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- Spacecraft charging (10)
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- Electron emission (5)
- Materials testing (5)
- Arcing (4)
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- Annealing (2)
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- Conductivity (2)
- Deep charging (2)
- ESD (2)
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Articles 31 - 60 of 296
Full-Text Articles in Physics
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, Michael Taylor
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, Michael Taylor
Presentations
No abstract provided.
Charging Effects Of High Voltage Probe Pulse On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Charging Effects Of High Voltage Probe Pulse On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Presentations
No abstract provided.
Real-Time Video Processing Of Arcing Events To Determine Coincidence, Jr Dennison, Gregory Wilson, Jonh Mojica Decena, Brian Wood
Real-Time Video Processing Of Arcing Events To Determine Coincidence, Jr Dennison, Gregory Wilson, Jonh Mojica Decena, Brian Wood
Presentations
No abstract provided.
Optical Transmission Of Irradiated Optical Filters, Ashlan Keeler, Jr Dennison, Brian Wood, Jonh Mojica Decena
Optical Transmission Of Irradiated Optical Filters, Ashlan Keeler, Jr Dennison, Brian Wood, Jonh Mojica Decena
Presentations
No abstract provided.
An Analysis Of Variations In Published Secondary Electron Yield Measurements Of Copper, Phil Lundgreen, Jr Dennison
An Analysis Of Variations In Published Secondary Electron Yield Measurements Of Copper, Phil Lundgreen, Jr Dennison
Posters
No abstract provided.
An Analysis Of Variations In Published Secondary Electron Yield Measurements Of Copper, Phil Lundgreen, Jr Dennison
An Analysis Of Variations In Published Secondary Electron Yield Measurements Of Copper, Phil Lundgreen, Jr Dennison
Posters
No abstract provided.
Characterization Of Electron Yield Suppression With Carbon Nanotube Forest Grown On Silicon Substrates, Brian Wood, Jordan Lee, Gregory Wilson, Jr Dennison, T. -C. Shen
Characterization Of Electron Yield Suppression With Carbon Nanotube Forest Grown On Silicon Substrates, Brian Wood, Jordan Lee, Gregory Wilson, Jr Dennison, T. -C. Shen
Presentations
No abstract provided.
Electron Yield Of A Carbon-Composite Nanodielectric, Jr Dennison, Matthew Robertson, Gregory Wilson, Justin Christensen
Electron Yield Of A Carbon-Composite Nanodielectric, Jr Dennison, Matthew Robertson, Gregory Wilson, Justin Christensen
Presentations
No abstract provided.
Simulating Microgravity And Space Radiation With A Rotary Cell Culture System (Rccs), Alexandra Nelson, Lori Caldwell, Eryn Hanson, Jr Dennison, Elizabeth Vargis
Simulating Microgravity And Space Radiation With A Rotary Cell Culture System (Rccs), Alexandra Nelson, Lori Caldwell, Eryn Hanson, Jr Dennison, Elizabeth Vargis
Presentations
No abstract provided.
Optical Transmission Of Irradiated Optical Filters, Jr Dennison, Ashlan Keeler, Brian Wood, Jonh Mojica Decena
Optical Transmission Of Irradiated Optical Filters, Jr Dennison, Ashlan Keeler, Brian Wood, Jonh Mojica Decena
Presentations
No abstract provided.
Electron Yield Measurements Of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, Jr Dennison
Electron Yield Measurements Of Multilayer Conductive Materials, Gregory Wilson, Matthew Robertson, Jordan Lee, Jr Dennison
Presentations
No abstract provided.
Electron Yield Of Carbon-Composite Nanodielectric, Matthew Robertson, Justin Christensen, Gregory Wilson, Jr Dennison
Electron Yield Of Carbon-Composite Nanodielectric, Matthew Robertson, Justin Christensen, Gregory Wilson, Jr Dennison
Presentations
No abstract provided.
