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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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2004

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 Alec Sim; The effect of low energy electron and UV/VIS radiation aging on the electron emission properties and breakdown of thin-film dielectrics

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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)

Measurement of Charge Storage Decay Time and Resistivity of Spacecraft Insulators, Gregory Nath and JR Dennison; Measurement of Charge Storage Decay Time and Resistivity of Spacecraft Insulators

Health Effects of Low-Level Radiation and the Validity of the Linear No Threshold Hypothesis (LNTH), Michael Nay and JR Dennison; Health Effects of Low-Level Radiation and the Validity of the Linear No Threshold Hypothesis (LNTH)

Ring Statistics Determined with the Embedded Ring Approach: Anneal Graphitic Amorphous Carbon, Sterling Smith and JR Dennison; Ring Statistics Determined with the Embedded Ring Approach: Anneal Graphitic Amorphous Carbon

The Embedded Ring Approach Applied to Graphitic Amorphous Carbon, Sterling Smith and JR Dennison; The Embedded Ring Approach Applied to Graphitic Amorphous Carbon

2003

Conducivity Measurements of Thin Film Insulating Spacecraft Materials, Jerilyn Brunson and JR Dennison; Conducivity Measurements of Thin Film Insulating Spacecraft Materials

Electron Emission and Small Bandgap Semiconductors, Jodie Corbridge and JR Dennison; Electron Emission and Small Bandgap Semiconductors

Secondary Electron Emission Of Graphtic Carbon Small Bandgap Semiconductors, Jodie Corbridge and JR Dennison; Secondary Electron Emission Of Graphtic Carbon Small Bandgap Semiconductors

Secondary Electron Emission of Graphtic Carbon Small Bandgap Semiconductors, Jodie Corbridge and JR Dennison; Secondary Electron Emission of Graphtic Carbon Small Bandgap Semiconductors

Designing and Constructing an Apparatus for Measuring Resistivity of Insulating Spacecraft Materials, Eric Crapo and JR Dennison; Designing and Constructing an Apparatus for Measuring Resistivity of Insulating Spacecraft Materials

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Charge Storage, Conductivity and Charge Profiles of Insulators As Related to Spacecraft Charging, JR 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, JR 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 SpacecraftCharging, A. R. Fredrickson and JR Dennison; Measurement of Conductivity and Charge Storage in Insulators Related to SpacecraftCharging

Measurement of Conductivity and Charge Storage in Insulators Related to Spacecraft Charging, A. R. Fredrickson and JR Dennison; Measurement of Conductivity and Charge Storage in Insulators Related to Spacecraft Charging

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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 JR Dennison; 9th Rocky Mountain NASA Space Grant Consortium Symposium

Modeling Science Learning at Utah State University: Physics department takes integrated approach to teaching and learning with Mathcad, Beth Porter and JR Dennison; Modeling Science Learning at Utah State University: Physics department takes integrated approach to teaching and learning with Mathcad

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Comparison of Classical and Charge Storage Methods for Determining Conductivity of Thin Film Insulators, Prasanna Swaminathan, A. R. Frederickson, JR 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 JR 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, JR Dennison, and Jodie Corbridge; 8th Spacecraft Charging Technology Conference

2002

Secondary Electron Emission of Annealed Graphitic Amorphous Carbon, Jodie Corbridge and JR Dennison; Secondary Electron Emission of Annealed Graphitic Amorphous Carbon

Secondary Electron Emission of Annealed Graphitic Amorphous Carbon, Jodie Corbridge, Neal Nickles, Clint Thomson, Robert Berry, and JR Dennison; Secondary Electron Emission of Annealed Graphitic Amorphous Carbon

Measurement of Angle-Resolved Secondary Electron Spectra from Solids, R. E. Davies, Jason Kite, and JR Dennison; Measurement of Angle-Resolved Secondary Electron Spectra from Solids

