Operando and in-situ experiments extend powder X-ray diffraction (PXRD) to materials that evolve during experiments, producing series of hundreds or thousands of patterns. Such series are commonly refined one pattern at a time, so weak signals give noisy structural trajectories. Parametric refinement instead fits a sha...
Xiang-Yu Yin, Nina Andrejevic, Hemant Sharma et al.· 0 citations
Agentic artificial intelligence (AI) is moving beyond research demonstrations toward production use at scientific user facilities, including light sources, neutron sources, nanoscience centers, and autonomous laboratories. Its scientific value extends beyond increasing throughput. Agents can perform repeatable tasks in...
Ming Du, Xiang-Yu Yin, Michael H. Prince et al.· 0 citations
This work presents APEXA, a deployed framework coordinating 61 tools for synchrotron data reduction, and introduces APEXA-Bench, 58 facility tasks organized by scientific correctness and physical consequence.
Pawan K. Tripathi, Hemant Sharma, Andrew Chuang et al.· 0 citations
High-Energy Diffraction Microscopy (HEDM) recovers crystallographic orientation, strain, and grain position from rotating-crystal X-ray diffraction patterns. Existing forward models in far-field (FF), near-field (NF), and point-focused (pf) HEDM are not differentiable, which forecloses gradient-based joint parameter re...
Hemant Sharma, Nina Andrejevic, Simon Zhang et al.· 1 citation
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