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Linda Young, Director of Argonne's X-Ray Science Division, discusses upgrades to the lab's Advanced Photon Source.

Chemist Xiaoping Wang measures the stability of a platinum cathode electrocatalyst.

Nuclear engineer Laural Briggs reviews pressure distribution results from a 217-pin fuel assembly simulation. The simulation was computed by Argonne's Nek5000 large eddy simulation tool on the IBM Blue Gene/P Intrepid supercomputer.

Margaret Butler helps assemble the ORACLE computer with Oak Ridge National Laboratory engineer Rudolph Klein. In 1953, ORACLE was the world’s fastest computer. Designed at Argonne, it was constructed at Oak Ridge. Butler was a pioneering scientist who spent her career at the forefront of computer science and nuclear energy. Her spirit, drive, and analytical talents led to a lifetime of scientific contributions during an era when women were a rarity in a major scientific setting.

Argonne's Lynn Trahey prepares lithium-oxygen batteries for controlled environment testing.

Argonne nanoscientist Elena Rozhkova is studying ways to enlist nanoparticles to treat brain cancer. This nano-bio technology may eventually provide an alternative form of therapy that targets only cancer cells and does not affect normal living tissue.

Center for Nanoscale Materials Division Director Amanda Petford-Long (right) leads a tour of the CNM for Idaho National Laboratory Director John Grossenbacher (middle) and INL Deputy Director David Hill on February 18, 2010.

Pam Sydelko is the Deputy Associate Laboratory Director, Energy Sciences and Engineering.

Agronomist Cristina Negri collects poplar samples to measure the pollutants sucked from the earth.

Yuko Shiroyanagi (right) and Chuck Doose of the Accelerator Science Division prepare the magnetic measurement test stand. Testing ensures that the super-conducting undulator for the Advanced Photon Source upgrade will meet the high-precision requirements needed to generate the world's brightest X-rays above energies of 25 keV.

Pioneering Argonne computer scientist Jean F. Hall works on AVIDAC, Argonne's first digital computer, which began operation in January 1953. AVIDAC stands for "Argonne Version of the Institute's Digital Automatic Computer" and was based on the IAS architecture developed by John von Neumann.

Nanoscientist Tijana Rajh (far right) holds a strip of material created from titanium dioxide nanotubes. Her research team at Argonne's Center for Nanoscale Materials includes, from left, Hui Claire Xiong, Sanja Tepavcevic and Elena Shevchenko.

Argonne chemist Giselle Sandi (left) poses with the Honorable Dot Harris, Director of the Office of Economic Impact and Diversity at the U.S. Department of Energy, during Introduce a Girl to Engineering Day 2013 at Argonne.

A plaque outside Argonne’s Physics Building honors Maria Goeppert Mayer, winner of the 1963 Nobel Prize in Physics for her work to develop the shell model of the atomic nucleus. She kept her office in Argonne's Physics Building for the 15 years she worked at the laboratory.

Jennifer Salazar is a Coordinating Writer and Editor in Argonne’s Computing, Environment and Life Sciences directorate. "I've found that our researchers want to share what excites them and communicate it to others in the wider research community or to the public, and this offers a great environment for a writer," she said.

Ann Schlenker, Director of Argonne's Center for Transportation Research, welcomes President Obama to the podium during his visit to the lab on March 15, 2013.

Researcher Marta García Martinez (right) talks with an Argonne guest during a public lecture titled "Rise of the Super Smart Supercomputer."

Chemist Lin Chen is recognized internationally for her ground-breaking contributions in the excited-state structural studies using X-ray transient absorption spectroscopy. She was honored in 2012 as a fellow of the American Association for the Advancement of Science for her "contributions to understanding structural dynamics of molecular excited states with special emphasis on problems related to renewable energy."

J’Tia Taylor is a nonproliferation technical specialist in Argonne’s Nuclear Engineering division. "I work mainly in the area of export control, assessing technologies for their nonproliferation implications. I look at a lot of the emerging technologies presented to the U.S. government that are not necessarily on the market. My job is to analyze what the technology does and what it’s used for, assess how it can be used and determine its implications for weapons of mass destruction."