Ground-based Measurements Simulating Space Environment Interaction of Materials and SEE Spacecraft Charging Materials Database for Spacecraft Charging Modeling, JR Dennison, Albert Chang, Neal Nickles, C. D. Thomson, Jason Kite, and Robert Davies; Ground-based Measurements Simulating Space Environment Interaction of Materials and SEE Spacecraft Charging Materials Database for Spacecraft Charging Modeling

Database of Electronic Properties of Spacecraft Materials for the NASA SEE Spacecraft Charge Collector Knowledgebase, JR Dennison, Albert Chang, Neal Nickles, C. D. Thomson, Jason Kite, Robert Davies, Jodie Corbridge, and Carl Ellsworth; Database of Electronic Properties of Spacecraft Materials for the NASA SEE Spacecraft Charge Collector Knowledgebase

Final Report Part II1: Materials Reports, JR Dennison, W. Y. Chang, Neal Nickles, Jason Kite, C. D. Thomson, Jodie Corbridge, and Carl Ellsworth; Electronic Properties of Materials with Application to Spacecraft Charging

Proposal for Measurements of Charge Storage Decay Time and Resistivity of Spacecraft Insulators, JR Dennison and Robb Frederickson; Proposal for Measurements of Charge Storage Decay Time and Resistivity of Spacecraft Insulators

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Calculation of Spectral Degradation Due to Contaminant Films on Infrared and Optical Sensors, L. Gamble, JR Dennison, B. Wood, J. Herrick, and J. S. Dyer; Proceedings of the Society for Optics and Photonics

Experimental Studies of the Secondary Electron Emission Properties of Dielectrics, Clint Thomson, JR Dennison, and Ralph Curruth; Experimental Studies of the Secondary Electron Emission Properties of Dielectrics

2001

Automation of Ultra High Vacuum Chamber Pumps, Gauges and Valving for the Mitigation of Power Instabilities, Matthew B. Redd and JR Dennison; Automation of Ultra High Vacuum Chamber Pumps, Gauges and Valving for the Mitigation of Power Instabilities

2000

An Improved Database of Electronic Properties ofSpacecraft Materials for Modeling of Spacecraft Charging, W. Y. Chang, Neal Nickles, JR Dennison, and C. D. Thomson; 7th Spacecraft Charging Technology Conference

Development of Improved Faraday Cup for Measurements of Charged Particle Energy and Angle-Resolved Cross Sections, Kendall Ford and JR Dennison; Development of Improved Faraday Cup for Measurements of Charged Particle Energy and Angle-Resolved Cross Sections

Effects of Evolving Surface Contamination On Spacecraft Charging, Jason Kite, JR Dennison, W. Y. Chang, and R. E. Davies; Effects of Evolving Surface Contamination On Spacecraft Charging

A High Resolution Faraday Cup Charged Particle Spectrometer, Jason Kite, Kendall Ford, and JR Dennison; A High Resolution Faraday Cup Charged Particle Spectrometer

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

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Investigation of the FirstSnapover of Positively Biased Conductors in a Plasma, C. D. Thomson, JR 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

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Snapover: Anomalous Plasma Current Collection by Positively Biased Conductors when Surrounded by a Dielectric, Clint Thomson and JR Dennison; 6th Rocky Mountain NASA Space Grant Consortium Symposium

1999

Using Computer-assisted Mathematics to Enhance Structured Problem-solving Techniques in Physics, JR Dennison, D. Mark Riffe, and Neal Nickles; Using Computer-assisted Mathematics to Enhance Structured Problem-solving Techniques in Physics

Procurement and characterization of high purity materials for measurement in UHV, Parker Judd and JR Dennison; Procurement and characterization of high purity materials for measurement in UHV

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EFFECTS OF SPACECRAFT POTENTIAL ON SECONDARY ELECTRON YIELDS IN GEOSYNCHRONOUS ORBIT, Neal E. Nickles; 5th Rocky Mountain NASA Space Grant Consortium NASA Fellowship Symposium

