List of all citations.

Journal Publication

  1. Marks, T.A., Eckels, J.D., Mora, G.E., Gorodetsky, A.A., "Uncertainty Quantification of a Multi-Component Hall Thruster model at Varying Facility Pressures," Journal of Applied Physics, October 2025.
  2. Lipscomb, C.P., Boyd, I.D., Hansson, K.B., Eckels, J.D., Gorodetsky, A.A., "Simulation of Vacuum Chamber Pressure Distributions with Uncertainty Quantification," Journal of Propulsion and Power, October 2025.
  3. Fernandez-Coppel J., Marian J., Wirz R., "Fully Discrete Model of Kinetic Ion-Induced Electron Emission from Metal Surfaces ," Journal of Applied Physics, February 2024 .
  4. Thomas A., Lemmer K., "Time-resolved Ion Energy Measurements Using a Retarding Potential Analyzer for Electric Propulsion Applications," Review of Scientific Instruments, 2024.
  5. Tran H., Chew H.B., "Transient to Steady-State Morphology Evolution of Carbon Surfaces under Ion Bombardment: Monte Carlo Simulations ," Acta Materialia, 2024.
  6. Kuldinow, D., Yamashita, Y., Mansour, A., Hara, K., "Ten-Moment Fluid Model with Heat Flux Closure for Gasdynamic Flows," Journal of Computational Physics, 2024 .
  7. Gottfried, J., Yalin, A., "Krypton Tagging Velocimetry in the Plume of a Plasma Hollow Cathode," Optics Continuum, 2024 .
  8. Gottfried, J., Antozzi, S., Stienike, J., Thompson, S. Williams, J., Yalin, A., "Temporally Resolved Relative Krypton Neutral Density During Breathing Mode of a Hall Effect Thruster Recorded by TALIF," Journal of Electric Propulsion, 2024.
  9. Sabiston, G., Wirz, R.E., "Ion-Surface Interactions in Plasma-Facing Material Design," Journal of Applied Physics, 2024.
  10. Jovel, D., Cabrera, J., Walker, M., "Hall Effect Thruster Impedance Characterization in Ground-Based Vacuum Test Facilities ," Journal of Electric Propulsion, 2024.
  11. Roberts, P. J., Jorns, B. A., "Laser Measurement of Anomalous Electron Diffusion in a Crossed-Field Plasma," Physical Review Letters, 2024.
  12. Tran H., Chew H.B., "Surface Morphology and Carbon Structure Effects on Sputtering: Bridging Scales between Molecular Dynamics Simulations and Experiments," Carbon 2023.

Conference Papers

  1. Oh, B., Schok, A., McCullough, C., Hurley, W., Whittaker, C., Gill, T., Marks, T., Jorns, B., "Carbon Backsputter Mitigation with a Cusped Field Retarding Beam Dump," IEPC-2025-417, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  2. Thomas, A., Lemmer, K., Thompson, S., Williams, J., Johnson, L., "Cross-Facility Comparison of Time-Resolved Ion Energy in the SPT-50 Hall Thruster," IEPC-2025-176, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  3. Martelli, R., Williams, J.D., Thompson, S., Freestone, T., Farnell, C., "Characterization of a 600 A Barium Oxide-Based Hollow Cathode," IEPC-2025-706, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  4. Thomas, A., Lemmer, K., "Impact of Hall Thruster Harness Impedance on Time-Resolved Ion Energy," IEPC-2025-068, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  5. Stienike, J., Da Valle, M., Morasco, M., Thompson, S., Williams, J.D., Yalin, A.P., "Spatial Maps of Krypton Neutral Density in SPT-70 HET Plume by TALIF," IEPC-2025-218, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  6. Hurley, W.J., McCarthy, L., Darrow, B., Oh, B., Gill, T., Jorns, B, "Facility Modifications for High Power Hall thruster Testing," IEPC-2025-641, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  7. Topham, T.J., Bergmann, S., Alves Almeida, A.C., Foster, J.E., "Impacts of Thruster Chassis Potential on Beam Neutralization at High-Power Densities," IEPC-2025-588, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  8. Price, H., Thompson, S., Farnell, C.C., Farnell, C.C., Williams, J.D., "A Model of a Combined ESA and ExB Probe," IEPC-2025-711, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  9. Denig, A.C., Hara, K., "3D Particle-in-Cell Modeling of E × B Discharge," IEPC-2025-492, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  10. Brick, D.G., Roberts, P., Jorns, B.A., "Self-Consistent Implementation of Anomalous Transport Closures in a Hall Effect Thruster Model," IEPC-2025-361, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  11. Eckels, J.D., Gorodetsky, A.A., Lopez Ortega, A.,, "Data-Driven Acceleration of Hall Thruster Simulations with a Sliding-Window Method," IEPC-2025-041, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  12. Yamashita, Y., Butler-Craig, N., Walker, M., Hara, K., "Electron Mobility Estimation of Hollow Cathode Plasma in Different Electrical Configurations," IEPC-2025-455, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025..
