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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.

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2023

Electron Yield Measurements of Bulk Lunar Simulants, JR Dennison, Matthew Robertson, Heather Allen, and Thomas Keaton; 4th Workshop on Dust, Atmosphere, and Plasma Environment of the Moon and Small Bodies

Comparison of Beta and Gamma Radiation Damage on MicroSD Cards Using Unbiased Methods, Achal Duhoon, Brinley Packer, and JR Dennison; USU Spring Student Research Symposium

Measuring Permittivity of Thin Film Materials for Spacecraft Charging Applications, Cameron Eggleston, Anh Phan, and JR Dennison; American Physical Society Four Corners Meeting

Simple Emissivity Test Methods for Spacecraft Thermal Materials, Komachi Endoh and JR Dennison; American Physical Society Four Corners Meeting

A Light Bulb Moment for Radiation Induced Conductivity of Polyether-Etherketone, Zachary Gibson and JR Dennison; American Physical Society Four Corners Meeting

Surface Roughness and Electron Yield: Finding the Optimum Parameter for Correlation, Anh Phan, Matthew Robertson, Heather Allen, and JR Dennison; USU Spring Student Research Symposium

Electron Yield Analysis of Different Surface Morphologies, Matthew Robertson, Christopher Vega, Trace Taylor, Dallen DeWaal, and JR Dennison; American Physical Society Four Corners Meeting

2022

Electron Yield Measurements of Highly Insulating Granular Samples Related to Charging of Dusty Plasmas, Heather Allen, Thomas Keaton, Matthew Robertson, and JR Dennison; USU Fall Student Research Symposium

Electron Yield Measurements of Highly Insulating Granular Samples Related to Charging of Dusty Plasmas, Heather Allen, Thomas Keaton, Matthew Robertson, and JR Dennison; American Physical Society Four Corners Meeting

Modifications of Electron Yield Due to Interactions With the Space Environment, JR Dennison; 16th Spacecraft Charging Technology Conference

Testing the Underbelly of JWST: How Its Materials Weather the Harsh Space Environment, JR Dennison, Amberly Evans Jensen, and Crystal Tingey; Salt Lake Astronomical Society

Yield Measurements of Highly Insulating Granular Materials for Lunar Dust Applications, JR Dennison, Thomas Keaton, Heather Allen, and Matthew Robertson; NASA Lunar Science Institute Consortium-Extreme Environments SWG

On the Uncertainties of the Pulsed Electroacoustic Method, Zachary Gibson, Brian Beecham, and JR Dennison; IEEE 2022 International Conference on Dielectrics

Effect of Fluence on Electron Deposited Charge Distributions in Polytetrafluoroethylene, Zachary Gibson, JR Dennison, and Virginie Griseri; American Physical Society Four Corners Meeting

Application of the Pulsed Electroacoustic Method to Spacecraft Charging Issues, Zack Gibson and JR Dennison; Physics Colloquium

Analyzing Electron Yield Decay Curves With the Electron Emission Spectra, Matthew Robertson and JR Dennison; Proceedings of the Utah NASA Space Grant Consortium Research Symposium

Modeling the Effects of Surface Roughness on Electron Yield, Trace Taylor, Matthew Robertson, and JR Dennison; 16th Spacecraft Charging Technology Conference

2018

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Simulating Muscle Atrophy due to Microgravity and Ionizing Radiation, Lori Caldwell, Eryn Hanson, Alexandra H. Nelson, Charles Harding, JR Dennison, and Elizabeth Vargis; ASGRS

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Characterizing the Effects of Radiation on Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, JR Dennison, and Elizabeth Vargis

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Characterizing the Effects of Radiation on Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, JR Dennison, and Elizabeth Vargis

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Characterizing the Effects of Radiation on Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, JR Dennison, and Elizabeth Vargis; IBE

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Optical Transmission of Irradiated Optical Filters, JR Dennison, Ashlan Keeler, Brian Wood, and Jonh Mojica Decena; Four Corner Section Meeting of the American Physical Society

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Electron Yield of a Carbon-Composite Nanodielectric, JR Dennison, Matthew Robertson, Gregory Wilson, and Justin Christensen; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Space Environment Effects: Payoffs of UNSGC Research Infrastructure Awards, JR Dennison and Elizabeth Vargis; Utah NASA Space Grant Consortium Annual Meeting

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Real-Time Video Processing of Arcing Events to Determine Coincidence, JR Dennison, Gregory Wilson, Jonh Mojica Decena, and Brian Wood; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Charging Effects of High Voltage Probe Pulse on Pulsed Electroacoustic Measurements, Zachary Gibson, JR Dennison, Erick W. Griffiths, Lee Pearson, and Anthony Pearson; Four Corner Section Meeting of the American Physical Society

