Charles Troxel

SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource

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About

Charles Troxel is an experimental physicist and instrumentation specialist whose career has centered on the development of advanced X-ray diffraction and synchrotron measurement systems. Working primarily at the Stanford Synchrotron Radiation Lightsource (SSRL), Troxel has made significant contributions to the automation and high-throughput capabilities of powder diffraction facilities. His most influential work, a 2023 paper describing the robotic sample changer and general-purpose powder diffractometer at SSRL Beamline 2-1, has accumulated 19 citations and represents a landmark advance in enabling remote and automated materials characterization at scale. Building on this foundation, his 2025 study detailing a robot-automated flat plate X-ray diffraction setup further demonstrates his commitment to accelerating materials discovery through intelligent instrumentation design. Earlier in his career, Troxel contributed to industrial-scale trace impurity detection, developing a fixed-exit monochromator for mapping 300 mm silicon wafers with detection limits reaching 10⁸ atoms/cm². Across his body of work, Troxel exemplifies the critical role of instrument scientists in enabling cutting-edge materials research, bridging engineering innovation with the practical demands of synchrotron science and high-throughput structural screening.