Intensity ratio in EUV spectra of highly charged Fe ions: Experimental evaluation of astrophysical plasma model

29th International Conference on Photonic, Electronic, and Atomic Collisions

Shimizu, Erina^1 ; Ali, Safdar^1 ; Sakaue, Hiroyuki A.^2 ; Kato, Daiji^2,3 ; Murakami, Izumi^2,3 ; Hara, Hirohisa^4 ; Watanabe, Tetsuya^4 ; Nakamura, Nobuyuki^4

Institute for Laser Science, University of Electro-Communications, Tokyo, 182-8585, Japan^1

National Institute for Fusion Science, Gifu

509-5292, Japan^2

Graduate University of Advanced Studies (SOKENDAI), Gifu

509-5292, Japan^3

National Astronomical Observatory of Japan, Tokyo

181-8588, Japan^4

关键词: Astrophysical plasma;    Effective electron densities;    Electron beam ion traps;    Experimental evaluation;    Extreme Ultraviolet;    Intensity ratio;    Plasma model;    Solar atmosphere;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052061/pdf
DOI  :  10.1088/1742-6596/635/5/052061

来源: IOP

【 摘 要 】

We present spectra of highly charged Fe ions in the extreme ultraviolet region observed with a compact electron beam ion trap. The experimental intensity ratios obtained as a function of the effective electron density is used for evaluating plasma models used in the electron density diagnostics of the solar atmosphere.