Supermirror design for Hard X-Ray Telescopes on-board Hitomi (ASTRO-H)
Abstrak
Abstract. We designed depth-graded multilayers, so-called supermirrors, with platinum/carbon (Pt/C) layer pairs for the Hard X-Ray Telescope (HXT) that was on-board the sixth Japanese X-Ray Astronomy Satellite Hitomi (ASTRO-H). The HXT has multinested thin foil optics, and the grazing angles of the x-ray mirrors are 0.07 to 0.27 deg. Supermirrors for HXTs are designed to provide a broad energy response (up to 80 keV) for astronomical requests. Under practical boundary conditions, we establish a block method applying empirical rules to maximize the integrated reflectivity. We fabricated Pt/C supermirrors using a DC magnetron sputtering system. The reflectivity of the mirrors was measured in a synchrotron radiation facility, SPring-8. We describe the design method for the supermirrors and our results.
Topik & Kata Kunci
Penulis (17)
K. Tamura
H. Kunieda
Y. Miyata
T. Okajima
T. Miyazawa
A. Furuzawa
H. Awaki
Y. Haba
K. Ishibashi
M. Ishida
Y. Maeda
H. Mori
Y. Tawara
S. Yamauchi
K. Uesugi
Yoshio Suzuki
Hxt Team
Akses Cepat
- Tahun Terbit
- 2018
- Bahasa
- en
- Total Sitasi
- 20×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1117/1.JATIS.4.1.011209
- Akses
- Open Access ✓