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The Conductor-Dielectric Junctions in a Low Density Plasma, B. V. Vayner, J. T. Galofaro, D. C. Ferguson, Win de Groot, Clint Thomson, JR Dennison, and Robert Davies; NASA Technical Memorandum

1998

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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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Utah State University Ground-based Test Facility for Study ofElectronic Properties of Spacecraft Materials, W. Y. Chang, JR Dennison, Neal Nickles, and R. E. Davies; Utah State University Ground-based Test Facility for Study ofElectronic Properties of Spacecraft Materials

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Effects of the Evolution of Spacecraft Surfaces on Secondary Electron Emission andSpacecraft Charging, R. E. Davies and JR Dennison; Proceedings of the 4th Rocky Mountain NASA Space Grant Consortium Fellowship Symposium

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

A spin Lattice Model for Physisorbed Dipolar Molecules on Ionic Substrates, JR Dennison, Jason Kite, and T. E. Burns; A spin Lattice Model for Physisorbed Dipolar Molecules on Ionic Substrates

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

Energy- and Angle-resolved Secondary Electron Cross Sections and Applications to Spacecraft Charging, Neal Nickles, R. E. Davies, and JR Dennison; Energy- and Angle-resolved Secondary Electron Cross Sections and Applications to Spacecraft Charging

Sample Bias Influence on Angular-Resolved Secondary Electron Emission, Neal Nickles, R. E. Davies, and JR Dennison; Sample Bias Influence on Angular-Resolved Secondary Electron Emission

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Secondary Electron Emission and Spacecraft Charging, Neal Nickles and JR Dennison; 4th Rocky Mountain NASA Space Grant Consortium Fellowship Symposium

Problem Solving Tutorial, Neal Nickles, JR Dennison, D. Mark Riffe, and Beth Porter; Problem Solving Tutorial

A Foundation for the Integration of Mathcad into the Undergraduate Physics Curriculum, D. Mark Riffe, JR Dennison, and Neal Nickles; A Foundation for the Integration of Mathcad into the Undergraduate Physics Curriculum

1997

Introduction to Scientific Computing: Introductory Physics Handbook, N. Nickles, JR Dennison, and D. Mark Riffe; Introduction to Scientific Computing: Introductory Physics Handbook

Introduction to Scientific Computing: Modern Physics Handbook, D. Mark Riffe, JR Dennison, N. Nickels, and T. E. Burns; Introduction to Scientific Computing: Modern Physics Handbook

1996

Amusement Park Physics as a Year-round Tool: A Workshop for Middle and High School Teachers, T. E. Burns, JR Dennison, Jill Marshall, and Jessica Tams; Amusement Park Physics as a Year-round Tool: A Workshop for Middle and High School Teachers

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

Materials for Innovative Light-weight Structures in Space, JR Dennison, J. Sojka, T. E. Burns, H. Chi, M. Adams, W. Jiang, and J. Humpherys; Materials for Innovative Light-weight Structures in Space

1990

Vibrational Dynamics of Adsorbed Films Using Fourier Transform Infrared Spectroscopy Metal Light Pipe Technique, JR Dennison, Torsten Will, and W. N. Hansen; Vibrational Dynamics of Adsorbed Films Using Fourier Transform Infrared Spectroscopy Metal Light Pipe Technique

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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

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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

Layer-by-layer Growth of Solid Argon Films on Graphite as Studied by Neutron Diffraction, J. Z. Larese, Q. M. Zhang, L. Passell, J. M. Hastings, JR Dennison, and H. Taub; Physical Review B

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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

1986

Evidence of a Monolayer Liquid Crystal Phase of Hexane Adsorbed on Graphite, J. C. Newton, JR Dennison, S. K. Wang, R. Wang, H. Taub, and H. Shechter; Applied Physics Communications

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