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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Lunar Radiation Environment And Space Weathering From The Cosmic Ray Telescope For The Effects Of Radiation (Crater), Nathan A. Schwadron, T. Baker, B. Blake, A. W. Case, J. F. Cooper, M. Golightly, Andrew P. Jordan, Colin J. Joyce, J. Kasper, K. Kozarev, J. Mislinski, J. Mazur, Harlan E. Spence
Lunar Radiation Environment And Space Weathering From The Cosmic Ray Telescope For The Effects Of Radiation (Crater), Nathan A. Schwadron, T. Baker, B. Blake, A. W. Case, J. F. Cooper, M. Golightly, Andrew P. Jordan, Colin J. Joyce, J. Kasper, K. Kozarev, J. Mislinski, J. Mazur, Harlan E. Spence
Physics & Astronomy
[1] The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) measures linear energy transfer by Galactic Cosmic Rays (GCRs) and Solar Energetic Particles (SEPs) on the Lunar Reconnaissance Orbiter (LRO) Mission in a circular, polar lunar orbit. GCR fluxes remain at the highest levels ever observed during the space age. One of the largest SEP events observed by CRaTER during the LRO mission occurred on June 7, 2011. We compare model predictions by the Earth-Moon-Mars Radiation Environment Module (EMMREM) for both dose rates from GCRs and SEPs during this event with results from CRaTER. We find agreement between these …
The First Cosmic Ray Albedo Proton Map Of The Moon, Jody K. Wilson, Harlan E. Spence, Justin Kasper, Michael Golightly, J. B. Blake, J. E. Mazur, L. W. Townsend, A. W. Case, M. D. Looper, C. Zeitlin, Nathan A. Schwadron
The First Cosmic Ray Albedo Proton Map Of The Moon, Jody K. Wilson, Harlan E. Spence, Justin Kasper, Michael Golightly, J. B. Blake, J. E. Mazur, L. W. Townsend, A. W. Case, M. D. Looper, C. Zeitlin, Nathan A. Schwadron
Physics & Astronomy
[1] Neutrons emitted from the Moon are produced by the impact of galactic cosmic rays (GCRs) within the regolith. GCRs are high-energy particles capable of smashing atomic nuclei in the lunar regolith and producing a shower of energetic protons, neutrons and other subatomic particles. Secondary particles that are ejected out of the regolith become “albedo” particles. The neutron albedo has been used to study the hydrogen content of the lunar regolith, which motivates our study of albedo protons. In principle, the albedo protons should vary as a function of the input GCR source and possibly as a result of surface …
Focusing On Size And Energy Dependence Of Electron Microbursts From The Van Allen Radiation Belts, Harlan E. Spence, J. B. Blake, A. B. Crew, S. Driscoll, D. M. Klumpar, B. A. Larsen, Jason S. Legere, S. Longworth, E. Mosleh, T. P. O'Brien, Sonya S. Smith, L. Springer, W. Widholm
Focusing On Size And Energy Dependence Of Electron Microbursts From The Van Allen Radiation Belts, Harlan E. Spence, J. B. Blake, A. B. Crew, S. Driscoll, D. M. Klumpar, B. A. Larsen, Jason S. Legere, S. Longworth, E. Mosleh, T. P. O'Brien, Sonya S. Smith, L. Springer, W. Widholm
Physics & Astronomy
No abstract provided.
Characterizing Electrons In Primary And Secondary Magnetic Islands During Magnetic Reconnection, Jason Shuster
Characterizing Electrons In Primary And Secondary Magnetic Islands During Magnetic Reconnection, Jason Shuster
Honors Theses and Capstones
The physics underlying particle-in-cell simulations that are widely employed in studying plasma dynamics are reviewed. Results from a two-dimensional particle-in-cell simulation of fully kinetic, undriven, collisionless magnetic reconnection are studied to compare the electrons in a primary magnetic island formed from an ion current sheet and the electrons in a secondary island formed in an electron current layer. We find that the secondary island is born with a strong out-of-plane current density due to localized peaks in the electron density and out-of-plane electron velocity; the secondary island retains these features as it evolves, distinguishing it from the primary island. For …
The Extent Of The Cooper Pair Insulator Phase In Amorphous Pb0.9bi0.1 Nanohoneycomb Films, Shawna M. Hollen, J C. Joy, A H. Berg, G. E. Fernandes, J Shainline, J M. Xu, J M. Valles Jr.
The Extent Of The Cooper Pair Insulator Phase In Amorphous Pb0.9bi0.1 Nanohoneycomb Films, Shawna M. Hollen, J C. Joy, A H. Berg, G. E. Fernandes, J Shainline, J M. Xu, J M. Valles Jr.
Physics & Astronomy
No abstract provided.