Publications
Publications by Year
2026
[1]
R. Goldman, A. Bartnik, and J. Maxson, Building a Start-to-End Model of the CESR Injector Linac, Preprint (2026).
[2]
M. A. Fazio, M. Martínez-Ramón, S. S. Güitron, M. Babzien, M. Fedurin, J. Li, M. Palmer, and S. S. Biedroń, Unsupervised anomaly detection in MeV ultrafast electron diffraction, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1088, 171454 (2026).
[3]
B. Schaap, M. Lenz, and P. Musumeci, Observation of a relativistic analog of the Brewster effect in electron-photon scattering, Nat Commun (2026).
[4]
K. P. Mondal, M. Gaowei, E. Echeverria, K. Evans-Lutterodt, S. Karkare, J. Maxson, C. Pennington, and J. Smedley, Epitaxial growth of cesium potassium antimonide photocathode, APL Mater. 14, 071113 (2026).
[5]
C. Zhang, E. Echeverria, A. Flint, W. H. Li, C. M. Pierce, A. Galdi, C. Pennington, A. Bartnik, I. Bazarov, and J. Maxson, Experimental reconstruction of source 4D phase space without prior knowledge of transfer matrix, Phys. Rev. Accel. Beams 29, 074501 (2026).
[6]
T. Wu, T. Idso, S. Karkare, and T. Arias, Photoemission from Semi-Infinite Crystals: An \emph{Ab Initio} Scattering-State Approach, Preprint (2026).
[7]
S. E. Zeltmann, D. Ma, and D. A. Muller, Improving Low-Dose Three-Dimensional Imaging with Tilt-Corrected 4D-STEM, Microanal 32, ozag053.447 (2026).
[8]
D. Ma, S. E. Zeltmann, and D. A. Muller, Why Ptychography Works Better with Aberrations, Microanal 32, ozag053.053 (2026).
[9]
D. Franklin and O. Chubenko, Stoichiometric Variation’s Influence on Photoemission for Alkali Antimonide Semiconductors, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (2026).
[10]
N. Sitaraman, Z. Baraissov, A. Grassl, H. Yang, D. Tong, D. Muller, and M. Liepe, Synthesis and Characterization of Atomically-Sharp Superconductor-Dielectric Interface, Preprint (2026).
[11]
O. Chubenko, S. Karkare, J. Grames, and M. Fuchs, Beam Sources for 10 TeV Wakefield Collider, Preprint (2026).
[12]
J. Phillips et al., Low-Emittance, Low-Charge Optimization of the Argonne Wakefield Accelerator for the Nanopatterned Microbunching Experiment, in Proceedings of the 17th International Particle Accelerator Conference (IPAC ’26), Deauville, France (JACoW, Geneva, Switzerland, 2026).
[13]
J. W. Phillips, B. Naranjo, J. B. Rosenzweig, P. Alva Rosa, J. A. Phillips, D. McCormick, D. Storey, and J. Cruz, Magnetic Field Reconstruction from Sparse Measurements for Complex Geometries, in Proceedings of the 17th International Particle Accelerator Conference (IPAC ’26), Deauville, France (JACoW, Geneva, Switzerland, 2026).
[14]
C. A. Pennington, G. Lawler, F. Bosco, A. Bartnik, J. Jimenez-Zepeda, S. Tantawi, J. Maxson, and J. Rosenzweig, A Compact Ultra-High Brightness Cryogenic C-Band RF Gun for Ultra-Fast Electron Diffraction Applications, in Proceedings of the 17th International Particle Accelerator Conference (IPAC ’26), Deauville, France (JACoW, Geneva, Switzerland, 2026).
[15]
D. Ma, G. Li, D. A. Muller, and S. E. Zeltmann, Information in 4D-STEM: Where it is, and How to Use it, Ultramicroscopy 283, 114351 (2026).
[16]
S. Chaudhari et al., Active-learning inspired ab initio theory-experiment loop approach for management of material defects: Application to superconducting qubits, Phys. Rev. Materials 10, L040801 (2026).
[17]
C. Méndez, N. Sitaraman, M. Liepe, and T. A. Arias, Ab initio theory of eliminating surface oxides of superconductors with noble-metal encapsulation, Phys. Rev. Appl. 25, L041004 (2026).
