Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Dennison, A. R."'
Autor:
Gibson, Zachary, Dennison, J. R.
Publikováno v:
Physics Student Research
The magnitude and spatial distribution of charge embedded in dielectric materials and the evolution of the charge distributions with time are at the heart of understanding spacecraft charging. Spacecraft materials are charged primarily by incident fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::cac44ef6c77d27a965328e69cc1c5840
https://digitalcommons.usu.edu/phys_stures/34
https://digitalcommons.usu.edu/phys_stures/34
Autor:
Lundgreen, Phil, Dennison, John R.
Publikováno v:
All Physics Faculty Publications
Accurate modeling of spacecraft charging is essential to mitigate well‐known and all‐too‐common deleterious and costly effects on spacecraft resulting from charging induced by interactions with the space plasma environment. This paper addresses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::2008464e12176634f03c94d5d5235596
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=3269&context=physics_facpub
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=3269&context=physics_facpub
Publikováno v:
Posters
Changes in optical transmission of polymers over time were studied to determine the factors contributing to relaxation of defect states induced by intense radiation doses. Samples of low density polyethylene (LDPE), polyether ether ketone (PEEK), pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::b6891cff364becd534def94871a9031a
https://digitalcommons.usu.edu/mp_post/48
https://digitalcommons.usu.edu/mp_post/48
Publikováno v:
All Physics Faculty Publications
New instrumentation has been developed for non- contact, in vacuo measurements of the electron beam-induced surface voltage as a function of time and position for non- conductive spacecraft materials in a simulated space environment. The novel compac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::d0906a57e18c0cb43a834300def734e1
https://digitalcommons.usu.edu/physics_facpub/1998
https://digitalcommons.usu.edu/physics_facpub/1998
Publikováno v:
All Physics Faculty Presentations
Charge buildup on insulating materials in the space environment can produce long exposure to electric fields, which can lead to Electrostatic Discharge (ESD). Charge buildup is the leading cause of spacecraft failure due to space environment interact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::1c2634eefff741a0fb3136e857de852b
https://digitalcommons.usu.edu/physics_facpres/122
https://digitalcommons.usu.edu/physics_facpres/122
Publikováno v:
All Physics Faculty Presentations
Measurements of the charge distribution in electron-bombarded, thin-film, multilayered dielectric samples showed that charging of multilayered materials evolves with time and is highly dependent on incident energy; this is driven by electron penetrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::a1eccb76302b5f025a614057c4657c45
https://digitalcommons.usu.edu/physics_facpres/116
https://digitalcommons.usu.edu/physics_facpres/116
Publikováno v:
All Physics Faculty Publications
All Physics Faculty Presentations
All Physics Faculty Presentations
Optical coatings of disordered thin film SiO2/SiOx dielectric samples on reflective metal substrates exhibited cathodoluminescence under electron beam irradiation. Measurements of the absolute radiance and emission spectra as functions of incident el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::38138578e1c14c9c10477e2a111eb15b
https://digitalcommons.usu.edu/physics_facpub/1444
https://digitalcommons.usu.edu/physics_facpub/1444
Publikováno v:
Posters
All Physics Faculty Publications
All Physics Faculty Publications
The conductivity of the material is a key transport parameter in spacecraft charging that determines how deposited charge will redistribute throughout the system, how rapidly charge imbalances will dissipate, and what equilibrium potential will be es
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1b2a645e5ff5c491922ca52be94456d3
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1000&context=mp_post
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1000&context=mp_post
Publikováno v:
Presentations
All Physics Faculty Publications
All Physics Faculty Publications
Measurements of the charge distribution in electron-bombarded, thin-film, multilayer dielectric samples showed that charging of multilayered materials evolves with time and is highly dependent on incident energy; this is driven by electron penetratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::107c90c751965d037ec0e7fa34a0a207
https://digitalcommons.usu.edu/mp_presentations/56
https://digitalcommons.usu.edu/mp_presentations/56
Autor:
Dennison, John R.
Publikováno v:
All Physics Faculty Presentations
Samples that were part of the Materials International Space Station Experiment (MISSE) experienced varying effects whilst exposed to the space environment; perhaps the most intriguing effect was the crater created by a micrometeoroid impact into a th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::3fe157bdb6279e2e0c11297d02500a3d
https://digitalcommons.usu.edu/physics_facpres/118
https://digitalcommons.usu.edu/physics_facpres/118