Zobrazeno 1 - 10 of 105 pro vyhledávání: '"Maxim, Umansky"'
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Akademický článek
Dependence of the damage in optical metal/dielectric coatings on the energy of ions in irradiation experiments for space qualification
Autor: Maria G. Pelizzo, Alain J. Corso, Giovanni Santi, René Hübner, Denis Garoli, Dominic Doyle, Philip Lubin, Alexander N. Cohen, Jacob Erlikhman, Giulio Favaro, Marco Bazzan, Jon Drobny, Davide Curreli, Maxim Umansky
Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract Terrestrial accelerator facilities can generate ion beams which enable the testing of the resistance of materials and thin film coatings to be used in the space environment. In this work, a $$\hbox {TiO}_2$$ TiO 2 /Al bi-layer coating has be
Externí odkaz: https://doaj.org/article/735a2e62399c4bb1a6c908273c9b7a3a
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2
Ion temperature anisotropy model with cross‐field drifts in the scrape‐off layer
Autor: Menglong Zhao, Tom Rognlien, Aaro Jarvinen, Ilon Joseph, Maxim Umansky
Publikováno v: Zhao, M, Rognlien, T, Jarvinen, A, Joseph, I & Umansky, M 2022, ' Ion temperature anisotropy model with cross-field drifts in the scrape-off layer ', Contributions to Plasma Physics, vol. 62, no. 5-6, e202100164 . https://doi.org/10.1002/ctpp.202100164
An ion temperature anisotropy model including cross-field drifts has been implemented in the 2D transport code UEDGE. Two ion temperature equations are solved in the model to give separate ion temperatures perpendicular and parallel to the magnetic f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59c079e8dde7b594888fdcee55cee9be
https://doi.org/10.1002/ctpp.202100164
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3
Damage to Relativistic Interstellar Spacecraft by ISM Impact Gas Accumulation
Autor: Alexander Cohen, Maria G. Pelizzo, Jon Drobny, Maxim Umansky, Philip Lubin, Davide Curreli
Publikováno v: ASTROPHYSICAL JOURNAL, vol 908, iss 2
The Astrophysical Journal, vol 908, iss 2
The Astrophysical journal 908 (2021). doi:10.3847/1538-4357/abd4ec
info:cnr-pdr/source/autori:Drobny, Jon; Cohen, Alexander N.; Curreli, Davide; Lubin, Philip; Pelizzo, Maria G.; Umansky, Maxim/titolo:Damage to Relativistic Interstellar Spacecraft by ISM Impact Gas Accumulation/doi:10.3847%2F1538-4357%2Fabd4ec/rivista:The Astrophysical journal/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:908
As part of the NASA Starlight collaboration, we look at the implications of impacts with the interstellar medium (ISM) on a directed energy-driven relativistic spacecraft. The spacecraft experiences a stream of MeV/nucleon impacts along the forward e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::051f7546400a74633f3317d986b21c61
https://escholarship.org/uc/item/2w0353kt
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4
Divertor heat flux challenge and mitigation in SPARC
Autor: Martin Greenwald, Dan Brunner, Matthew Reinke, J. H. Irby, Alexander Creely, Adam Kuang, S. B. Ballinger, John Canik, D.G. Whyte, Bruce Lipschultz, T.K. Gray, Brian LaBombard, J. W. Hughes, Maxim Umansky, J.L. Terry, Jeremy Lore, S.J. Wukitch
Publikováno v: Cambridge University Press
Owing to its high magnetic field, high power, and compact size, the SPARC experiment will operate with divertor conditions at or above those expected in reactor-class tokamaks. Power exhaust at this scale remains one of the key challenges for practic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf3ed6b7a9eaaffc2a77426522b1345f
https://eprints.whiterose.ac.uk/166979/1/divertor_heat_flux_challenge_and_mitigation_in_sparc.pdf
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9
Assessment of X-point target divertor configuration for power handling and detachment front control
Autor: Dan Brunner, Brian LaBombard, Maxim Umansky, M.E. Rensink, T.D. Rognlien, J.L. Terry, Dennis G. Whyte
Publikováno v: Nuclear Materials and Energy, Vol 12, Iss, Pp 918-923 (2017)
Elsevier
A study of long-legged tokamak divertor configurations is performed with the edge transport code UEDGE (Rognlien et al., J. Nucl. Mater. 196, 347, 1992). The model parameters are based on the ADX tokamak concept design (LaBombard et al., Nucl. Fusion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e55e17968702b968c7be553fc8c68dd4
http://www.sciencedirect.com/science/article/pii/S2352179116301259
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10
Comparison of 2D simulations of detached divertor plasmas with divertor Thomson measurements in the DIII-D tokamak
Autor: W.H. Meyer, Adam McLean, Auna Moser, A.E. Jaervinen, Maxim Umansky, Max E. Fenstermacher, Ilon Joseph, G.D. Porter, Thomas Rognlien, M. Groth, Charles Lasnier
Publikováno v: Rognlien, T D, McLean, A G, Fenstermacher, M E, Groth, M, Järvinen, A E, Joseph, I, Lasnier, C J, Meyer, W, Moser, A, Porter, G D & Umansky, M V 2017, ' Comparison of 2D simulations of detached divertor plasmas with divertor Thomson measurements in the DIII-D tokamak ', Nuclear Materials and Energy, vol. 12, pp. 44-50 . https://doi.org/10.1016/j.nme.2016.12.002
Nuclear Materials and Energy, Vol 12, Iss, Pp 44-50 (2017)
A modeling study is reported using new 2D data from DIII-D tokamak divertor plasmas and improved 2D transport model that includes large cross-field drifts for the numerically difficult low anomalous transport regime associated with the H-mode. The da
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3be243674d6d24612d414479e8aedd3f
https://doi.org/10.1016/j.nme.2016.12.002
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