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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >The spectrum of seven times ionized tungsten (W VIII) relevant to tokamak divertor plasmas
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The spectrum of seven times ionized tungsten (W VIII) relevant to tokamak divertor plasmas

机译:与托卡马克偏滤器等离子体有关的七倍电离钨(W VIII)的光谱

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摘要

Tungsten spectra excited in the vacuum sparks of different setups and electric circuits were recorded on two high-resolution vacuum spectrographs. For the region 190-500 ?, a 10 m normal incidence spectrograph with a 3600 lines/mm grating was used in the Meudon Observatory. In the region below 350 ?, a set of spectra was produced using a 3 m grazing incidence spectrograph with a 3600 lines/mm grating in the Institute of Spectroscopy in Troitsk. A total of 187 lines in the region 160-271 ? were identified as transitions to the low-lying odd configurations 4f~(13)5s ~25p~6 and 4f~(14)5s~25p~5 from the interacting excited even 4f~(12)5s~25p~65d + 4f~(13)5s~25p~5(5d + 6s) + 4f~(14)5s ~25p~4(5d + 6s) + 4f~(14)5s5p~6 configurations. It was found that 4f~(13)5s~25p~(6 2)F_(7/2) is the ground level of W VIII. The fine structure splitting and relative positions of the odd terms were established, and 98 levels of the excited even configurations were found.
机译:在两个高分辨率的真空光谱仪上记录了在不同装置和电路的真空火花中激发的钨光谱。对于190-500Ω区域,在Meudon天文台中使用了具有3600线/毫米光栅的10 m垂直入射光谱仪。在低于350?的区域中,使用位于Troitsk光谱研究所的3 m掠入射光谱仪和3600线/ mm光栅产生一组光谱。 160-271个区域中共有187条线路?被认为是从相互作用的偶数激发4f〜(12)5s〜25p〜65d + 4f〜向低洼奇数构型4f〜(13)5s〜25p〜6和4f〜(14)5s〜25p〜5的转变。 (13)5s〜25p〜5(5d + 6s)+ 4f〜(14)5s〜25p〜4(5d + 6s)+ 4f〜(14)5s5p〜6配置。发现4f〜(13)5s〜25p〜(6 2)F_(7/2)是W VIII的地平面。建立了奇数项的精细结构分裂和相对位置,发现了98个水平的激发偶数构型。

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