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Intensity ratio measurements for density sensitive lines of highly charged Fe ions

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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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Authors and Affiliations

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

    Safdar Ali, Erina Shimizu & Nobuyuki Nakamura

  2. National Institute for Fusion Science, Gifu, 509-5292, Japan

    Hiroyuki A. Sakaue, Daiji Kato & Izumi Murakami

  3. The Graduate University of Advanced Studies (SOKENDAI), Gifu, 509-5292, Japan

    Daiji Kato, Izumi Murakami, Hirohisa Hara & Tetsuya Watanabe

  4. Chubu University, Aichi, 487-8501, Japan

    Norimasa Yamamoto

  5. National Astronomical Observatory of Japan, Tokyo, 181-8588, Japan

    Hirohisa Hara & Tetsuya Watanabe

Authors
  1. Safdar Ali
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  2. Erina Shimizu
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  3. Hiroyuki A. Sakaue
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  4. Daiji Kato
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  5. Izumi Murakami
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  6. Norimasa Yamamoto
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  7. Hirohisa Hara
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  8. Tetsuya Watanabe
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  9. Nobuyuki Nakamura
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Corresponding author

Correspondence to Nobuyuki Nakamura.

Additional information

Proceedings of the 6th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 2014), Takamatsu, Japan, 1-5 December 2014

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Ali, S., Shimizu, E., Sakaue, H.A. et al. Intensity ratio measurements for density sensitive lines of highly charged Fe ions. Hyperfine Interact 235, 45–49 (2015). https://doi.org/10.1007/s10751-015-1195-z

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  • DOI: https://doi.org/10.1007/s10751-015-1195-z

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