[18]
T. Wu and T. Arias, First-Principles Optical Response and Photoemission Engineering in 2D Materials and van Der Waals Heterostructures, in 2026 MRS Spring Meeting and Exhibit, Honolulu HI, USA (Materials Research Society, 2026).
[19]
J. Maxson, Atomically Flat Photocathodes in Extreme Fields, in Proceedings of the 2026 IEEE International Vacuum Electronics Conference (IVEC), Monterey, CA (IEEE, 2026).
[20]
S. Karkare, Spatiotemporal Control of Electron Emission Using Nanoscale Photoemitters with Integrated Nanophotonics and Plasmonics, in Proceedings of 2026 IEEE International Vacuum Electronics Conference (IVEC) Monterey, CA (JACOW, Geneva, Switzerland, Monterey, CA, 2026).
[21]
M. Gaowei et al., In Situ and Real Time Characterization of Epitaxial, Ultrasmooth and High Quantum Efficiency Photocathodes Using Synchrotron X-Rays, in Proceedings of the 2026 IEEE International Vacuum Electronics Conference (IVEC), Monterey, CA (IEEE, 2026).
[22]
Combining Physics and Machine Learning to Analyze Particle Beams in Accelerators, https://www.newswise.com/doescience/combining-physics-and-machine-learning-to-analyze-particle-beams-in-accelerators.
[23]
C. Méndez and T. A. Arias, Ab Initio Modeling of Two-Level Systems in Niobium Oxide, in APS Global Physics Summit 2026 (2026).
[24]
C. Méndez and T. A. Arias, Ab initio Identification of Hydrogen Tunneling as Two-Level Systems in Nb2O5 and Ta2O5, Preprint (2026).
[25]
T. Wu and T. Arias, Vacuum Wannier Functions for First-Principles Scattering and Photoemission, Preprint (2026).
[26]
D. Ma, D. A. Muller, and S. E. Zeltmann, Using Aberrations to Improve Dose-Efficient Tilt-corrected 4D-STEM Imaging, Microscopy and Microanalysis 32, ozag008 (2026).
[27]
C. Pennington et al., Enhanced quantum efficiency from optical interference in alkali antimonide photocathodes: Modeling and experimental results, Journal of Applied Physics 139, 065305 (2026).
[28]
T. Arias, A. Bellinvia, G. Cavoto, A. Esposito, F. Pandolfi, G. Papiri, A. D. Polosa, and T. Wu, Hydrogenated carbon structures as directional sub-GeV dark matter detectors, Preprint (2026).
[29]
T. Idso, A. Ullattuparambil, M. Rizi Moeini, A. Rice, K. Alberi, and S. Das, Investigating Dirac Semimetal Cadmium Arsenide as a Potential Low-MTE Photocathode, in Proceedings of the 6th North American Particle Accelerator Conference (NAPAC ’25) Sacramento, CA (JACOW, Geneva, Switzerland, 2026).
[30]
M. K. Duncan, Y. K. Kim, N. Eddy, and R. Ainsworth, Instability Threshold Measurements in the IOTA Ring at Fermilab, in Proceedings of the North American Particle Accelerator Conference (NAPAC’25), Sacramento CA, USA (JACoW, Geneva, Switzerland, 2026).
[31]
J. B. Gibson et al., Developing a complete AI-accelerated workflow for superconductor discovery, Npj Comput Mater 12, 95 (2026).
[32]
S. Kladov, S. Nagaitsev, Y.-K. Kim, D. R. Broemmelsiek, Z. Huang, J. Jarvis, A. H. Lumpkin, J. Ruan, A. Saewert, and R. M. Thurman-Keup, Near-infrared noise in intense electron bunches, Phys. Rev. Accel. Beams 29, 012801 (2026).
[33]
J. Parsons et al., Performance of the Cornell Conduction-Cooled Nb3Sn Cavity Cryomodule (C4M), in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2026).
[34]
A. V. Harbick, N. Sitaraman, M. K. Transtrum, T. A. Arias, and M. Liepe, A computational picture of hydride formation and dissipation In Nb SRF cavities, Supercond. Sci. Technol. (2026).
