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The Utah State University Materials Physics Group (MPG) performs state-of-the-art ground-based testing of space environment effects on aerospace materials. These include electrical charging and electron transport properties of both conducting and insulating materials; they emphasize studies of electron emission, conductivity, luminescence, and electrostatic discharge. Our research group consists of faculty, graduate, and undergraduate researchers. Publications and presentations are archived here.
2024
Radiation Induced Conductivity of PEEK: Effects of Temperature and Total Ionizing Dose, Joshua Boman, Brian Wood, Jordan Lee, JR Dennison, Kim M. Aaron, and Wousik Kim; 17th Spacecraft Charging Technology Conference
Temperature Dependent Radiation Induced Conductivity of Polymeric Spacecraft Materials, Jodie Corbridge Gillespie and JR Dennison; The 17th Spacecraft Charging Technology Conference, Palais des Papes, Avignon, France, June 17-21, 2024
Effects of Differing Radiation Methods on Charge Transport in Polymers, Zachary J. Gibson, JR Dennison, and Virginie Griseri; The 17th Spacecraft Charging Technology Conference, Palais des Papes, Avignon, France, June 17-21, 2024
Time-Dependent Behavior of Radiation Induced Conductivity in Polymers, Tyler Heggenes, Jenny R. Whiteley, Jodie Corbridge Gillespie, Joshua Boman, and JR Dennison; The 17th Spacecraft Charging Technology Conference, Palais des Papes, Avignon, France, June 17-21, 2024
2023
Improved Satellite Robustness Through Application of Erosion Resistance and High Emissivity Coatings, Rajeswaran Radhakrishnan, Timothy D. Hall, Danny Liu, Maria Inman, Stephen Snyder, Matthew Robertson, Trace Taylor, and J.R. Dennison
2022
Laboratory Simulations of Simultaneous Reduced Gravity and Ionizing Radiation Environments, Achal Duhoon and JR Dennison; Proceedings of the 16th Spacecraft Charging Technology Conference
The Relevance of Pulsed Electroacoustic Measurements for Spacecraft Charging, Zachary Gibson and J. R. Dennison; Spacecraft Charging Technology Conference (2022)
Analyzing Electron Yield Decay Curves with the Electron Emission Spectra, Matthew Robertson and JR Dennison
Modeling the Effects of Surface Roughness on Electron Yield, Trace Taylor, Matthew Robertson, and JR Dennison; Proceedings of the 16th Spacecraft Charging Technology Conference
2021
Total Ionizing Dose Tolerance of Micro-SD Cards for Small Satellite Missions, Achal Duhoon, J. R. Dennison, Jordan Lee, Satoshi Takemori, and Takahiro Yatabe
Electron Yield Decay Curves for Analysis of Sample Charging and Neutralization, Matthew Robertson
2020
Electron Yield of a Carbon Fiber Composite, Matthew Robertson
2019
Influence of Vibrationally-Induced Structural Changes on Carbon Nanotube Forests Suppression of Electron Yield, Jordan Lee, Brian Wood, Gregory Wilson, T.-C. Shen, and JR Dennison; Proceedings of the Applied Space Environments Conference 2019
Strategies for Determining Electron Yield Material Parameters for Spacecraft Charge Modeling, Phil Lundgreen and JR Dennison; Proceedings of the Applied Space Environments Conference 2019
Surface Modification Influences on Electron Yield, Matthew Robertson and JR Dennison
Electron Yield Measurements of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, and JR Dennison; Proceedings of the Applied Space Environments Conference 2019
Suppresion of Electron Yield With Carbon Nanotube Forests: A Case Study, Brian Wood, Jordan Lee, Gregory Wilson, T.-C. Shen, and JR Dennison; Proceedings of the Applied Space Environments Conference 2019
2018
