Výsledky vyhledávání - "C. A. Ramsbottom"

R-matrix atomic data for application in astrophysics and fusion

Autor: C. A. Ramsbottom, C. P. Ballance, M. McCann

Publikováno v: Ramsbottom, C A, Ballance, C P & McCann, M 2023, ' R-matrix atomic data for application in astrophysics and fusion ', The European Physical Journal D-Atomic, Molecular, Optical and Plasma Physics, vol. 77, no. 5, 71 . https://doi.org/10.1140/epjd/s10053-023-00640-6

Abstract A selection of electron-impact excitation R-matrix calculations completed by the collision group at Queens University Belfast are discussed. The atomic data calculated are the foundation of applications in a variety of fields, a sample of wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77d670e997fb361eedf4c325aa58e6c9
https://pure.qub.ac.uk/en/publications/8735b872-0a84-4096-b170-fbcc8424aa9b

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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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Electron-impact excitation of Fe II

Autor: C. A. Ramsbottom, C. E. Hudson, P. H. Norrington, M. P. Scott

Publikováno v: Astronomy & Astrophysics. 475:765-769

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a7eaf5edf1de24d768e3ae180083e2f
https://doi.org/10.1051/0004-6361:20078640

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Effective collision strengths for fine-structure forbidden transitions among the 2s22p3 levels of Ne IV

Autor: C. A. Ramsbottom, K. L. Bell, F. P. Keenan

Publikováno v: Monthly Notices of the Royal Astronomical Society. 293:233-238

Effective collision strengths for electron-impact excitation of the N-like ion Ne iv are calculated in the close-coupling approximation using the multichannel R-matrix method. Specific attention is given to the 10 astrophysically important fine-struc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::880154572cc947fc4c1ec340e2e6fed4
https://doi.org/10.1046/j.1365-8711.1998.01054.x

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Electron impact excitation of Fe-peak ions for astrophysical applications

Autor: C M Cassidy, C E Hudson, C A Ramsbottom, M P Scott, P G Burke

Publikováno v: Journal of Physics: Conference Series. 194:062013

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c68f48cdf002716bcac262a56f38cab8
https://doi.org/10.1088/1742-6596/194/6/062013

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S II emission lines in Planetary Nebulae

Autor: F.C. McKenna, F. P. Keenan, L. H. Aller, S. Hyung, K. L. Bell, C. A. Ramsbottom

Publikováno v: Symposium - International Astronomical Union. 180:258-258

Emission lines arising from transitions in S II have been detected in a wide variety of astronomical sources, including planetary nebulae (Hyung, Keyes & Aller 1995). These transitions are used to derive information on emitting plasmas parameters (Te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2309e3ce8935e56ef44319462b86d753
https://doi.org/10.1017/s0074180900130761

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