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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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2017

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

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Density of State Models and Temperature Dependence of Radiation Induced Conductivity, Jodie Corbridge Gillespie, JR Dennison, and Alec M. Sim; IEEE Tran. Plasma Science

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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 Anthony C. Pearson; IEEE Transactions of Plasma Science

2015

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

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

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Electrostatic Discharge and Endurance Time Measurements of Spacecraft Materials: A Defect-Driven Dynamic Model, Allen Andersen, JR Dennison, Alec Sim, and Charles Sim; IEEE Tran. Plasma Science

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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; IEEE Tran. Plasma Science

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Dynamic Interplay Between Spacecraft Charging, Space Environment Interactions and Evolving Materials, JR Dennison; IEEE Tran. Plasma Science

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Defects Density of States Model of Cathodoluminescent Intensity and Spectra of Disordered SiO2, Amberly Evans Jensen and JR Dennison; IEEE Tran. Plasma Science

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Electrical Properties of Annealed and Coated Boron Nitride Under Electron Beam Irradiation, Kevin Guerch, Theirry Paulmier, JR Dennison, Justin Dekany, Pascal Lenormand, and Sophie Guillemet-Fritsch; Journal of Spacecraft and Rockets

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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; Journal of Spacecrafts and Rockets

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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Ultrahigh Vacuum Cryostat System for Extended Low Temperature Space Environment Testing, Justin Dekany, Robert H. Johnson, Gregory Wilson, Amberly Evans Jensen, and JR Dennison; IEEE Transactions on Plasma Science

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Low Temperature Cathodoluminescence in Disordered SiO2, Amberly Evans Jensen, JR Dennison, Gregory Wilson, and Justin Dekany; IEEE Transactions on Plasma Science

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Feasibility of Detecting Spacecraft Charging and Arcing by Remote Sensing, Dale C. Ferguson, Jeremy Murray Krezan, David A. Barton, JR Dennison, and Stephen Gregory; J. Spacecraft and Rockets

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In Situ Surface Voltage Measurements of Dielectrics Under Electron Beam Irradiation, Joshua L. Hodges, JR Dennison, Gregory Wilson, Amberly Evans Jensen, and Alec Sim; IEEE Transactions on Plasma Science

2013

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Electron Transport Models and Precision Measurements with the Constant Voltage Conductivity Method, Justin Dekany, JR Dennison, Alec Sim, and Jerilyn Brunson; IEEE Transactions on Plasma Science

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Small-Scale Simulation Chamber for Space Environment Survivability Testing, Robert H. Johnson, Lisa D. Montierth, JR Dennison, James S. Dyer, and Ethan R. Lindstrom; IEEE Transactions on Plasma Science

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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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Electron Beam Induced Luminescence of SiO2 Optical Coatings, JR 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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Charge Enhanced Contamination and Environmental Degradation of MISSE-6 SUSpECS Materials, JR Dennison, Amberly Evans Jensen, Danielle Fulmer, and Joshua L. Hodges; IEEE Transactions on Plasma Science

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The Effects of Surface Modification on Spacecraft Charging Parameters, Amberly Evans Jensen and JR Dennison; IEEE Transactions on Plasma Science

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Measurement Methods of Electron Emission Over a Full Range of Sample Charging, R. Hoffmann and JR Dennison; IEEE Transactions on Plasma Science

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Approximation of Range in Materials as a Function of Incident Electron Energy, Gregory Wilson and JR Dennison; IEEE Transactions on Plasma Science

2011

Electron Induced Luminescence of InsulatingPolymeric Materials, Douglas Ball, Alec Sim, Josh Hodges, Ryan Hoffmann, and JR Dennison; Electron Induced Luminescence of InsulatingPolymeric Materials

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Observations on braided thin wire nucleate boiling in microgravity, Justin P. Koeln, Jeffrey C. Boulware, Heng Ban, and JR Dennison; International Journal of Heat and Fluid Flow

2010

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Spacecraft Coating-Induced Charging: A Materials and Modeling Study of Environmental Extreme, Michelle M. Donegan, Jennifer L. Sample, JR Dennison, and R. Hoffman; Journal of Spacecraft and Rockets

2009

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Temperature Dependence of Radiation Induced Conductivity in Insulators, JR Dennison, Jodie Corbridge Gillespie, Joshua Hodges, Ryan C. Hoffman, J Abott, Steven Hart, and Alan W. Hunt; American Institute of Physics Conference Proceedings Series

2008

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Temperature and Electric Field Dependence of Conduction in Low-Density Polyethylene, JR Dennison and Jerilyn Brunson; IEEE Transaction on Plasma Science

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Deep Dielectric Charging of Spacecraft Polymers by Energetic Protons, Nelson W. Green and JR Dennison; IEEE Transaction on Plasma Science

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Low-Fluence Electron Yields of Highly Insulating Materials, Ryan Hoffmann, JR Dennison, Clint D. Thomson, and Jennifer Albretson; IEEE Trans. on Plasma Sci.