Wireless Antenna Detection of Electrostatic Discharge Events, Allen Andersen and JR Dennison; 15th Spacecraft Charging Technology Conference
Effects of Sample Adhesives Acoustic Properties on Spatial Resolution of Pulsed Electroacoustic Measurements, Zachary Gibson, JR Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson, and Virginie Griseri; CEIDP
Incorporating Electron Range Approximations into Secondary Electron Emission Models, Gregory Wilson
Incorporating Electron Range Approximations Into Secondary Electron Emission Models, Gregory Wilson; Utah NASA Space Grant Consortium
Electron Range Computational Tool for Arbitrary Materials Over a Wide Energy Range, Gregory Wilson, JR Dennison, and Anne C. Starley
Secondary Electron Yield Measurements of Carbon Nanotube Forests: Dependence on Morphology and Substrate, Brian Wood, Justin Christensen, Gregory Wilson, T. -C. Shen, and JR Dennison; SCTC
Time-Evolved Constant Voltage Conductivity Polymeric Materials, Brian Wood, JR Dennison, and David King; SCTC
2017
Dynamic Secondary Electron Emission in Dielectric/Conductor Mixed Coatings, Leandro Olano, Maria E. Davila, A. Jacas, M A. Rodriguez, and JR Dennison; Mulcopim
Dynamic secondary electron emission in dielectric/conductor mixed, Leandro Olano, Isabel Montero, María E. Dávila, A. Jacas, M. A. Rodriguez, and JR Dennison; Proceedings of the 9th International Workshop on Multipactor, Corona and Passive Intermodulation (MULCOPIM
Hemispherical Grid Retarding Field Analyzer Redesign for Secondary Electron Emission Studies, Greg Wilson and JR Dennison; Proceedings of the Utah NASA Space Grant Consortium Research Symposium
Hemispherical Grid Retarding Field Analyzer Redesign for Secondary Electron Emission Studies, Gregory Wilson; Utah NASA Space Grant Consortium
2016
Perspectives on the Distributions of ESD Breakdowns for Spacecraft Charging Applications, Allen Andersen, Krysta Moser, and JR Dennison; 14th Spacecraft Charging Technology Conference
Voltage Ramp-rate Dependence of DC Breakdown in Polymeric Insulators: Physical Models versus Data, Allen Andersen, Krysta Moser, and JR Dennison; IEEE Conference on Electrical Insulation and Dielectric Phenomena
Temporal and Spatial Correlations in Electron-induced Arcs of Adjacent Dielectric Islands, Justin Christensen, JR Dennison, and Justin Dekany; Spacecraft Charging Technology Conference
Instrumentation Enhancements for Electron Yield Measurements of Extremely Low-conductivity High-yield Dielectrics, Justin Christensen, Gregory Wilson, and JR Dennison; 22nd Annual Fellowship Symposium Utah NASA Space Grant Consortium
Absolute Electron Emission Calibration: Round Eobin Tests of Au and Graphite, JR Dennison, Justin Christensen, Justin Dekany, Clint Thomson, Neal Nickles, Robert E. Davies, Mohamed Belhaj, Kazuhiro Toyoda, Kazutaka Kawasaki, Isabel Montero, Maria E. Dávil, Leandro Olano, and Luis Galán; 14th Spacecraft Charging Technology Conference, ESA/ESTEC
Synergistic Models of Electron Emission and Transport Measurements of Disordered SiO2, JR Dennison, Jodie Corbridge Gillespie, Allen Andersen, Amberly Evans Jensen, Gregory Wilson, Justin Dekany, Alec Sim, and Ryan C. Hoffmann; 14th Spacecraft Charging Technology Conference, ESA/ESTEC
Extremely Low Secondary Electron Emission from Metal/DielectricParticulate Coatings, Isabel Montero, L Aguilera, Leandro Olano, María E. Dávila, V. Nistor, L. Galán, JR Dennison, and Gregory Wilson; 14th Spacecraft Charging Technology Conference, ESA/ESTEC
Dependence of Electrostatic Field Strength on Voltage Ramp Rate for Spacecraft Materials, Krysta Moser, Allen Andersen, and JR Dennison; 14th Spacecraft Charging Technology Conference, ESA/ESTEC
