accelerators. As a tool for probing and imaging matter on the scales from Angstroms to centimeters, it has become an indispensable tool for many thousands of physicists, chemists, biologists and geologists. It has proven to be a powerful specialized tool for archaeologists and art historians as well. Free-electron lasers are specialized sources of synchrotron radiation that create and exploit the collective motion of electrons in accelerators to produce extremely short burst s of light so intense as to be usable for freeze-frame photography  of atoms and molecules under static conditions and amidst dynamic processes such  as the breaking of chemical bonds.

I will attempt to give a brief description of the properties of synchrotron radiation and some examples of experimental techniques they enable.  I will describe basic characteristics of accelerators optimized as light sources and free-electron lasers. I will also give an overview of light sources and free-electron lasers operating now and  in planning or construction worldwide



Presentation: OCNPS 200 @ 3:00 pm
Refreshments: Atrium @ 2:30 pm

More details at http://sci.odu.edu/physics/
All are Welcome!



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