Development of x-ray mirrors for x-ray telescopes

Keisuke Tamura; Chiaki Sakai; Nubuaki Yamada; Yasushi Ogasaka; Ryo Shibata

doi:10.1117/12.616595

1 September 2005 Development of x-ray mirrors for x-ray telescopes

Keisuke Tamura, Chiaki Sakai, Nubuaki Yamada, Yasushi Ogasaka, Ryo Shibata

Proceedings Volume 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II; 590005 (2005) https://doi.org/10.1117/12.616595
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Keisuke Tamura, Chiaki Sakai, Nubuaki Yamada, Yasushi Ogasaka, and Ryo Shibata "Development of x-ray mirrors for x-ray telescopes", Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 590005 (1 September 2005); https://doi.org/10.1117/12.616595

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