A strong visible line in the spectrum of W11+. (1st September 2016)

• Record Type: Journal Article
• Authors: Li, M; Qiu, M; Xiao, J; Yao, K; Brage, T; Hutton, R; Zou, Y
• Is Part Of: Physica scripta. Volume 91:Number 10(2016:Oct.)
• Publication Date: 2016-09-01
• Subjects: visible spectroscopy -- forbidden transitions -- highly charged ions -- fusion plasma dagnostics; Physics -- Periodicals; 530.05
• DOI: 10.1088/0031-8949/91/10/105401
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: We have investigated the visible spectrum of W 11+ and found a very strong line at the wave length of 527.61 nm from the 4f 13 5s 2 5p 2 ( 2 F7/2 - 2 F5/2 ) 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.