2006

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On the Computation of Secondary Electron Emission Models, Sebastien Clerc, JR Dennison, Ryan Hoffmann, and Jonathon Abbott; IEEE Transaction on Plasma Science

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Methods For High Resistivity Measurements Related To Spacecraft Charging, JR Dennison, Jerilyn Brunson, Prasanna Swaminathan, Nelson Green, and A Robb Frederickson; IEEE Tran. Plasma Science

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Evolution of the Electron Yield Curves of Insulators as a Function of Impinging Electron Fluence and Energy, JR Dennison, Alec Sim, and Clint Thomson; IEEE Transaction on Plasma Science

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Experimentally Derived Resistivity for Dielectric Samples from the CRRES Internal Discharge Monitor, Nelson W. Green, A. Robb Frederickson, and JR Dennison; IEEE Transaction on Plasma Science

2004

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Extended BEG model of halogenated methanes physisorbed on ionic crystals, T. E. Burns, JR Dennison, and Jason Kite; Surface Science

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The Effect of Low Energy Electron and UV/VIS Radiation Aging on the Electron Emission Properties and Breakdown of Thin-film Dielectrics, JR Dennison, C. D. Thomson, and Alex Sim; Proceedings of the 8th IEEE Dielectrics and Electrical Insulation Society (DEIS) International Conference on Solid Dielectrics (ICSD)

2003

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Measurement of Conductivity and Charge Storage in Insulators Related to Spacecraft Charging, A Robb Frederickson and JR Dennison; IEEE Transaction on Nuclear Science

2000

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Utah State University Ground-based Test Facility for Study of Electronic Properties of Spacecraft Materials, W. Y. Chang, JR Dennison, Neal Nickles, and R. E. Davies; Proceedings of the 6th Spacecraft Charging Technology Conference

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Evolution of secondary electron emission characteristics of spacecraft surfaces: Importance to spacecraft charging, R. E. Davies and JR Dennison; Proceedings of the 6th Spacecraft Charging Technology Conference

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Applications of Secondary Electron Energy- and Angular-Distributions to Spacecraft Charging, Neal Nickles, R. E. Davies, and JR Dennison; Proceedings of the 6th Spacecraft Charging Technology Conference

1999

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Synchrotron X-ray Diffraction of Layering Transitions of Multilayer Nitrogen Physisorbed on Graphite, T. E. Burns, JR Dennison, and S. N. Ehrlich; Langmuir

1998

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Physisorbed CO on ionic crystals: An extended BEG spin-lattice model of adsorbed dipolar molecules, T. E. Burns and JR Dennison; Surface Science

1997

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Evolution of Secondary Electron Emission Characteristics of Spacecraft Surfaces, R. E. Davies and JR Dennison; Journal of Spacecraft and Rockets

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An Embedded Ring Approach to the Vibrational Dynamics of Amorphous Materials, JR Dennison and T. E. Doyle; Carbon

1996

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Building a Competition Buzzer Set, JR Dennison and Richard Davis; The Physics Teacher

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Raman Spectroscopy of Carbon Materials, JR Dennison, Mark Holtz, and Greg Swain; Spectroscopy

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Application of (e,2e) Spectroscopy to the Electronic Structure of Valence Electrons in Crystalline and Amorphous Solids, JR Dennison and A. L. Ritter; J. Electron Spec. Rel. Phenom.

1995

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Vibrational Dynamics and Structure of Amorphous Carbon Modeled Using the Embedded Ring Approach, T. E. Doyle and JR Dennison; Physical Review B

1992

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Ultrahigh Vacuum Chamber for Synchrotron X-ray Diffraction from Films Adsorbed on Single-crystal Surfaces, JR Dennison, S. K. Wang, and S. N. Ehrlich; Rev. Sci. Instrum.

1990

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Corrugation in the nitrogen-graphite potential probed by inelastic neutron scattering, F. Y. Hansen, L. W. Bruch, H. Taub, V. L. Frank, H. J. Lauter, and JR Dennison; Physical Review Letters

1989

Lattice Dynamics of Nitrogen onGraphite Investigated by Inelastic Neutron Scattering, V. L. Frank, H. J. Lauter, F. Y. Hansen, H. Taub, L. W. Bruch, and JR Dennison; Proceedings of the Conference PHONONS

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Nature of Carbon-Carbon Bonding in Evaporated and Ion-Sputtered (Diamondlike) Amorphous Carbon from (e, 2e) Spectroscopy, Chao Gao, Yun Yu Wang, A. L. Ritter, and JR Dennison; Physical Review Letters

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Multi-layer Structure of Nitrogen Adsorbed on Graphite, S. K. Wang, J. C. Newton, R. Wang, H. Taub, JR Dennison, and H. Shechter; Physical Review B

1988

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Anomalous Layering of Fe(C0) Adsorbed on Graphite, JR Dennison, H. Taub, F. Y. Hansen, H. Shechter, and R. Brener; Physical Review B

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Spectral Momentum Density from Graphite from (e,2e) Spectroscopy: Comparison with First Principles Calculations, Chao Gao, A. L. Ritter, JR Dennison, and N. A. W. Holzwarth; Phys. Rev.

1984

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An Spectrometer for Investigating the Spectral Momentum Density of Thin Films, A. L. Ritter, JR Dennison, and J. Dunn; Review of Scientific Instruments

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The Spectral Momentum Density of Amorphous Carbon from (e, 2e) Spectroscopy, A. L. Ritter, JR Dennison, and R. Jones; Physical Review Letters