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Design of soft x-ray varied-line-spacing (VLS) high-dispersion laminar-type grating coated with super-mirror-type (SMT) multilayer for flat-field spectrograph in a region of 2?4 keV
https://repo.qst.go.jp/records/2001035
https://repo.qst.go.jp/records/2001035a9e73e79-6777-4726-ad81-0152d804aeaa
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2024-03-04 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Design of soft x-ray varied-line-spacing (VLS) high-dispersion laminar-type grating coated with super-mirror-type (SMT) multilayer for flat-field spectrograph in a region of 2?4 keV | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ | journal article | |||||||||||||||
| 著者 |
Koike Masato
× Koike Masato
× Hatano Tadashi
× Alexander Pirozhkov
× Ueno Yoshio
× Terauchi Masami
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | A soft x-ray varied-line-spacing (VLS) laminar-type spherical grating with super-mirror-type (SMT) multilayer was designed for a soft x-ray high resolution flat-field spectrographs in a region of 2?4 keV. Effective groove density of the designed VLS grating is 3,200 lines/mm, and local groove density varies from 2,700 to 3,866 lines/mm. Geometrical imaging property was evaluated by numerical calculations. The resolving power estimated by means of ray tracing was up to ca. 103. For the evaluation of diffraction efficiency, the SMT multilayer structure designed for 3,200 lines/mm in our previous work, M. Koike et al., Rev. Sci. Instrum. 94, 045109 (2023), was employed, and the numerical calculation was performed considering the local groove density of VLS grooves, and local incidence angle being affected by curvature of spherical surface and geometrical relation between the source and incidence point on the grating. The results showed that the SMT coated grating exhibited about one order of magnitude higher diffraction efficiency compared with an Au-coated grating. | |||||||||||||||
| 書誌情報 |
Review of Scientific Instruments 発行日 2024-03 |
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| 出版者 | ||||||||||||||||
| 出版者 | American Insuttute of Physics | |||||||||||||||
| DOI | ||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | 10.1063/5.0173068 | |||||||||||||||