  13. Lopez-Uricoechea, J., Butler-Craig, N., Lev, D., Walker, M.L.R., "Nondimensional Framework for a Hall Thruster Discharge and Facility Effects," IEPC-2025-201, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  14. Troyetsky, D.E., Bogel, E., Hara, K., "A Two-Dimensional Axial-Radial Full-Fluid Moment Model for Hall Effect Thrusters," IEPC-2025-382, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025..
  15. Rovey, J.L., Yamauchi, T., Huang, W., Thomas, R. E., Hurley, W. J., Farnell, S.C., Thompson, S.J., Farnell, C.C., Farnell, C.C., Brabston, W.P., "Recommended Practice for Use of ExB Probes in Electric Propulsion Testing," IEPC-2025-483, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  16. Yamashita, Y., Sharma, V., Hara, K., "Computational Modeling of Breakdown Process in RF Plasmas," IEPC-2025-410, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025..
  17. Cretel, C., Wirz, R.E., "Electric Propulsion Mission Life Prediction using a Multi-Fidelity Modeling Framework," IEPC-2025-585, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  18. Hara, K., Dwivedi, A., , "Estimation of Electron Dynamics Using Ensemble Kalman Filtering," IEPC-2025-674, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  19. Obenchain, R.O., Wirz, R.E., "Neutral Drift and Transport in Ion and Hall Thruster Test Facilities," IEPC-2025-606, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  20. Hara, K., Zheng, A.X., Troyetsky, D.E., Cabrera, J.D., Walker, M.L.R., Thompson, S., Williams, J.D., "Plasma Impedance of Hall Effect Thrusters," IEPC-2025-675, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  21. Obenchain, R.A., Wirz, R.E., "Charge Exchange (CEX) Corrections for Electric Propulsion Facilities," IEPC-2025-609, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  22. Thompson, S.J., Hara, K., Cabrera, J., Walker, M., Williams, J.D., "Causality Study of Pressure Effects on Hall Thruster Telemetry," IEPC-2025-580, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  23. Wirz, R.E., et al., "Electric Propulsion Research Activities in the Plasma, Energy, & Space Propulsion Laboratory," IEPC-2025-661, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  24. Hara, K., Chaplin, V.H., Johnson, L.K., Xu, G., Levin, D., "Recommended Practices in Electric Propulsion for Optical Emission Spectroscopy," IEPC-2025-XXX, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  25. Hofbeck, I.J., Wirz, R.E., "Spatial Spectroscopy for Hall Thruster Plasma Characterization," IEPC-2025-630, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  26. Lipscomb, C.P., Boyd, I.D., Brick, D.G., Jorns, B.J., "Modeling Hall Thruster Plume Expansion in Vacuum Chamber and Space Environments," IEPC-2025-216, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  27. Lim, G., Levin, D.A., "Three-Dimensional High-Fidelity Particle Simulations of Gridded Ion Thruster Operation under Ground Testing Conditions," IEPC-2025-093, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  28. Stasiukevicius, M.J., Boyd, I.D., "High Fidelity Hall Effect Thruster Plume Simulations with Facility Carbon Sputterant Tracking," IEPC-2025-510, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  29. Kim, A., Tran, H., "Reduced-Order Modeling for Sputtering of Monoatomic Materials by Noble Gas Bombardment," IEPC-2025-090, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  30. Lemmer, K.M., Thomas, A.J., Huang, W., Goebel, D., Lobbia, R.B., "Recommended Practices for Design and Use of Retarding Potential Analyzers in Electric Propulsion," IEPC-2025-363, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  31. Allen, M.G., Cabrera, J., Butler-Craig, N., Hurley, W., Eckhaus, Ari, Walker, M., Jorns, B., "Comparison of the Response of a 9kW-Class Hall Effect Thruster to Facility Pressure Between Two Test Facilities," IEPC-2025-708, 39th International Electric Propulsion Conference, Imperial College London, London, United Kingdom, September 14-19, 2025.
  32. Butler-Craig, N., Lopez-Uricoechea, J., Lev, D., et al, "Comparison of the Near-Field Electron Properties of a Magnetically-shielded Hall Effect Thruster in Various Electrical Configurations," AIAA-2025-1099, 2025 SciTech, Orlando, FL, January 6-10, 2025.