PEA System Modeling and Signal Processing For Measurement of Volume Charge Distributions in Thin Dielectric Films, Lee H. Pearson, JR Dennison, Erick W. Griffiths, and A C. Pearson; 14th Spacecraft Charging Technology Conference
Pulsed Electroacoustic System Development for Volume Charge Distribution Measurement in Thin Dielectric Films, Lee H. Pearson, JR Dennison, Erick W. Griffiths, and Anthony C. Pearson; Spacecraft Charging Technology Conference
Predictive Formula for Electron Penetration Depth of Diverse Materials over Large Energy Ranges, Anne C. Starley, Gregory Wilson, Lisa D. Montierth, and JR Dennison; 14th Spacecraft Charging Technology Conference, ESA/ESTEC
2015
Electrical Properties Study under Electron Beam of Annealed and Coated Boron Nitride, Kevin Guerch, Thierry Paulmier, JR Dennison, Justin Dekany, Sophie Guillemet-Fritsch, and Pascal Lenormand
2014
Pre-breakdown Arcing and Electrostatic Discharge in Dielectrics under High DC Electric Field Stress, Allen Andersen and JR Dennison; Proceedings of the 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena
Electrostatic Discharge and Endurance Time Measurements of Spacecraft Materials: A Defect-Driven Dynamic Model, Allen Andersen, JR Dennison, Alec M. Sim, and Charles Sim; Proceedings of the 13th Spacecraft Charging Technology Conference
Density of State Models and Temperature Dependence of Radiation Induced Conductivity, Jodie Corbridge Gillespie, JR Dennison, and Alec M. Sim; Proceedings of the 13th Spacecraft Charging Technology Conference
Variations in Cathodoluminescent Intensity of Spacecraft Materials Exposed to Energetic Electron Bombardment, Justin Dekany, Justin Christensen, JR Dennison, Amberly Evans Jensen, Gregory Wilson, Todd Schneider, Charles W. Bowers, and Robert Meloy; Proceedings of the 13th Spacecraft Charging Technology Conference
The Dynamic Interplay Between Spacecraft Charging, Space Environment Interactions and Evolving Materials, JR Dennison; Proceedings of the 13th Spacecraft Charging Technology Conference
Small Satellite Space Environments Effects Test Facility, JR Dennison, Kent Hartley, Lisa Montierth Phillipps, Justin Dekany, James S. Dyer, and Robert H. Johnson; Proceedings of the 28th Annual AIAA/USU Conference on Small Satellites
Defects Density of States Model of Cathodoluminescent Intensity and Spectra of Disordered SiO2, Amberly Evans Jensen and JR Dennison; Proceedings of the 13th Spacecraft Charging Technology Conference
2013
Diverse electron-induced optical emissions from space observatory materials at low temperatures, JR Dennison, Amberly Evans Jensen, Gregory Wilson, Justin Dekany, Charles W. Bowers, and Robert H. Meloy; Proceedings of the Society of Photo-Optical Instrumentation Engineers (Cryogenic Optical Systems and Instruments)
Pulsed electro-acoustic (PEA) measurements of embedded charge distributions, JR Dennison and Lee H. Pearson; Proceedings of the Society of Photo-Optical Instrumentation Engineers (Nanophotonics and Macrophotonics for Space Environments VII)
Nanodielectric Properties of High Conductivity Carbon-Loaded Polyimide Under Electron-Beam Irradiation, Amberly Evans Jensen, JR Dennison, Justin Dekany, and Gregory Wilson; Proceedings of the 2013 IEEE International Conference on Solid Dielectrics (ICSD), (Bologna, Italy, June 30-July 4, 2013)
Properties of Cathodoluminescence for Cryogenic Applications of SiO2-based Space Observatory Optics and Coatings, Amberly Evans Jensen, JR Dennison, Gregory Wilson, Justin Dekany, Charles Bpwers, Robert Meloy, and James B. Heaney; Proceedings of the Society of Photo-Optical Instrumentation Engineers (Cryogenic Optical Systems and Instruments)
