Materials Science and Engineering Colloquium
Date: February 13, 2015 from 11:00 am to 12:00 pm EST
Location: Columbia University
Morningside Campus
S.W. Mudd
Room 214
Contact: For further information regarding this event, please contact APAM Department by sending email to seasinfo.apam@columbia.edu or by calling 212-854-4457.
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Dr. Susanne M. Lee
Senior X-ray Detector Engineer, Inspection Technologies - Radiography
General Electric Measurement and Control, Troy, NY

 "The Materials Science of X-ray Photonics and their Potential Role in Medical X-ray Dark Field Imaging"

X-ray dark field imaging (XDFI) is a new technique that has the potential to perform virtual biopsies in less than 1 hour, revolutionizing the current 12-48 hour histology practice of sectioning, fixing, staining, and optically imaging up to a thousand tissue slices. Despite this, XDFI cannot be employed anywhere other than synchrotrons due to the paucity of photon flux emitted by commercial medical x-ray sources. At GE Global Research, an ultra-high energy portable photonic device was invented that has the potential to emit coherent monochromatic X-rays with energies up to 200keV and the possibility to advance XDFI to a commercial product. This presentation will encompass the unusual physics of the device, the materials science issues that result from that physics as well as those encountered during fabrication, and evidence of the world's first stimulated x-ray emission from a multi-pass solid state structure. Additionally, why commercializing XDFI would be so game-changing in treating life-altering diseases will be demonstrated with results from breast tumor histology.

Host: I.C. Noyan