[35]
V. Do, J. T. Brown, L. Shpani, C. Méndez, H. Lew-Kiedrowska, T. A. Arias, M. U. Liepe, and S. J. Sibener, Probing the Role of Anodic Nb Surfaces in Nb3Sn Growth for Superconducting Radio Frequency Cavities, Journal of Physical Chemistry C (in Review) (2026).
[36]
C. Abbamonte, A. Bartnik, and J. Maxson, Monochromation of pulsed electron beams with terahertz radiation at a planar mirror, Phys. Rev. Applied 25, 054056 (2026).
2025
[1]
S. Kim, J. P. Gonzalez-Aguilera, R. Roussel, G. Kim, A. Edelen, M.-H. Cho, Y.-K. Kim, C. H. Shim, H. Heo, and H. Yang, Deployment and validation of predictive 6-dimensional beam diagnostics through generative reconstruction with standard accelerator elements, Sci Rep 15, 43049 (2025).
[2]
D. Garcia, Spectral Characterization of Cs3Sb Photocathodes in an S-Band Gun, in Photocathode Physics for Photoinjectors (P3 ’25), Tempe AZ, USA (2025).
[3]
V. Anil, Investigating the Potential of SrTiO3 as a High-Brightness Photocathode, in Photocathode Physics for Photoinjectors (P3 ’25), Tempe AZ, USA (2025).
[4]
D. Franklin, O. Chubenko, T. A. Arias, and T. Wu, Studying Photoemissive Properties of Stable Cs-Sb Compound Thin-Film Photocathodes Using a Combination of Monte Carlo Simulations and Density Functional Theory, in Proceedings of the 16th International Particle Accelerator Conference (IPAC ’25), Taipei, Taiwan (JACoW, Geneva, Switzerland, 2025).
[5]
P. Denham, D. Garcia, A. Kulkarni, B. Schaap, Z. Liu, P. Musumeci, and D. Filippetto, Experimental verification of space-charge saturation scaling laws in high-gradient photocathode RF guns, Preprint (2025).
[6]
J. Choi et al., Low barrier ZrOx-based Josephson junctions, APL Mater. 13, 111103 (2025).
[7]
C. Méndez, C. J. Thompson, M. F. Van Duinen, S. J. Sibener, and T. A. Arias, Ab initio Electron-Phonon-Coupling Theory of Elastic Helium-Atom Scattering, Phys. Rev. Lett. 135, 196201 (2025).
[8]
C. J. R. Duncan et al., Photoinduced twist and untwist of moiré superlattices, Nature 647, 619 (2025).
[9]
P. P. Owusu, J. Mama, T. Idso, A. Ullattuparambil, M. M. Rizi, J. Anawalt, and S. Karkare, Characterization of Cs3Sb photocathodes at cryogenic temperatures, Appl. Phys. Lett. 127, 172101 (2025).
[10]
R. Ahsan, A. Kachwala, H. U. Chae, A. T. Priyoti, O. Chubenko, A. Ullattuparambil, Z. Wu, R. Kapadia, and S. Karkare, Evanescent Mode Photoemission, Nano Lett. 25, 15487 (2025).
[11]
A. V. Harbick and M. K. Transtrum, Time-dependent Ginzburg-Landau framework for sample-specific simulation of superconductors for radio-frequency applications, Phys. Rev. B 112, 094518 (2025).
[12]
N. Sitaraman and M. Liepe, Density-Functional Theory Study of Novel Recipes to Reduce Nb3Sn Grain Boundary Dissipation, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[13]
N. Sitaraman, Z. Baraissov, T. Oseroff, D. A. Muller, and M. Liepe, Improving Quench Fields of Enhanced-Tc Surfaces, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25) Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[14]
L. Shpani, M. U. Liepe, T. E. Oseroff, G. Eremeev, and S. Posen, Mechanically Polishing Electroplated Nb3Sn for Higher Accelerating Gradients, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25) Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[15]
S. Seddon-Stettler, T. A. Arias, M. U. Liepe, C. Méndez, T. E. Oseroff, and N. S. Sitaraman, Effects of Thin Gold Layers on Performance of 2.6 GHz SRF Cavity, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[16]
C. Méndez, N. Sitaraman, S. Seddon-Stettler, M. Lipee, and T. Arias, Suppressing Nb Oxidation Via Noble-Metal Caps and Oxide Replacement: Ab Initio Guidance, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25) Tokyo, Japan (JACOW, Geneva, Switzerland, Tokyo, Japan, 2025).
