Measurement of L-Shell Emission from Iron-Group Elements for High-Resolution X-Ray Spectroscopy in Future Astronomy

被引：0
作者：
Ohshiro Y. [1 ,2 ]
Kawate T. [3 ,4 ]
Yamaguchi H. [1 ,2 ]
Murakami I. [3 ,4 ]
机构：
[1] Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo
[2] Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Chuo-ku, Kanagawa, Sagamihara
[3] National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Gifu, Toki
[4] Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI, 322-6 Oroshi-cho, Gifu, Toki
来源：
Plasma and Fusion Research | 2023年 / 18卷
基金：
日本学术振兴会;
关键词：
EUV spectroscopy; intensity ratio; line identification; manganese; nickel;
D O I：
10.1585/PFR.18.2401041
中图分类号：
学科分类号：
摘要：
Measuring abundance of iron-group elements (IGEs; Cr, Mn, Fe, and Ni) is essential for understanding astrophysical phenomena such as supernovae. The L-shell emissions from IGEs will soon be resolved by nextgeneration X-ray satellites, enabling more accurate measurements of abundance. However, theoretical calculations for these L-shell transitions have not been sufficiently validated using experimental work. Herein, large helical device (LHD) experiments that measured L-shell emission from Ni and Mn are reported. The temporal evolution of LHD plasma is characterized by three phases, each of which resolves different L-shell emissions. We modeled EUV-Short spectra considering LHD plasma structure with AtomDB, an atomic database widely used in the X-ray astronomy community. We discovered that the observed intensity ratios of the 3C (2p53d1 1P1 → 2p6 1S 0) to 3D (2p53d1 3D1 → 2p6 1S 0) transition of Ne-like ions are 0.4 - 0.6 times lower than the theoretically predicted ratios. © 2023 The Japan Society of Plasma Science and Nuclear Fusion Research
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共 25 条
  • [1] Ohshiro Y., Yamaguchi H., Leung S.-C., Nomoto K., Sato T., Tanaka T., Okon H., Fisher R., Petre R., Williams B.J., Discovery of a Highly Neutronized Ejecta Clump in the Type Ia Supernova Remnant 3C 397, Astrophys. J. Lett, 913, 2, (2021)
  • [2] Sato T., Maeda K., Nagataki S., Yoshida T., Grefen-stette B., Williams B.J., Umeda H., Ono M., Hughes J.P., High-entropy ejecta plumes in Cassiopeia A from neutrino-driven convection, Nature, 592, 7855, (2021)
  • [3] Yamaguchi H., Badenes C., Petre R., Nakano T., Castro D., Enoto T., Hiraga J.S., Hughes J.P., Maeda Y., Nobukawa M., Safi-Harb S., Slane P.O., Smith R.K., Uchida H., Discriminating the Progenitor Type of Supernova Remnants with Iron K-Shell Emission, Astrophys. J, 785, 2, (2014)
  • [4] XRISM Science Team, Science with the X-ray Imaging and Spectroscopy Mission (XRISM), (2020)
  • [5] Foster A.R., Ji L., Smith R.K., Brickhouse N.S., Updated Atomic Data and Calculations for X-Ray Spectroscopy, Astrophys. J, 756, 2, (2012)
  • [6] Iiyoshi A., Komori A., Ejiri A., Emoto M., Funaba H., Goto M., Ida K., Idei H., Inagaki S., Kado S., Kaneko O., Kawahata K., Kobuchi T., Kubo S., Kumazawa R., Masuzaki S., Minami T., Miyazawa J., Morisaki T., Morita S., Murakami S., Muto S., Mutoh T., Nagayama Y., Nakamura Y., Nakanishi H., Narihara K., Nishimura K., Noda N., Ohdachi S., Ohyabu N., Oka Y., Osakabe M., Ozaki T., Peterson B. J., Sagara A., Sakakibara S., Sakamoto R., Sasao H., Sasao M., Sato K., Sato M., Seki T., Shimozuma T., Sh
  • [7] Chowdhuri M.B., Morita S., Goto M., Characteristics of an absolutely calibrated flat-field extreme ultraviolet spectrometer in the 10-130 A range for fusion plasma diagnostics, Applied Optics, 47, 2, (2008)
  • [8] Oishi T., Ashikawa N., Nespoli F., Masuzaki S., Shoji M., Gilson E.P., Lunsford R., Morita S., Goto M., Kawamoto Y., Suzuki C., Sun Z., Nagy A., Gates D.A., Morisaki T., Line identification of boron and nitrogen emissions in extreme and vacuum-ultraviolet wavelength ranges in the impurity powder dropping experiments of the Large Helical Device and its application to spectroscopic diagnostics, Plasma Sci. Technol, 23, 8, (2021)
  • [9] Huang X.L., Wang E.H., Dong C.F., Morita S., Oishi T., Murakami I., Goto M., Radial profiles and emissivity ratio analysis of Ne-like FeXVII n = 3-2 transitions in Large Helical Device, J. Korean Physical Society, 65, 8, (2014)
  • [10] Nozato H., Morita S., Goto M., Ejiri A., Takase Y., Acceleration characteristics of spherical and nonspherical pel lets by the LHD impurity pellet injector, Rev. Sci. Instrum, 74, 3, (2003)
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