A strong visible line in the spectrum of W11+

M. Li; M. Qiu; J. Xiao; K. Yao; T. Brage; R. Hutton; Y. Zou

doi:10.1088/0031-8949/91/10/105401

A strong visible line in the spectrum of W¹¹⁺

M. Li, M. Qiu, J. Xiao, K. Yao, T. Brage, R. Hutton, Y. Zou

Mathematical Physics

Fudan University

Research output: Contribution to journal › Article › peer-review

Abstract

We have investigated the visible spectrum of W¹¹⁺ and found a very strong line at the wave length of 527.61 nm from the 4f¹³5s²5p² (²F_7/2-²F_5/2) transition. We show that this line is strong since the excitation energy of the upper level opens up the possibility to capture a large population. We discuss the possibility that this strong line could be the unknown line seen in charge exchange spectra recorded at the JET fusion facility.

Original language	English
Article number	105401
Journal	Physica Scripta
Volume	91
Issue number	10
DOIs	https://doi.org/10.1088/0031-8949/91/10/105401
Publication status	Published - 2016 Sept 1

Subject classification (UKÄ)

Fusion, Plasma and Space Physics

Free keywords

forbidden transitions
fusion plasma dagnostics
highly charged ions
visible spectroscopy

Access to Document

10.1088/0031-8949/91/10/105401

Cite this

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title = "A strong visible line in the spectrum of W11+",

abstract = "We have investigated the visible spectrum of W11+ and found a very strong line at the wave length of 527.61 nm from the 4f135s25p2 (2F7/2-2F5/2) transition. We show that this line is strong since the excitation energy of the upper level opens up the possibility to capture a large population. We discuss the possibility that this strong line could be the unknown line seen in charge exchange spectra recorded at the JET fusion facility.",

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AU - Li, M.

AU - Qiu, M.

AU - Xiao, J.

AU - Yao, K.

AU - Brage, T.

AU - Hutton, R.

AU - Zou, Y.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - We have investigated the visible spectrum of W11+ and found a very strong line at the wave length of 527.61 nm from the 4f135s25p2 (2F7/2-2F5/2) transition. We show that this line is strong since the excitation energy of the upper level opens up the possibility to capture a large population. We discuss the possibility that this strong line could be the unknown line seen in charge exchange spectra recorded at the JET fusion facility.

AB - We have investigated the visible spectrum of W11+ and found a very strong line at the wave length of 527.61 nm from the 4f135s25p2 (2F7/2-2F5/2) transition. We show that this line is strong since the excitation energy of the upper level opens up the possibility to capture a large population. We discuss the possibility that this strong line could be the unknown line seen in charge exchange spectra recorded at the JET fusion facility.

KW - forbidden transitions

KW - fusion plasma dagnostics

KW - highly charged ions

KW - visible spectroscopy

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