Intensity ratio measurements for density sensitive lines of highly charged Fe ions |
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Authors: | Safdar Ali Erina Shimizu Hiroyuki A. Sakaue Daiji Kato Izumi Murakami Norimasa Yamamoto Hirohisa Hara Tetsuya Watanabe Nobuyuki Nakamura |
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Affiliation: | 1. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400005, India
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Abstract: | Intensity ratio of density sensitive emission lines emitted from Fe ions in the extreme ultraviolet region is important for astrophysics applications. We report high-resolution intensity ratio measurements for Fe ions performed at Tokyo EBIT laboratory by employing a flat-field grazing incidence spectrometer. The experimental intensity ratios of Fe X and Fe XII are plotted as a function of electron density for different electron beam currents. The experimental results are compared with the predicted intensity ratios from the model calculations. |
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