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Proceedings Paper

Development of x-ray mirrors for x-ray telescopes
Author(s): Keisuke Tamura; Chiaki Sakai; Nubuaki Yamada; Yasushi Ogasaka; Ryo Shibata
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Paper Abstract

We have been developing X-ray mirrors for X-ray telescope using a ion-beam sputtering system. X-rays can be reflected by two processes, one is total reflection, and another is Bragg reflection. Total reflection is used for previous telescope below 10 keV. Its reflectivity determined by the optical constant. We suggests composite-layer mirror for soft X-ray optics, which has consists some different materials and optical constant has structure to the depth direction. The penetration depth of X-ray depends on the X-ray energy, so effective optical constant changes with X-ray energy. The depth graded multilayer, called "supermirror" was applied to the soft X-ray region. We designed nickelcarbon supermirror to obtain high reflectivity below 10 keV.

Paper Details

Date Published: 1 September 2005
PDF: 9 pages
Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 590005 (1 September 2005); doi: 10.1117/12.616595
Show Author Affiliations
Keisuke Tamura, Nagoya Univ. (Japan)
Chiaki Sakai, Nagoya Univ. (Japan)
Nubuaki Yamada, Nagoya Univ. (Japan)
Yasushi Ogasaka, Nagoya Univ. (Japan)
Ryo Shibata, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 5900:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy II
Oberto Citterio; Stephen L. O'Dell, Editor(s)

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