On the Feasibility of Detecting Spacecraft Charging and Arcing by Remote Sensing, Dale C. Ferguson, Jeremy Murray-Krezan, David A. Barton, and JR Dennison; 5th AIAA Atmospheric and Space Environments Conference, San Diego, CA
Comprehensive Theoretical Framework for Modeling Diverse Electron Transport Experiments in Parallel Plate Geometries, Alec Sim and JR Dennison; 5th AIAA Atmospheric and Space Environments Conference,San Diego, CA, June 24-27, 2013
Electron Energy Dependent Charging Effects of Multilayered Dielectric Material, Gregory Wilson, JR Dennison, Amberly Evans Jensen, and Justin Dekany; IEEE Transactions on Plasma Science
2012
Ultrahigh Vacuum Cryostat System for Extended Low Temperature Space Environment Testing, Justin Dekany, Robert H. Johnson, Gregory Wilson, Amberly Evans, and John R. Dennison; Proceedings of the 12th International Spacecraft Charging and Technology Conference
Electron Transport Models and Precision Measurements in a Constant Voltage Chamber, Justin Dekany, Alec Sim, Jerilyn Brunson, and John R. Dennison; Proceedings of the 12th International Spacecraft Charging and Technology Conference
Electron Beam Induced Luminescence of SiO2 Optical Coatings, John R. Dennison, Amberly Evans, Gregory Wilson, Charles W. Bowers, and Robert Meloy; Conference on Electrical Insulation and Dielectric Phenomena, CEIDP, 14-17 Oct. 2012
Low Temperature Cathodoluminescence of Space Observatory Materials, Amberly Evans Jensen, Gregory Wilson, Justin Dekany, and JR Dennison; 12th Spacecraft Charging Technology Conference
In Situ Surface Voltage Measurements of Dielectrics Under Electron Beam Irradiation, Joshua L. Hodges, John R. Dennison, Justin Dekany, Gregory Wilson, Amberly Evans, and Alec Sim; Proceedings of the 12th International Spacecraft Charging and Technology Conference
Small Scale Simulation Chamber for Space Environment Survivability Testing, Robert H. Johnson, Lisa D. Montierth, John R. Dennison, James S. Dyer, Ethan Lindstrom, and Alex Chanson; Proceedings of the 12th International Spacecraft Charging and Technology Conference
Charging Effects of Multilayered Dielectric Spacecraft Materials: Surface Voltage, Discharge and Arcing, Gregory Wilson, Amberly Evans Jensen, Justin Dekany, and JR Dennison; 12th Spacecraft Charging Technology Conference
2011
Surface Geometry and Heat Flux Effect on Thin Wire Nucleate Pool Boiling of Subcooled Water in Microgravity, Troy Munro, Andrew Fassman, Heng Ban, and JR Dennision; AIAA Region VI Student Conference
2010
Comparison of Flight and Ground Tests of Environmental Degradation of MISSE-6 SUSpECS Materials, JR Dennison, John Prebola, Amberly Evans, Danielle Fullmer, Joshua L. Hodges, Dustin H. Crider, and Daniel S. Crews; Comparison of Flight and Ground Tests of Environmental Degradation of MISSE-6 SUSpECS Materials
Comparison of Flight and Ground Tests of Environmental Degradation of MISSE-6 SUSpECS Materials, JR Dennison, John Prebola, Amberly Evans Jensen, and Joshua L. Hodges; 11th Spacecraft Charging Conference
The Effects of Surface Modification on Spacecraft Charging Parameters, Amberly Evans and John R. Dennison; Proceedings of the 11th Spacecraft Charging Technology Conference
Methods to Determine Total Electron-Induced Electron Yields Over Broad Range ofConductive and Nonconductive Materials, Ryan C. Hoffmann and John R. Dennison; Proceedings of the 11th Spacecraft Charging Technology Conference—2010
Unified Model of Charge Transport in Insulating Polymeric Materials, Alec Sim and John R. Dennison; proceedings of the 15th Rocky Mountain NASA Space Grant Consortium