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Charging Effects of High Voltage Probe Pulse on Pulsed Electroacoustic Measurements, Zachary Gibson, JR Dennison, Lee Pearson, Erick Griffiths, and Anthony Pearson; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Optical Transmission of Irradiated Optical Filters, Ashlan Keeler, JR Dennison, Brian Wood, and Jonh Mojica Decena; Fall 2018 Four Corner Section Meeting of the American Physical Society

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The Effects of Beta Transition on Dielectric Breakdown in LDPE, Tyler Kippen, Allen Andersen, and JR Dennison; Utah State University Student Research Symposium 2018

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Long-Term Stability of Ion-Beam Treated Space Polymers In Geo-Simulated Environment, J Kleiman, Z Iskanderova, C Best, JR Dennison, and Brian Wood; 12th International Conference on Protection of Materials from Space Environment

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Long-Term Stability of Ion-Beam Treated Space Polymers in Geo-Simulated Environment, J Kleiman, Z Iskanderova, L Krishtein, JR Dennison, Brian Wood, and C Best; 12th International Conference on Protection of Materials from Space Environment

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Electron Yield of Low-Density Polyethylene, Jordan Lee and JR Dennison; UCUR

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Electron Yield Properties of Low-Density Polyethylene, Jordan Lee and JR Dennison; UCUR

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Characterizing Vibrationally Induced Damage of Carbon Nanotube Forests, Jordan Lee, Brian Wood, Ashlan Keeler, JR Dennison, and T. -C. Shen; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Characterizing Vibrationally Induced Damage of Carbon Nanotube Forests, Jordan Lee, Brian Wood, Ashlan Keeler, JR Dennison, and T. -C. Shen; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Rectifying Garbage-in Equals Garbage-Out Using a Secondary Electron Yield Materials Database, Phil Lundgreen and JR Dennison; Utah State University Physics Colloquium

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Detection and Classification of High Energy Beta Radiation Induced Damage of Raspberry Pi Zero Intended for OPAL CubeSat, Jonh Mojica Decena, JR Dennison, Brian Wood, Ryan J. Martineau, and Michael Taylor; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Detection and Classification of High Energy Beta Radiation Induced Damage of Raspberry Pi Zero Intended for OPAL CubeSat, Jonh Mojica Decena, Ryan J. Martineau, JR Dennison, Brian Wood, and Michael J. Taylor; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Simulating Microgravity and Space Radiation With a Rotary Cell Culture System (RCCS), Alexandra Nelson, Lori Caldwell, Eryn Hanson, JR Dennison, and Elizabeth Vargis; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Simulating Microgravity and Space Radiation With a Rotary Cell Culture System (RCCS), Alexandra Nelson, Lori Caldwell, Eryn Hanson, JR Dennison, and Elizabeth Vargis; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Electron Yield of Carbon-Composite Nanodielectric, Matthew Robertson, Justin Christensen, Gregory Wilson, and JR Dennison; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Incorporating Electron Range Approximations into Secondary Electron Emission Models, Gregory Wilson; UNSGC

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Electron Yield Measurements of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, and JR Dennison; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Electron Yield Measurements of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, and JR Dennison; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Time-Evolved Constant Voltage Conductivity Measurements of Common Spaceborne Polymeric Materials, Brian Wood, David King, and JR Dennison; The 15th Spacecraft Charging Technology Conference

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Characterization of Electron Yield Suppression with Carbon Nanotube Forest Grown on Silicon Substrates, Brian Wood, Jordan Lee, Justin Christensen, Gregory Wilson, JR Dennison, and T. -C. Shen; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Characterization of Electron Yield Suppression with Carbon Nanotube Forest Grown on Silicon Substrates, Brian Wood, Jordan Lee, Gregory Wilson, JR Dennison, and T. -C. Shen; Fall 2018 Four Corner Section Meeting of the American Physical Society

2017

An Enhanced Operational Definition of Dielectric Breakdown for DC Voltage Step-up Tests, Allen Andersen and JR Dennison; 2017 IEEE Conference on Electrical Insulation and Dielectric Phenomena—(CEIDP 2017)

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A New Physical Model for DC Partial Discharge in Polymeric Insulators, Allen Andersen and JR Dennison; American Physical Society March Meeting 2017

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Novel Physical Model for DC Partial Discharge in Polymeric Insulators, Allen Andersen and JR Dennison

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Using Quantile-Quantile Plots to Compare Experimental Apples and Oranges in Physics Labs, Allen Andersen and JR Dennison; Fall 2018 Four Corner Section Meeting of the American Physical Society

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Effects of Temperature and Radiation Dose on Radiation Induced Conductivity, JR Dennison; Sandia National Laboratories