  33. Lim, G., Chew, H.B., Levin, D., Tran, H., "Sticking Coefficient Effects on the Carbon Deposition Rates in an Electric Propulsion Testing Chamber," AIAA-2025-1101, 2025 SciTech, Orlando, FL, January 6-10, 2025.
  34. Thomas, A., Lemmer, K., Johnson, L., "Time-Resolved Ion Energy Measurements in the SPT-50 Hall Effect Thruster," AIAA-2025-0909, 2025 SciTech, Orlando, FL, January 6-10, 2025.
  35. Brick, D., Roberts, P., Jorns, B., "Numerical Investigation of Electron Energy Transport in Hall Thrusters," AIAA-2025-0298, 2025 SciTech, Orlando, FL, January 6-10, 2025.
  36. Blanchard, V., Qureshi, J., Yamamoto, N., Yalin, A., "Laser Thomson Scattering Measurements in Low Density Pulsed Argon Plasma," AIAA-2025-1294, 2025 SciTech, Orlando, FL, January 6-10, 2025.
  37. Bhakyapaibul, T., Levin, D., Chew, H.B., "Molecular Dynamics Modeling of the Forces on [EMIM][BF4] Ion Emissions and Emission Rates Due to Applied Electric Fields," AIAA-2025-0296, 2025 SciTech, Orlando, FL, January 6-10, 2025..
  38. Thomas, A., Lemmer, K., Cabera, J., Walker, M., Topham, T., Foster, J., "High-Speed Far-Field Energy Measurements in a 9-kW Hall Effect Thruster for Model Inference and Calibration," IEPC-2024-459, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  39. Taghizadeh, E., Obenchain, R.A., Franz, L.K., Wirz, R.E., "Electric Propulsion Facility Optimization via Reduced Order Modeling," IEPC-2024-588, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  40. Cabrera, J., Jovel, D., Walker, M., "Pressure Facility Effects on the Impedance Characteristics of a 9-kW HET," IEPC-2024-808, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  41. Eckels, J., Marks, T., Aksoy, D., Vutukury, S., Gorodetsky. A., "Dynamic Mode Decomposition for Particle-In-Cell of a Hall Thruster and Plume," IEPC-2024-412, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  42. Nishii, K., Levin, D., "Numerical Study of Facility Effects on Gridded Ion Thrusters through a Multi-GPU PIC-DSMC Solver," IEPC-2024-323, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28, 2024.
  43. Suzuki, S., Hara K., "Elastic Electron-Neutral Collision Effect on Cross-Field Electron Transport," IEPC-2024-541, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  44. Hara K., "Data Assimilation Techniques for Plasma Dynamics and Chemistry for Electric Propulsion System," IEPC-2024-710, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  45. Roberts, P. J., Allen, M. G., Brick, D. G., Jorns, B. A., "Empirical Closures for Momentum and Energy Transport in Hall Thrusters based on Thomson Scattering Measurements," IEPC-2024-393, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  46. Hara K., Zivre T., Yamashita, Y., Troyetsky, D. E., Jovel, D., Cabrera, J., Walker, M., "Model Based Extrapolation of Hall Thruster Electrical Impedance Between Test Facilities," IEPC-2024-711, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  47. Denig A., Hara K., "Partially Magnetized Plasma Instabilities in a Three-Dimensional Particle-In-Cell Simulation," IEPC-2024-852, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  48. Brick, D.G., Jorns, B. A., "Model Based Investigation of Anomalous Energy Transport in a Magnetically-Shielded Hall Thruster," IEPC-2024-411, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  49. Oh B., Hurley W., Zoppi G., May C., Whittaker C., Jorns B.A., "Carbon Backsputter Mitigation with a Retarding Beam Dump," IEPC-2024-504, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  50. Allen, M., Roberts, P., Jorns, B., "Direct Measurements of the Pressure Dependence of the Electron Temperature in a Magnetically Shielded Hall Thruster," IEPC-2024-821, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  51. Franze, L.K., Wirz, R.E., "Xe-C Scattering, Implantation, and Sputtering Analysis for EP Systems," IEPC-2024-552, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  52. Sabiston, G., Wirz, R.E., "Electric Propulsion Vacuum Chamber Design Approaches for Reducing Sputtering Effects," IEPC-2024-187, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  53. Cowan, R.W., Biswas, S., Franz, L.K., Cretel, C., Obenchain, R.A., Wirz, R.E., "Hall Thruster Krypton Sputtering Effects on Vacuum Facility Materials," IEPC-2024-549, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  54. Biswas, S., Obenchain, R.A., Cowan, R.W., Wirz, R.E., "Review of PMI data for HET-Induced Erosion of Facility Surfaces," IEPC-2024-532, 38th International Electric Propulsion Conference, Toulouse, France, June 23-28,2024.