Characterization Of The Effects Of Radiation On Skeletal And Smooth Muscle Cells, Lori Caldwell, Charles Harding, Jr Dennison, Elizabeth Vargis
Characterization Of The Effects Of Radiation On Skeletal And Smooth Muscle Cells, Lori Caldwell, Charles Harding, Jr Dennison, Elizabeth Vargis
Posters
Muscular atrophy is a serious issue for extended spaceflight. Understanding and preventing the role of ionizing radiation in skeletal muscle loss would preserve the strength and endurance of astronauts and enable longer duration space travel and exploration. Irradiation was performed in the USU material physics group's Space Suvivability Test Chamber. C2C12 and CRL-1999 cells were exposed to dosages ranging from 0.5 - 36.8 Gy. Cell viability and growth rate were measured immediately following irradiation.
Long-Term Stability Of Ion-Beam Treated Space Polymers In Geo-Simulated Environment, J Kleiman, Z Iskanderova, L Krishtein, Jr Dennison, Brian Wood, C Best
Long-Term Stability Of Ion-Beam Treated Space Polymers In Geo-Simulated Environment, J Kleiman, Z Iskanderova, L Krishtein, Jr Dennison, Brian Wood, C Best
Presentations
No abstract provided.
Long-Term Stability Of Ion-Beam Treated Space Polymers In Geo-Simulated Environment, J Kleiman, Z Iskanderova, C Best, Jr Dennison, Brian Wood
Long-Term Stability Of Ion-Beam Treated Space Polymers In Geo-Simulated Environment, J Kleiman, Z Iskanderova, C Best, Jr Dennison, Brian Wood
Presentations
It is a real challenge to reproduce various space environment conditions in ground-based facilities for testing of external space system materials and elements. This is due to the variety and complexity of the space environment conditions and their effects on materials and structures. The reliability of test results depends on accurate simulation of the critical factors and effects of the space environment for a particular mission. The main objectives of the simulation testing are to get the test results that are adequate to the material durability and functional behavior in a space environment.
As part of a large, multi-year program, …
Wireless Antenna Detection Of Electrostatic Discharge Events, Allen Andersen, Jr Dennison
Wireless Antenna Detection Of Electrostatic Discharge Events, Allen Andersen, Jr Dennison
Conference Proceedings
Wireless intra-spacecraft communication technology is being developed as a weight-saving and design-simplifying measure for signal transfer on space missions. One consideration for this new technology is its interaction with space-environment induced electrostatic discharges (ESD). The short time scales of spacecraft ESD events results in broad frequency signals that can interact with wireless antennae. These interactions present a source of signal noise. However, they may also present a possibility of in-flight wireless ESD monitoring.
We present laboratory measurements of arcing on common spacecraft insulators using commercially available single band 2.4 GHz and dual band 2.4/5.8 GHz Wi-Fi antennas. These wireless detections …
Secondary Electron Yield Measurements Of Carbon Nanotube Forests: Dependence On Morphology And Substrate, Brian Wood, Justin Christensen, Gregory Wilson, Jr Dennison, T. -C. Shen
Secondary Electron Yield Measurements Of Carbon Nanotube Forests: Dependence On Morphology And Substrate, Brian Wood, Justin Christensen, Gregory Wilson, Jr Dennison, T. -C. Shen
Posters
No abstract provided.
Parameterization Of Secondary And Backscattered Electron Yields For Spacecraft Charging, Justin Christensen, Phil Lundgreen, Jr Dennison
Parameterization Of Secondary And Backscattered Electron Yields For Spacecraft Charging, Justin Christensen, Phil Lundgreen, Jr Dennison
Posters
No abstract provided.
Space Environment Effects: Payoffs Of Unsgc Research Infrastructure Awards, Jr Dennison, Elizabeth Vargis
Space Environment Effects: Payoffs Of Unsgc Research Infrastructure Awards, Jr Dennison, Elizabeth Vargis
Presentations
No abstract provided.
Tests Of Radiation Damage Threshold Of Raspberry Pi Zerio In Leo Environment For Opal Cubesat Project, Jonh Mojica Decena, Jr Dennison, Brian Wood, Ryan J. Martineau, Michael J. Taylor
Tests Of Radiation Damage Threshold Of Raspberry Pi Zerio In Leo Environment For Opal Cubesat Project, Jonh Mojica Decena, Jr Dennison, Brian Wood, Ryan J. Martineau, Michael J. Taylor
Posters
No abstract provided.