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Effects of Temperature and Radiation Dose on Radiation Induced Conductivity, JR Dennison; Sandia National Laboratories: Electronic, Optical and Nano Materials Division

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Model for Charge Injection with Electron Beams Into Highly Disordered Insulating Materials, JR Dennison

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Model for Charge Injection with Electron Beams into Highly Disordered Insulating Materials, JR Dennison; Bull. American Physical Society

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Of Mice and Materials: Payoffs of UNSGC Research Infrastructure Awards, JR Dennison; Utah NASA Space Grant Consortium Annual Meeting

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Satellite Survivability in a Harsh Space Environment: A Materials Perspective, JR Dennison; Space Dynamics Laboratory (SDL)/USU Lecture Series

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Satellite Survivability in Space: A Materials Perspective, JR Dennison; SDL/USU Technical Lecture Series

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Of Mice and Materials: Payoffs of UNSGC Research Infrastructure Awards, JR Dennison, Kent Hartley, Lisa Phillipps, Justin Dekany, Robert H. Johnson, and James S. Dyer; Utah NASA Space Grant Consortium Annual Meeting

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Pulsed Electro-Acoustic Measurements of Charging and Relaxation in Low Density Polyethylene, Zachary Gibson; Four Corner Section Meeting of the American Physical Society

Pulsed Electro-Acoustic Measurements of Charging and Relaxation in Low Density Polyethylene, Zachary Gibson, Lee Pearson, Erick Griffiths, Anthony Pearson, and JR Dennison; American Physical Society Four Corner Section Meeting

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Reduction of Radiation Effects in Polymers Relaxation of Radiation Effects on the Optical Transmission of Polymers, Alexandra Hughlett, Tyler Kippen, and JR Dennison; SRS

Measuring and Modeling the Conductivity of Highly Insulating Materials, David King, Brian Wood, and JR Dennison; American Physical Society Four Corner Section Meeting

Development of Updated Spacecraft Materials Database for Mitigation of Charging Risk, Phillip Lundgreen and JR Dennison; American Physical Society Four Corner Section Meeting

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Dynamic Secondary Electron Emission in Dielectric/Conductor Mixed Coatings, Leandro Olano, Isabel Montero, Maria E. Davila, and JR Dennison; Mulcopim

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Dynamic secondary electron emission in dielectric/conductor mixed coatings, Leandro Olano, Isabel Montero, María E. Dávila, and JR Dennison; International Workshop on Multipactor, Corona and Passive Intermodulation (MULCOPIM), ESA/ESTEC

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Electron Yield of Challenging Materials: Low Density Polyethylene and Carbon-Composite Nanodielectrics, Matthew Robertson, Jordan Lee, and JR Dennison; Fall 2017 Utah State University Physics Department Colloquium

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Electron Yield of Challenging Materials: Low Density Polyethylene and Carbon-composite Nanodielectrics, Matthew Robertson, Jordan Lee, and JR Dennison; USU Physics Colloquium

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Hemispherical Grid Retarding Field Analyzer Redesign for Secondary Electron Emission Studies, Greg Wilson and JR Dennison; Utah NASA Space Grant Consortium Research Symposium

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Hemispherical Grid Retarding Field Analyzer Redesign for Secondary Electron Emission Studies, Gregory Wilson; Utah NASA Space Grant Consortium

Electron Yield Measurements of Vertically Aligned Multi-Walled Carbon Nanotubes, Brian Wood, JR Dennison, Justin Christensen, and Greg Wilson; American Physical Society Four Corners Meeting

2016

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Perspectives on the Distributions of ESD Breakdowns for Spacecraft Charging Applications, Allen Andersen, Krysta Moser, and JR Dennison

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Plasma Deflection Test Setup for E-Sail Propulsion Concept, Allen Andersen, Jason Vaughn, Todd Schneider, and Ken Wright; Fall 2016 Joint Meeting of the Four Corner and Texas Sections of the American Physical Society

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Temporal and Spatial Correlations in Electron-induced Arcs of Adjacent Dielectric Islands, Justin Christensen, JR Dennison, and Justin Dekany; 14th Spacecraft Charging Technology Conference

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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

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Validation of Enhanced Electron Yield Measurements of Low-Conductivity, High-Yield Materials, Justin Christensen, Gregory Wilson, and JR Dennison; Utah State University Student Research Symposium

LAM Phase I Review: Charge Storage and Transfer in Thin Film Ceramic Materials, JR Dennison; LAM Research

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Determining Intrinsic Electron Emission Yields of High Resistivity Ceramic Materials, JR Dennison, Justin Christensen, and Justin Dekany; 14th Spacecraft Charging Technology Conference Space Research and Technology Centre of the European Space Agency (ESA/ESTEC)

