中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Population modelling of the He II energy levels in tokamak plasmas: I. Collisional excitation model

文献类型:期刊论文

作者Lawson, K. D.5,6,15; Aggarwal, K. M.5,7,34; Coffey, I. H.5,6,7; Keenan, F. P.5,7; O'Mullane, M. G.5,8; Litaudon, X.40; Abduallev, S.44; Abhangi, M.51; Abreu, P.58; Afzal, M.15
刊名JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
出版日期2019-02-28
卷号52期号:4页码:21
ISSN号0953-4075
关键词He II population modelling tokamak plasmas spectral line intensity ratios
DOI10.1088/1361-6455/aaf703
英文摘要

Helium is widely used as a fuel or minority gas in laboratory fusion experiments, and will be present as ash in DT thermonuclear plasmas. It is therefore essential to have a good understanding of its atomic physics. To this end He II population modelling has been undertaken for the spectroscopic levels arising from shells with principal quantum number n = 1-5. This paper focuses on a collisional excitation model; ionisation and recombination will be considered in a subsequent article. Heavy particle collisional excitation rate coefficients have been generated to supplement the currently-available atomic data for He II, and are presented for proton, deuteron, triton and alpha-particle projectiles. The widely-used criterion for levels within an n shell being populated in proportion to their statistical weights is reassessed with the most recent atomic data, and found not to apply to the He II levels at tokamak densities (10(18)-10(21) m(-3)). Consequences of this and other likely sources of errors are quantified, as is the effect of differing electron and ion temperatures. Line intensity ratios, including the so-called 'branching ratios' and the fine-structure beta(1), beta(2), beta(3), and gamma ratios, are discussed, the latter with regard to their possible use as diagnostics.

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资助项目Euratom research and training programme[633053] ; RCUK[EP/P012450/1]
WOS研究方向Optics ; Physics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000456847500001
资助机构Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK ; RCUK
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/41596]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Lawson, K. D.
作者单位1.Univ Oxford, Dept Phys, Oxford OX1 2JD, England
2.KTH, Dept Phys, SCI, SE-10691 Stockholm, Sweden
3.Univ Milano Bicocca, Piazza Sci 3, F-20126 Milan, Italy
4.Univ Basel, Dept Phys, Basel, Switzerland
5.EUROfus Consortium, JET, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
6.UKAEA, CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
7.Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
8.Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland
9.Aalto Univ, POB 14100, FIN-00076 Aalto, Finland
10.Aix Marseille Univ, CNRS, Cent Marseille, M2P2 UMR 7340, F-13451 Marseille, France
推荐引用方式
GB/T 7714
Lawson, K. D.,Aggarwal, K. M.,Coffey, I. H.,et al. Population modelling of the He II energy levels in tokamak plasmas: I. Collisional excitation model[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2019,52(4):21.
APA Lawson, K. D..,Aggarwal, K. M..,Coffey, I. H..,Keenan, F. P..,O'Mullane, M. G..,...&Sharapov, S. E..(2019).Population modelling of the He II energy levels in tokamak plasmas: I. Collisional excitation model.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,52(4),21.
MLA Lawson, K. D.,et al."Population modelling of the He II energy levels in tokamak plasmas: I. Collisional excitation model".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 52.4(2019):21.

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来源:合肥物质科学研究院

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