[17]
C. Méndez, N. Sitaraman, S. Seddon-Stettler, M. Liepe, and T. Arias, Suppressing Nb Oxidation via Noble-Metal Caps and Oxide Replacement: Ab Initio Guidance, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[18]
A. Grassl, N. Sitamaran, and M. Liepe, Early Exploration of Zirconium Doping SRF Cavities with Chemical Vapor Deposition, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25) Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[19]
G. Gaitan, A. Grassl, W. Howes, M. Liepe, C. Middleton, P. Quigley, and N. Sitaraman, Initial Results for CVD Based Growth of Nb3Sn, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[20]
G. Gaitan, A. Grassl, A. Holic, W. Howes, G. Kulina, M. Liepe, C. Middleton, P. Quigley, J. Sears, and N. Sitamaran, Commissioning of Chemical Vapor Deposition System for Superconducting Thin Films, in Proceedings of the 22nd International Conference on RF Superconductivity (SRF ’25), Tokyo, Japan (JACoW, Geneva, Switzerland, 2025).
[21]
H. KP, D. Yoon, Y.-T. Shao, Z. Baraissov, L. Mele, C. Mitterbauer, E. Kieft, S. Vespucci, and D. A. Muller, Cepstral Strain Mapping for Small Pixel-Count Detectors, Preprint (2025).
[22]
S. J. Levenson, M. B. Andorf, M. A. Reamon, B. Vareskic, A. Galdi, O. Chubenko, J. Callahan, J. M. Maxson, and I. V. Bazarov, Characterization of electron spin polarization from positive electron affinity GaAs photocathodes, J. Appl. Phys. 138, 104901 (2025).
[23]
B. H. Schaap, M. Lenz, and P. Musumeci, Shallow Angle Inverse Compton Scattering, Preprint (2025).
[24]
T. Hasan, E. Wisniewski, G. Chen, J. Power, O. Chubenko, and S. Doran, Advanced Growth and Characterization of Alkali Antimonide Photocathodes for Bright Beam Applications, in Proceedings of the North American Particle Accelerator Conference 2025 (NAPAC ’25), Sacramento, CA (JACoW, Geneva, Switzerland, 2025).
[25]
H. Kp et al., Electron ptychography reveals a ferroelectricity dominated by anion displacements, Nat. Mater. 24, 1433 (2025).
[26]
T. Xu, C. J. R. Duncan, P. Denham, B. H. Schaap, A. Kulkarni, D. Garcia, S. D. Anderson, P. Musumeci, and R. J. England, Focusing of relativistic electron beams with permanent magnetic solenoid, Phys. Rev. Accel. Beams 28, 082401 (2025).
[27]
P. P. Owusu, C. Zhang, A. Bartnik, T. Kalpada, J. Anawalt, J. Maxson, and S. Karkare, Optimizing 4d Emittance Measurements Using the Pinhole Scan Technique, in Proceedings of the 6th North American Particle Accelerator Conference (NAPAC ’25) Sacramento, CA (JACoW, Geneva, Switzerland, 2025).
[28]
D. Ma, S. E. Zeltmann, C. Zhang, Z. Baraissov, Y.-T. Shao, C. Duncan, J. Maxson, A. Edelen, and D. A. Muller, Emittance minimization for aberration correction II: Physics-informed Bayesian optimization of an electron microscope, Ultramicroscopy 273, 114138 (2025).
[29]
D. Ma, S. E. Zeltmann, C. Zhang, Z. Baraissov, Y.-T. Shao, C. Duncan, J. Maxson, A. Edelen, and D. A. Muller, Emittance minimization for aberration correction I: Aberration correction of an electron microscope without knowing the aberration coefficients, Ultramicroscopy 273, 114137 (2025).
[30]
S. J. Levenson et al., A cesium-iodide surface treatment for enhancement of negative electron affinity photocathode chemical robustness, Journal of Applied Physics 137, 224901 (2025).
