46 citations · 182 across the 12 of their papers we have counts for
12 papers
Full-Field Nanoscale X-ray Diffraction-Contrast Imaging using Direct Detection
Elliot Kisiel, Ishwor Poudyal, Peter Kenesei +9
Recent developments in x-ray science provide methods to probe deeply embedded mesoscale grain structures and spatially resolve them using dark field x-ray microscopy (DFXM). Extend…
fairDMS: Rapid Model Training by Data and Model Reuse
Ahsan Ali, Hemant Sharma, Rajkumar Kettimuthu +7
Extracting actionable information rapidly from data produced by instruments such as the Linac Coherent Light Source (LCLS-II) and Advanced Photon Source Upgrade (APS-U) is becoming…
Temperature mapping of stacked silicon dies from x-ray diffraction intensities
Darshan Chalise, Peter Kenesei, Sarvjit D. Shastri +1
Increasing power densities in integrated circuits has led to an increased prevalence of thermal hotspots in integrated circuits. Tracking these thermal hotspots is imperative to pr…
Bridging Data Center AI Systems with Edge Computing for Actionable Information Retrieval
Zhengchun Liu, Ahsan Ali, Peter Kenesei +11
Extremely high data rates at modern synchrotron and X-ray free-electron laser light source beamlines motivate the use of machine learning methods for data reduction, feature detect…
Non-destructive determination of phase, size, and strain of individual grains in polycrystalline photovoltaic materials
Mariana Mar Lucas, Tiago Ramos, Peter S. Jørgensen +5
We demonstrate a non-destructive approach to provide structural properties on the grain level for the absorber layer of kesterite solar cells. Kesterite solar cells are notoriously…
BraggNN: Fast X-ray Bragg Peak Analysis Using Deep Learning
Zhengchun Liu, Hemant Sharma, Jun-Sang Park +5
X-ray diffraction based microscopy techniques such as High Energy Diffraction Microscopy rely on knowledge of the position of diffraction peaks with high precision. These positions…
High-energy coherent X-ray diffraction microscopy of polycrystal grains: first steps towards a multi-scale approach
Siddharth Maddali, Jun-Sang Park, Hemant Sharma +7
We present proof-of-concept imaging measurements of a polycrystalline material that integrate the elements of conventional high-energy X-ray diffraction microscopy with coherent di…
Phase retrieval for Bragg coherent diffraction imaging at high X-ray energies
Siddharth Maddali, Marc Allain, Wonsuk Cha +6
Coherent X-ray beams with energies keV can potentially enable three-dimensional imaging of atomic lattice distortion fields within individual crystallites in bulk polycry…
Sparse recovery of undersampled intensity patterns for coherent diffraction imaging at high X-ray energies
Siddharth Maddali, Irene Calvo-Almazan, Jonathan Almer +5
Coherent X-ray photons with energies higher than 50 keV offer new possibilities for imaging nanoscale lattice distortions in bulk crystalline materials using Bragg peak phase retri…
Microstructure analysis of bismuth absorbers for transition-edge sensor X-ray microcalorimeters
Daikang Yan, Ralu Divan, Lisa M. Gades +16
Transition-edge sensors (TESs) as microcalorimeters offer high resolving power, owning to their sharp response and low operating temperature. In the hard X-ray regime and above, th…
Eliminating the non-Gaussian spectral response of X-ray absorbers for transition-edge sensors
Daikang Yan, Ralu Divan, Lisa M. Gades +16
Transition-edge sensors (TES) as microcalorimeters for high-energy-resolution X-ray spectroscopy are often fabricated with an absorber made of materials with high Z (for X-ray stop…
Influences of Granular Constraints and Surface Effects on the Heterogeneity of Elastic, Superelastic, and Plastic Responses of Polycrystalline Shape Memory Alloys
Harshad M. Paranjape, Partha P. Paul, Hemant Sharma +5
Deformation heterogeneities within microstructures of polycrystalline shape memory alloys (SMAs) during superelastic stressing are studied using both experiments and simulations. I…