Analysis Of Electron Yield Properties Of Low-Density Polyethylene, Jordan Lee, Jr Dennison
Analysis Of Electron Yield Properties Of Low-Density Polyethylene, Jordan Lee, Jr Dennison
Posters
No abstract provided.
Analysis Of Electron Yield Properties Of Low-Density Polyethylene, Jr Dennison, Jordan Lee
Analysis Of Electron Yield Properties Of Low-Density Polyethylene, Jr Dennison, Jordan Lee
Posters
At extremely high altitudes, spacecraft are submitted to solar radiation of varying charged-particle fluxes. This radiation can induce charging of the spacecraft itself, creating unwanted and disastrous effects on electrical components from electrostatic breakdown or arc-induced damage of structural or optical components. To prevent these effects, space-like environment tests are performed on materials to understand how they interact with the space plasma environment.
Effects Of Acoustic Coupling Layer Electrical Conducitivity On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Effects Of Acoustic Coupling Layer Electrical Conducitivity On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Posters
No abstract provided.
Radiation Damage Threshold Of Satellite Cots Components: Raspberry Pi Zero For Opal Cubesat, Jonh Mojica Decena, Brian Wood, Ryan J. Martineau, Jr Dennison, Michael Tayor
Radiation Damage Threshold Of Satellite Cots Components: Raspberry Pi Zero For Opal Cubesat, Jonh Mojica Decena, Brian Wood, Ryan J. Martineau, Jr Dennison, Michael Tayor
Posters
The use of inexpensive microprocessors or commercial of the shelf (COTS) components is one of the most common cost-saving methods in the constructions of CubeSats. Design of electronics that can maintain full functionality over the duration of the mission requires careful determination of the space radiation environment and total ionizing dose (TID) delivered to the components. Larger, more expensive or longer mission satellites tend to use more expensive components than the ones used in CubeSat to assure reliability. Radiation survivability of a Raspberry Pi Zero was studied with the USU Space Survivability Test Chamber using 0.2 to 2.5 MeV beta …
Radiation Damage Threshold Of Satellite Cots Components: Raspberry Pi Zero For Opal Cubesat, Jonh Mojica Decena, Brian Wood, Ryan J. Martineau, Michael Tayor, Jr Dennison
Radiation Damage Threshold Of Satellite Cots Components: Raspberry Pi Zero For Opal Cubesat, Jonh Mojica Decena, Brian Wood, Ryan J. Martineau, Michael Tayor, Jr Dennison
Posters
No abstract provided.
The Effects Of Beta Transition On Dielectric Breakdown In Ldpe, Tyler Kippen, Allen Andersen, Jr Dennison
The Effects Of Beta Transition On Dielectric Breakdown In Ldpe, Tyler Kippen, Allen Andersen, Jr Dennison
Presentations
No abstract provided.
Characterizing The Effects Of Radiation On Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, Jr Dennison, Elizabeth Vargis
Characterizing The Effects Of Radiation On Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, Jr Dennison, Elizabeth Vargis
Presentations
No abstract provided.
Effects Of Acoustic Coupling Layer Electrical Conductivity On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Effects Of Acoustic Coupling Layer Electrical Conductivity On Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson
Posters
The spatial resolution of Pulsed Electroacoustic (PEA) measurements can be limited by the acoustic thickness of the coupling material coupling the sample to the detector assembly. Our investigations studied the effect of adhesive material and thickness to optimize the quality of the PEA signal.
Time-Evolved Constant Voltage Conductivity Measurements Of Common Spaceborne Polymeric Materials, Brian Wood, David King, Jr Dennison
Time-Evolved Constant Voltage Conductivity Measurements Of Common Spaceborne Polymeric Materials, Brian Wood, David King, Jr Dennison
Presentations
No abstract provided.
Sensor Design For In-Flight Testing Of Small-Satellite Thruster, Alex Souvall
Sensor Design For In-Flight Testing Of Small-Satellite Thruster, Alex Souvall
Senior Theses and Projects
No abstract provided.