Johanna Nelson Weker

Lead Scientist

Group lead and principle investigator

Johanna Nelson Weker is a lead scientist at SLAC. Her group's research focuses on synchrotron-based X-ray characterization of materials and systems far from equilibrium. Her work spans a range of topics including electrochemical energy storage, catalysis, and additive manufacturing. In addition to a leading a vibrant research group, she helps run the transmission X-ray microscopy on beamline 6-2 at SSRL. Dr. Nelson Weker graduated in 2005 with a B.S. in mathematics and physics from Muhlenberg College, a small liberal arts college in Allentown, PA. In 2010, she received a Ph.D. in physics from Stony Brook University on Long Island, NY, where she studied Coherent Diffractive Imaging (CDI) with X-rays, a microscopy technique that eliminates the need for X-rays lenses. Since then, Dr. Nelson Weker has been working at SSRL, first as a postdoc using x-rays to study Li-ion batteries under operating conditions and now as a staff scientist in the Materials Science Division at SLAC.