Charge Dynamics in Highly Insulating Space Craft Materials, Alec Sim and J. R. Dennison
Approximation of Range in Materials as a Function of Incident Electron Energy, Gregory Wilson and John R. Dennison; Proceedings of the 11th Spacecraft Charging Technology Conference
2009
Characterization of Electrical Materials Properties Related to Spacecraft Charging, John R. Dennison; Radiation capabilities for the Europa Jupiter System Missions Instrument Workshop
Flight Experiments on the Effects of Contamination on Electron Emission of Materials, John R. Dennison, Joshua L. Hodges, Jeff Duce, and Amberly Evans; 1st AIAA Atmospheric and Space Environments Conference
Engineering Tool for Temperature, Electric Field and Dose Rate Dependence of High Resistivity Spacecraft Materials, JR Dennison, Steven Hart, Jodie Corbridge Gillespie, Justin Dekany, Charles Sim, and Dan Arnfield; 47th AIAA Aerospace Sciences Meeting American Institute of Aeronautics and Astronautics
Flux and Fluence Dependence of Electron Emission for High-yield, High-resistivity Materials: Implications for Spacecraft Charging, Ryan Hoffmann, John R. Dennison, and Jennifer Albretsen; Proceedings of the 47th American Institute of Aeronautics and Astronautics Meeting on Aerospace Sciences
Measurement of Charging and Discharging of High Resistivity Materials Spacecraft Materials by Electron Beams, Ryan Hoffmann, Joshua L. Hodges, Jesse Hayes, and JR Dennison; 47th American Institute of Aeronautics and Astronomics Meeting on Aerospace Sciences, Orlando, FL
Thin Wire Nucleate Boiling of Water in Sustained Microgravity, Justin P. Koeln, Heng Ban, and John R. Dennison; Proceedings of the 23nd Annual AIAA/USU Conference on Small Satellites
Relevance of Ground-based Electron-Induced Electrostatic Discharge Measurements to Space Plasma Environments, Jennifer A. Roth, Ryan Hoffmann, John R. Dennison, and Jonathon R. Tippetts; 1st AIAA Atmospheric and Space Environments Conference
2008
Resistivity As Dynamic Behavior in Low Density Polyethylene, J. Brunson and John R. Dennison; proceedings of the 13th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium
Low-Fluence Electron Yields of Highly Insulating Materials, Ryan Hoffmann and John R. Dennison; Proceedings of the 22nd Annual AIAA/USU Conference on Small Satellites
2007
Hopping Conductivity in Low-Density Polyethylene, Jerilyn Brunson and John R. Dennison; Proceedings of the 12th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium
Dependence of Resistivity in Low-Density Polyethylene on Space Environment Parameters, John R. Dennison and Jerilyn Brunson; 10th Spacecraft Charging and Technology Conference
Triggering Threshold Spacecraft Charging with Changes in Electron Emission from Materials, John R. Dennison, R. C. Hoffmann, and J. Abbott; 45th American Institute of Aeronautics and Astronomics Meeting on Aerospace Sciences, Reno, NV
Electron-Induced Electron Yields of Uncharged Insulating Materials, Ryan Carl Hoffmann, John R. Dennison, and Jennifer Albretsen; 10th Spacecraft Charging and Technology Conference
2006
E-Field Dependent Conduction in Low-Density Polyethylene, Jerilyn Brunson and John R. Dennison; 11th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium
Design And Construction Of A Misse-6 Payload: State of Utah Space Environment & Contamination Study (SUSpECS), Joshua L. Hodges, Jeff Duce, and John R. Dennison; 11th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium
2005
Measuring Charge Storage Decay Time and Resistivity of Spacecraft Insulators, Jerilyn Brunson and John R. Dennison; Proceedings of the 10th Rocky Mountain NASA Fellowship Symposium
