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Gregory B. Stephenson

Argonne Distinguished Fellow

G. Brian Stephenson is an Argonne Distinguished Fellow in the Materials Science division.


G. Brian Stephenson’s research interests focus on developing and using synchrotron X-ray techniques to understand materials synthesis and processing. He has extensive experience in building and managing synchrotron X-ray instrumentation and beamlines, and was the recipient of an R&D 100 Award for his work on the Hard X-Ray Nanoprobe beamline at APS.

Stephenson joined the staff of Argonne’s Materials Science division in 1995. Previously he was a research staff member and group leader at IBM Research in Yorktown Heights, NY. He is co-author of more than 175 publications, a Fellow of the American Physical Society, and served as the Director of the Advanced Photon Source from 2011 to 2014. He received B.S. and M.S. degrees in 1978 from the Massachusetts Institute of Technology, and a Ph.D. in 1983 from Stanford University.