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Absolute Electron Emission Calibration: Round Robin Tests of Au and Polyimide, JR Dennison, Justin Christensen, Justin Dekany, Clint Thomson, Neal Nickles, Robert E. Davies, Mohamed Belhai, Kazuhiro Toyoda, Arifur R. Khan, Kazutaka Kawasaki, Shunsuke Inoue, Isabel Montero, Maria E. Davila, and Leandro Olano; 14th Spacecraft Charging Technology Conference

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The First Calibration of SBF Using Multi-Conjugate Adaptive Optics, Zachary Gibson, Joseph B. Jenson, John P. Blakeslee, and Mischa Schirmer; 227th American Astronomical Society Conference

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Extremely low secondary electron emission from metal/dielectric particulate coatings, Isabel Montero, L Aguilera, Leandro Olano, María E. Dávila, Luis Galán, JR Dennison, and Gregory Wilson; 14th Spacecraft Charging Technology Conference

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Dependence of Electrostatic Field Strength on Voltage Ramp Rate for Spacecraft Materials, Krysta Moser, Allen Andersen, and JR Dennison; 14th Spacecraft Charging Technology Conference

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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

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Space Environment Effects of Ionizing Radiation on Seed Germination and Growth, Alexander Souvall, JR Dennison, Takayuki Sakai, Yuta Takahashi, Midori Morikawa, Shusuke Okita, Akihiro Nagata, Toshihiro Kameda, and Shaunda Wenger; Four Corner Section Meeting of the American Physical Society

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Space Environment Effects of Ionizing Radiation on Seed Germination and Growth, Alex Souvall, Takuyuki Sakai, Takahiro Shimizu, Yuta Takahashi, Midori Morikawa, Shusuke Okita, Akihiro Nagata, Toshihiro Kameda, Shaunda Wenger, and JR Dennison; Fall 2016 Joint Meeting of the Four Corner and Texas Sections of the American Physical Society

2015

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Comparing Experimental Apples and Oranges with Quantile-Quantile Plots, Allen Andersen and JR Dennison; American Physical Society Four Corner Section Meeting

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Mixed Weibull Distribution Model of DC Dielectric Breakdowns with Dual Defect Modes, Allen Andersen and JR Dennison; 2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena

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Enhanced Electron Yield Measurements of Extremely Low-Conductivity High Yield Dielectrics, Justin Christensen and JR Dennison; American Physical Society Four Corner Section Meeting

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An Overview of the Dynamic Interplay between the Space Environment & Spacecraft Materials, JR Dennison; Laboratory of Spacecraft Environment Interaction Engineering

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Materials at the Atomic Scale: A Key to Exploring the Vast Reaches of Space, JR Dennison; Jet Propulsion Laboratory

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The Role of Space Materials Research in Spacecraft Charging and Satellite Survivability, JR Dennison; JAXA 12th Space Environment Symposium

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Pre-breakdown Arcing as a Proxy for DC Dielectric Breakdown Testing of Polymeric Insulators, JR Dennison and Allen Andersen; 2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena

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Model for Charge Injection with Electron Beams into Highly Disordered Insulating Materials, JR Dennison, Alec M. Sim, and Gregory Wilson; American Physical Society March Meeting 2015

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Radar Detection of Ultra High Energy Cosmic Rays: Searching for Coincident Events with Telescope Array Radar and Surface Detectors, Zachary Gibson, Rasha Abbasi, and John Belz; University of Utah Summer Research Symposium

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Electrical Properties of Annealed and Coated Boron Nitride under Electron Beam Irradiation, Kevin Guerch, Thierry Paulmier, JR Dennison, Justin Dekany, Sophia Guillemet-Fritsch, and Pascal Lenormand; Proceedings of the 13th International Symposium on Materials in the Space Environment

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Influence of Thermal Treatment on Electrical and Physical Properties of Coated Ceramics, K. Guerch, T. Paulmier, Justin Dekany, JR Dennison, S. Guillemet-Fritsch, and P. Lenormand; ISMSE 13

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Dependence of Electrostatic Field Strength on Voltage Ramp Rates for Spacecraft Materials, Krysta Moser, Allen Andersen, and JR Dennison; Utah State University Physics Colloquium

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Electron Penetration Range for Every Body, Anne Starley, Lisa Montierth Phillipps, and JR Dennison; USU Student Research Symposium

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Small Satellite Verification and Assessment Test Facility with Space Environments Effects Ground-testing Capabilities, Eric Stromberg, Crystal Frazier, Lisa Montierth Phillipps, Alex Souvall, JR Dennison, and James S. Dyer; 29th Annual AIAA/USU Conference on Small Satellites

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Calibration of Muon Detector for Coincidence Cathodoluminescence Experiments, Kenneth Zia and JR Dennison; USU Student Research Symposium