[31]
C. M. Pierce, Y.-K. Kim, and I. Bazarov, A comparison-relationship-surrogate evolutionary algorithm for multi-objective optimization, Swarm and Evolutionary Computation 95, 101947 (2025).
[32]
G. Ha, G. Andonian, B. Carlsten, A. Halavanau, N. Majernik, A. Parrack, J. Power, J. Rosenzweig, and M. Yadav, Coherent radiation from initially modulated beams using emittance exchange at the Argonne Wakefield Accelerator, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1075, 170387 (2025).
[33]
A. Frazzitta, M. Yadav, J. Mann, A. R. Rossi, and J. B. Rosenzweig, Extreme radiation emission regime for electron beams in strong focusing ion channels and undulators, Phys. Rev. Accel. Beams 28, 040703 (2025).
[34]
M. Yadav, M. H. Oruganti, B. Naranjo, S. Zhang, G. Andonian, Y. Zhuang, Ö. Apsimon, C. P. Welsch, and J. B. Rosenzweig, Reconstruction of beam parameters and betatron radiation spectra measured with a Compton spectrometer, Phys. Rev. Accel. Beams 28, 042802 (2025).
[35]
K. P. Mondal et al., Pulsed laser deposition assisted epitaxial growth of cesium telluride photocathodes for high brightness electron sources, Sci Rep 15, 3421 (2025).
[36]
C. A. Pennington et al., A structural analysis of ordered Cs3Sb films grown on single crystal graphene and silicon carbide substrates, APL Materials 13, 011120 (2025).
[37]
J. B. Gibson, A. C. Hire, P. M. Dee, O. Barrera, B. Geisler, P. J. Hirschfeld, and R. G. Hennig, Accelerating superconductor discovery through tempered deep learning of the electron-phonon spectral function, Npj Comput Mater 11, 7 (2025).
[38]
B. H. Schaap and P. Musumeci, Tomography of longitudinal phase space linearization for the generation of attosecond electron bunches, Phys. Rev. Accel. Beams 28, 012802 (2025).
[39]
A. Ullattuparambil, M. Moeini Rizi, M. Kaemingk, A. Bartnik, P. Owusu, M. Gordon, C. Abbamonte, S. Levenson, J. Maxson, and S. Karkare, Picometer-Scale Emittance and Space Charge Effects in Nanostructured Photocathodes, in Proceedings of the 6th North American Particle Accelerator Conference (NAPAC ’25), Sacramento, CA (JACOW, Geneva, Switzerland, 2025).
[40]
M. M. Rizi, S. Karkare, P. Saha, L. Lathpandura, S. Shahedipour-Sandvik, A. Lanjani, A. Ullattuparambil, and L. Cultrera, Light-Induced Enhancement of Quantum Efficiency in III-Nitride Photocathodes, in Proceedings of the North American Particle Accelerator Conference 2025 (NAPAC ’25), Sacramento, CA (JACOW, Geneva, Switzerland, Sacraments, CA, 2025).
[41]
P. Owusu, J. Mama, T. Idso, A. Ullattuparambil, M. M. Rizi, J. Anawalt, and S. Karkare, MTE Measurements at the ASU Cryogenically Cooled DC Electron Gun, in Proceedings of the 16th International Particle Accelerator Conference (IPAC ’25), Taipei, Taiwan (JACoW, Geneva, Switzerland, 2025).
[42]
J. Mendez, J. Callahan, L. Cultrera, O. Chubenko, R. Palai, and S. Karkare, Density Functional Theory Approach for Calculating Electronic Band Structure Parameters for Monte Carlo Simulations of Photoemission, in Proceedings of the 6th North American Particle Accelerator Conference (NAPAC ’25) Sacramento, CA (JACOW, Geneva, Switzerland, 2025).
[43]
D. Garcia, G. Adhikari, T. Vecchione, and P. Musumeci, Wafer-Compatible Photocathode Plug Design for High Gradient RF Photoinjector, in Proceedings of the 16th International Particle Accelerator Conference (IPAC ’25), Taipei, Taiwan (JACoW, Geneva, Switzerland, 2025).
