Abstract
Mr. President, Members of the Society, and Guests: I am very pleased to introduce Rodney C. Ewing as the recipient of the 2015 Roebling Medal. I first met Rod when he became my post-doctoral advisor at the University of New Mexico in 1995. I have valued scientific collaborations and friendship with Rod over the years. Today, we are still working together, this time to manage the research portfolio of the Energy Frontier Research Center Materials Science of Actinides. While he was a Ph.D. student at Stanford four decades ago, Rod began his pioneering work on the effects of ionizing radiation on crystalline materials. At that time his studies focused on oxide minerals and the crystalline-to-amorphous phase transition caused by accumulation of radiation-induced damage from the decay of incorporated uranium. Rod developed these early studies into a career-long emphasis that has given science a sophisticated understanding of the response of a broad range of minerals and ceramics to ionizing radiation. Rod determined that there is a critical dose of radiation, after which a material becomes amorphous. He showed …
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