The Importance of Accurate Computation of Secondary Electron Emission for Modeling Spacecraft Charging, S. Clerc, John R. Dennison, and C. D. Thomson; 9th Spacecraft Charging Technology Conference
State of Utah Space Environment & Contamination Study (SUSpECS) MISSE-6 Payload to Investigate Their Effects on Electron Emission and Resistivity of Spacecraft Materials, John R. Dennison, L. Pearson, L. Davis, J. W. Burns, R. S. Hyde, James S. Dyer, Tina Andrus, Andrew Jay Auman, Jeff Duce, Tim Neilsen, and Rob Leishman; 9th Spacecraft Charging Technology Conference, Epochal Tsukuba, Tsukuba, Japan
Proposed Modifications to Engineering Design Guidelines Related to Resistivity Measurements and Spacecraft Charging, John R. Dennison, Prasanna Swaminathan, Randy Jost, Jerilyn Brunson, Nelson W. Green, and A. Robb Frederickson; 9th Spacecraft Charging Technology Conference
Experimentally Derived Resistivity for Dielectric Samples From the CRRES Internal Discharge Monitor, Nelson W. Green, A. Robb Frederickson, and John R. Dennison; 9th Spacecraft Charging Technology Conference
Evolution of the Electron Yield Curves of Insulators as a Function ofImpinging Electron Fluence and Energy, Alec Sim, John R. Dennison, and Clint Thomson; Proceedings of the 9th Spacecraft Charging Technology Conference
2003
Charge Storage, Conductivity and Charge Profiles of Insulators As Related to Spacecraft Charging, John R. Dennison, A. R. Frederickson, and Prasanna Swaminathan; 8th Spacecraft Charging Technology Conference
Materials Characterization at Utah State University: Facilities and Knowledgebase of Electronic Properties of Materials Applicable to Spacecraft Charging, John R. Dennison, C. D. Thomson, J. T. Kite, V. V. Zavyalov, and Jodie Corbridge; 8th Spacecraft Charging Technology Conference
Measurement of Conductivity and Charge Storage in Insulators Related to Spacecraft Charging, A. R. Frederickson and JR Dennison; 2003 IEEE Conference on Electrical Insulation and Dielectric Phenomena
Secondary Electron Production and Transport Mechanisms by Measurement of Angle-EnergyResolved Cross Sections of Secondary and Backscattered Electrons, Jason Kite and John R. Dennison; 9th Rocky Mountain NASA Space Grant Consortium Symposium
Comparison of Classical and Charge Storage Methods for Determining Conductivity of Thin Film Insulators, Prasanna Swaminathan, A. R. Frederickson, John R. Dennison, Alec Sim, J. Brunson, and Eric Crapo; 8th Spacecraft Charging Technology Conference
Instrumentation for Studies of Electron Emission and Charging from Insulators, C. D. Thomson, V. V. Zavyalov, and John R. Dennison; 8th Spacecraft Charging Technology Conference
Electron Emission Properties of Insulator Materials Pertinent to the International Space Station, C. D. Thomson, V. V. Zavyalov, John R. Dennison, and Jodie Corbridge; 8th Spacecraft Charging Technology Conference
2002
Calculation of Spectral Degradation Due to Contaminant Films on Infrared and Optical Sensors, L. Gamble, John R. Dennison, B. Wood, J. Herrick, and J. S. Dyer; Proceedings of the Society for Optics and Photonics
2000
Effects of Evolving Surface Contamination on Spacecraft Charging, W. Y. Chang, John R. Dennison, Jason Kite, and R. E. Davies; Proceedings of the 38th American Institute of Aeronautics and Astronautics Meeting on Aerospace Sciences
Measurements of Electronic Properties of Conducting Spacecraft Materials with Application to the Modeling of Spacecraft Charging, W. Y. Chang, JR Dennison, and Parker Judd; Proceedings of the 38th American Institute of Aeronautics and Astronautics Meeting on Aerospace Sciences