Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H

Satoshi Sugita, Akihiro Furuzawa, Kazunori Ishibashi, Keisuke Tamura, Takashi Okajima, Yoshitomo Maeda, Takuro Sato, Kou Ichihara, Kazuki Tomikawa, Ryo Iizuka, Takashi Awaya, Kohta Okada

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

X-ray reflection mirror of the Soft X-ray Telescope onboard ASTRO-H was coated by gold thin layer. Gold have M-shell X-ray absorption edge around 2 keV which is included in the energy band covered with the focal plane detector such as Soft X-ray Imager and Soft X-ray Spectrometer. It is important to make response function taken int account the Au M-dege structure especially for the Soft X-ray Spectrometer because It has unprecedented high energy resolution of 5 eV from 0.3 to 12 keV. We performed the detailed measurements of of reflectivity of the mirror using reflectometer in the synchrotron radiation facility KEK PF BL-11B from Nov. 29, 2011 to Dec. 5. X-ray beam of BL-11B was monochromatized to E/deltaE of 5000 by Double crystal monochromator using Si(111). We obtained the reflectivity at the grazing incident angles of 1.0, 1.2, and 1.4 degrees. While the energy pitch was set to be 2 eV in the 2.1-4.1 keV band, the reflectivity in the 2.2-2.35 keV band was also measured in detail with the energy pitch of 0.25 eV. We report the results and optical parameters of the SXT mirror such as reflectivity, and roughness calculated from the measurements.

元の言語English
ホスト出版物のタイトルSpace Telescopes and Instrumentation 2012
ホスト出版物のサブタイトルUltraviolet to Gamma Ray
DOI
出版物ステータスPublished - 2012
外部発表Yes
イベントSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam, Netherlands
継続期間: 01-07-201206-07-2012

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
8443
ISSN(印刷物)0277-786X

Other

OtherSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Netherlands
Amsterdam
期間01-07-1206-07-12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • これを引用

    Sugita, S., Furuzawa, A., Ishibashi, K., Tamura, K., Okajima, T., Maeda, Y., Sato, T., Ichihara, K., Tomikawa, K., Iizuka, R., Awaya, T., & Okada, K. (2012). Measurement of re ectivity of X-ray mirror for soft x-ray telescope onboard ASTRO-H. : Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray [844358] (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 8443). https://doi.org/10.1117/12.926711