  55. Thompson, S., Garman, J., Robertson, Z. et al , "Methods for Mitigating Backsputter in Electric Propulsion Test Facilities I: Beam Halter Concept and Design," AIAA-2024-2367, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  56. Hurley, W., Hortrop, C., Whittaker, C., et al, "Methods for Mitigating Backsputter in Electric Propulsion Test Facilities II: Beam Halter Demonstration during Hall Thruster Testing," AIAA-2024-2368, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  57. Sabiston, G., Wirz, R.E., "Thrust Densification of Space Electric Propulsion Systems via Volumetrically Complex Materials," AIAA-2024-1136, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  58. Roberts, P. J., Jorns, B.A., "Inferring Electron Heat Flux in a High-Power Hall Thruster with Incoherent Thomson Scattering," AIAA-2024-1957, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  59. Obenchain R., Wirz R., "Neutral Ingestion Compensation for Gridded Ion Thrusters via Modeling and Analysis," AIAA-2024-1548, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  60. Allen, M., Marks, T., Eckels, J., Gorodetsky, A., Jorns, B., "Optimal Experimental Design for Inferring Anomalous Electron Transport in a Hall Thruster," AIAA-2024-2164, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  61. Cretel, C., Wirz, R.E., "Ion Optics Model for Rapid Assessment of Gridded Ion Thruster Performance and Life," AIAA-2024-1550, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  62. Jovel, D., Walker, M., "Current Pathways Model for Hall Thruster Plumes in Ground-based Vacuum Test Facilities," AIAA-2024-2365, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  63. Antozzi S., Gottfried J., Williams, J., Yalin A., "Cavity Ring-Down Spectroscopy (CRDS) Measurements of Barium Emitted from a Hollow Cathode," AIAA-2024-0922, 2024 SciTech, Orlando, FL, January 8-12, 2024.
  64. Su L., Gill T.M., Roberts P.J., et al, "Operation and Performance of a Magnetically Shielded Hall Thruster at Ultrahigh Current Densities on Xenon and Krypton," AIAA SciTech - 2023-0842, National Harbor, MD, January 23-27, 2023.
  65. Wirz R., Gorodetsky A., Jorns B., Walker M., "Predictive Engineering Modeling for Life and Performance Assessment of Electric Propulsion Systems," IEPC-2022-410, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  66. Obenchain R., Wirz R., "Ion Thruster Facility Effects Characterization via Computational Analysis," IEPC-2022-264, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  67. Nishii K., Levin D., Clark S., Tompkins J., Nuwal N., Rovey J., "Numerical Simulation of Carbon Sputtering for Electric Propulsion in the Ground Facility," IEPC-2022-379, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  68. Troyetsky D.E., Greve C.M., Hara K., "State Estimation for Real-Time Analysis of Dynamic Plasma Properties and Electrical Circuit Effects in Hall Effect Thrusters," IEPC-2022-323, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  69. Hara K., Denig A.C., Mansour A.R., Tsikata S., "Fluid and Kinetic Plasma Instabilities in Hall Effect Thrusters," IEPC-2022-333, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  70. Greve C.M., Troyetsky D.E., Hara K., "Real-Time Estimation of Electron Mobility in Hall Effect Thruster Models," IEPC-2022-342, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  71. Denig A.C. Hara K., "Kinetic Model of Plasma Sheath Near a Dielectric-Coated Metal Wall," IEPC-2022-345, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  72. Mansour A.R., Hara K., "Axisymmetric Full-Fluid Moment Model for Cylindrical Plasmas," IEPC-2022-390, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  73. Tran H., Chew H.B., "Quantifying the Sputtering Response of Graphitic Structures with Molecular Dynamics Simulations," IEPC-2022-592, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  74. Clark S., *Tompkins J., *Nishii K., et al, "Development of Isotopic Carbon Labelling Diagnostic for Electric Propulsion," IEPC-2022-163, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  75. Wegner, T., Dumitrache, C., Yalin, A., "Rate-Equation Modeling of Xe and Kr TALIF for Electric Propulsion Applications," IEPC-2022-298, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  76. Thomas A., Watts H., Lemmer K.,, "Development and Initial Testing of a Plasma Confinement Cage," IEPC-2022-160, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  77. Byrne M., Roberts P., Jorns B., "Coupling of Electrical and Pressure Facility Effects in Hall Effect Thruster Testing," IEPC-2022-377, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.
  78. Walker M., "Overview of the Joint AdvaNced PropUlsion InStitute (JANUS)," IEPC-2022-156, 37th International Electric Propulsion Conference, Boston, Massachusetts, June 19-23, 2022.