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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

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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

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Laboratory Simulations of Simultaneous Reduced Gravity and Ionizing Radiation Environments, Achal Duhoon and JR Dennison; Proceedings of the 16th Spacecraft Charging Technology Conference

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The Relevance of Pulsed Electroacoustic Measurements for Spacecraft Charging, Zachary Gibson and J. R. Dennison; Spacecraft Charging Technology Conference (2022)

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Analyzing Electron Yield Decay Curves with the Electron Emission Spectra, Matthew Robertson and JR Dennison

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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

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Total Ionizing Dose Tolerance of Micro-SD Cards for Small Satellite Missions, Achal Duhoon, J. R. Dennison, Jordan Lee, Satoshi Takemori, and Takahiro Yatabe

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Electron Yield Decay Curves for Analysis of Sample Charging and Neutralization, Matthew Robertson

2020

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Electron Yield of a Carbon Fiber Composite, Matthew Robertson

2019

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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

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Strategies for Determining Electron Yield Material Parameters for Spacecraft Charge Modeling, Phil Lundgreen and JR Dennison; Proceedings of the Applied Space Environments Conference 2019

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Surface Modification Influences on Electron Yield, Matthew Robertson and JR Dennison

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Electron Yield Measurements of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, and JR Dennison; Proceedings of the Applied Space Environments Conference 2019

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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

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Wireless Antenna Detection of Electrostatic Discharge Events, Allen Andersen and JR Dennison; 15th Spacecraft Charging Technology Conference

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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

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

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Incorporating Electron Range Approximations Into Secondary Electron Emission Models, Gregory Wilson; Utah NASA Space Grant Consortium

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Electron Range Computational Tool for Arbitrary Materials Over a Wide Energy Range, Gregory Wilson, JR Dennison, and Anne C. Starley

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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

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Time-Evolved Constant Voltage Conductivity Polymeric Materials, Brian Wood, JR Dennison, and David King; SCTC

2017

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Dynamic Secondary Electron Emission in Dielectric/Conductor Mixed Coatings, Leandro Olano, Maria E. Davila, A. Jacas, M A. Rodriguez, and JR Dennison; Mulcopim

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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

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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

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

2016

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Perspectives on the Distributions of ESD Breakdowns for Spacecraft Charging Applications, Allen Andersen, Krysta Moser, and JR Dennison; 14th Spacecraft Charging Technology Conference

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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

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Temporal and Spatial Correlations in Electron-induced Arcs of Adjacent Dielectric Islands, Justin Christensen, JR Dennison, and Justin Dekany; 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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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

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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

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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

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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, ESA/ESTEC

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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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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

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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

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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

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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

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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

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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

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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

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The Dynamic Interplay Between Spacecraft Charging, Space Environment Interactions and Evolving Materials, JR Dennison; Proceedings of the 13th Spacecraft Charging Technology Conference

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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

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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

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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)

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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)

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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)

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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)

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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

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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

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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

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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

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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

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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

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Low Temperature Cathodoluminescence of Space Observatory Materials, Amberly Evans Jensen, Gregory Wilson, Justin Dekany, and JR Dennison; 12th Spacecraft Charging Technology Conference

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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

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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

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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

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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

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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

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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

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The Effects of Surface Modification on Spacecraft Charging Parameters, Amberly Evans and John R. Dennison; Proceedings of the 11th Spacecraft Charging Technology Conference

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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

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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

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Charge Dynamics in Highly Insulating Space Craft Materials, Alec Sim and J. R. Dennison

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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

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Characterization of Electrical Materials Properties Related to Spacecraft Charging, John R. Dennison; Radiation capabilities for the Europa Jupiter System Missions Instrument Workshop

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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

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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

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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

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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

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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

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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

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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

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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

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Dependence of Resistivity in Low-Density Polyethylene on Space Environment Parameters, John R. Dennison and Jerilyn Brunson; 10th Spacecraft Charging and Technology Conference

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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

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Electron-Induced Electron Yields of Uncharged Insulating Materials, Ryan Carl Hoffmann, John R. Dennison, and Jennifer Albretsen; 10th Spacecraft Charging and Technology Conference

2006

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E-Field Dependent Conduction in Low-Density Polyethylene, Jerilyn Brunson and John R. Dennison; 11th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Inception of Snapover and Gas Induced Glow Discharges, J. T. Galofaro, B V. Vayner, W A. Degroot, D C. Ferguson, C D. Thomson, JR Dennison, and R E. Davies; American Institute of Aeronautics and Astronautics Meeting on Aerospace Sciences

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Inception of Snapover and Gas Induced Glow Discharges, J. T. Galofaro, B V. Vayner, D C. Ferguson, C D. Thomson, JR Dennison, and R E. Davies; ASA Technical Memorandum

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Instrumentation and Measurement of Secondary Electron Emission for Spacecraft Charging, Neal Nickles and John R. Dennison; Proceedings of the 6th Rocky Mountain NASA Space Grant Consortium Symposium

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Investigation of the First Snapover of Positively Biased Conductors in a Plasma, C. D. Thomson, John R. Dennison, R. E. Davies, D. C. Ferguson, J. T. Galafaro, and B. V. Vayner; Proceedings of the 38th American Institute of Aeronautics and Astronautics Meeting on Aerospace Sciences