Radial profiles and emissivity ratio analysis of Ne-like FeXVII n = 3−2 transitions in Large Helical Device
Radial profiles and emissivity ratio analysis of Ne-like FeXVII n = 3−2 transitions in Large Helical Device
复制标题
大型螺旋装置中类氖 FeXVII n = 3−2 跃迁的径向剖面和发射率比分析
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Goto
中科院分区：
文献类型：
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作者：
X. L. Huang;E. Wang;C. Dong;S. Morita;T. Oishi;I. Murakami;M. Goto
在大螺旋装置（LHD）中观察到了在15 − 17 nm波长范围内发射的FeXVII 3s-2 p和3d-2 p跃迁的径向分布。通过阿贝尔反演将弦积分径向剖面转换为径向发射率剖面。从径向发射率分布计算的FeXVII n = 3−2跃迁的发射率比与基于为Fe离子开发的碰撞辐射（CR）模型的计算进行了比较。结果合理地证实了电子温度和密度对发射率比的影响。但3C（2 p53 d1 P1 → 2 p6）相变的发射率明显低于CR模型的预测值。这种差异与日冕和其他实验室等离子体的测量结果一致。
The radial profiles of the FeXVII 3s-2p and 3d-2p transitions emitted in the wavelength range of 15 − 17 Å have been observed in the Large Helical Device (LHD). The chord-integrated radial profiles are converted into radial emissivity profiles by means of Abel inversion. The emissivity ratios among FeXVII n = 3−2 transitions calculated from the radial emissivity profiles are compared with calculations based on a collisional-radiative (CR) model developed for Fe ions. The result reasonably confirms the effect of electron temperature and density on the emissivity ratio. However, the emissivity of the 3C (2p53d1P1 → 2p6) transition is obviously lower than the prediction from the CR model. This discrepancy is consistent with measurements in the solar corona and other laboratory plasmas.
影响因子：
64.8
作者：
Bernitt, S.;Brown, G. V.;Lopez-Urrutia, J. R. Crespo
通讯作者：
Lopez-Urrutia, J. R. Crespo