Zobrazeno 1 - 10 of 56 pro vyhledávání: '"S D Loch"'
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Akademický článek
Recent DIII-D progress toward validating models of tungsten erosion, re-deposition, and migration for application to next-step fusion devices
Autor: T Abrams, J G Guterl, S Abe, D C Donovan, I Bykov, C A Johnson, J H Nichols, J D Elder, D A Ennis, S D Loch, D L Rudakov, G Sinclair, C H Skinner, P C Stangeby, D M Thomas, E A Unterberg, W R Wampler
Publikováno v: Materials Research Express, Vol 10, Iss 12, p 126503 (2023)
Fundamental mechanisms governing the erosion and prompt re-deposition of tungsten impurities in tokamak divertors are identified and analyzed to inform the lifetime of tungsten plasma-facing components in ITER and other future devices. Various experi
Externí odkaz: https://doaj.org/article/0a7001fe3a7a45338e386899869cccc0
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2
A Dirac R-matrix calculation for the electron-impact excitation of W+
Autor: N L Dunleavy, C P Ballance, C A Ramsbottom, C A Johnson, S D Loch, D A Ennis
Publikováno v: Dunleavy, N L, Ballance, C P, Ramsbottom, C A, Johnson, C A & Ennis, D A 2022, ' A Dirac R-matrix calculation for the electron-impact excitation of W+ ', Journal of Physics B: Atomic Molecular and Optical Physics, vol. 55, 175002 . https://doi.org/10.1088/1361-6455/ac8089
Aims: tungsten has been chosen for use as a plasma facing component in the divertor for the ITER experiment, and is currently being used on existing tokamaks such as JET. W+ plays an integral role in assessing the impurity influx from plasma facing c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8009666379399d8e4b49da658cc5e54
https://pure.qub.ac.uk/en/publications/d1f3f7f0-64a6-4354-bd27-f60859bdd618
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3
Electron-impact ionization of the tantalum atom
Autor: M S Pindzola, S D Loch, J P Colgan
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 55:235203
Electron-impact ionization cross sections for the ground configuration of the tantalum (Ta) atom are calculated using a combination of non-perturbative time-dependent close-coupling and perturbative distorted-wave methods. Direct ionization of the 6s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4e9f1fe63d0be9ace19f8e136b4ee30
https://doi.org/10.1088/1361-6455/ac993c
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6
The effects of radiative cascades on the x-ray diagnostic lines of Fe16+
Autor: S D Loch, M S Pindzola, C P Ballance, D C Griffin
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 39:85-104
We demonstrate, in an elementary manner, that given a partition of the single particle Hilbert space into orthogonal subspaces, a Fermi sea may be factored into pairs of entangled modes, similar to a BCS state. We derive expressions for the entropy a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::872015c31d0e193075f8c402b7a09295
https://doi.org/10.1088/0953-4075/39/1/009
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7
Electron-impact single and double ionization of the Mn2+, Mn3+and Mn4+atomic ions
Autor: S D Loch, M S Pindzola
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 50:085203
Electron-impact single and double ionization cross sections for Mn2+, Mn3+ and Mn4+ are calculated using a semi-relativistic configuration-average distorted-wave method. The ionization cross sections include contributions from single direct ionizatio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad54b1d8053676e1a3975c3de0f74cc0
https://doi.org/10.1088/1361-6455/aa64c2
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8
Advances in Supercomputing for the Modeling of Atomic Processes in Plasmas
Autor: J. A. Ludlow, C. P. Ballance, S. D. Loch, T. G. Lee, M. S. Pindzola, D. C. Griffin, B. M. McLaughlin, J. Colgan, Kevin B. Fournier
Publikováno v: AIP Conference Proceedings.
An overview will be given of recent atomic and molecular collision methods developed to take advantage of modern massively parallel computers. The focus will be on direct solutions of the time‐dependent Schrodinger equation for simple systems using
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c30484e4484254d18acbc19f5f8c5c4
https://doi.org/10.1063/1.3241187
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9
Ionization Balance and Data Surveys
Autor: S. D. Loch, C. P. Ballance, J. M. Munoz Burgos, M. Fogle, J. A. Ludlow, M. S. Pindzola, D. C. Griffin, M. G. O’Mullane, Kevin B. Fournier
Publikováno v: AIP Conference Proceedings.
A review is given of the most commonly used databases for electron‐impact ionization and recombination data. A brief description is given of the theoretical methods used to calculate ionization and recombination cross sections, and the role of meta
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a32275058064e5df693ead933e02ab7
https://doi.org/10.1063/1.3241186
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10
Atomic Data For Core And Edge Modeling
Autor: M. G. O’Mullane, A. R. Foster, A. D. Whiteford, H. P. Summers, S. D. Loch, L. Lauro-Taroni, Kevin B. Fournier
Publikováno v: AIP Conference Proceedings.
Future magnetic fusion energy devices, will have both very high Z (tungsten) and low Z (beryllium) plasma facing components, are setting the agenda for current atomic data needs. Data for the light species are in good shape but the heavy species pres
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ad900c83d3256086348d55c8b446385
https://doi.org/10.1063/1.3241209
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