Development of a balloonborne hard x-ray telescope using multilayer supermirror

Keisuke Tamura; Koujun Yamashita; Yuzuru Tawara; Yasushi Ogasaka; Kazutoshi Haga; Takashi Okajima; Satoshi Ichimaru; Seiji Takahashi; Hideo Kitou; Arifumi Gotou; Ken'ichi Nomoto; Hiroyuki Satake; Seima Kato; Hideyo Kunieda; Peter J. Serlemitsos; Jack Tueller

doi:10.1117/12.407550

28 November 2000 Development of a balloonborne hard x-ray telescope using multilayer supermirror

Keisuke Tamura, Koujun Yamashita, Yuzuru Tawara, Yasushi Ogasaka, Kazutoshi Haga, Takashi Okajima, Satoshi Ichimaru, Seiji Takahashi, Hideo Kitou, Arifumi Gotou, Ken'ichi Nomoto, Hiroyuki Satake, Seima Kato, Hideyo Kunieda, Peter J. Serlemitsos, Jack Tueller

Author Affiliations +

Proceedings Volume 4138, X-Ray Optics, Instruments, and Missions IV; (2000) https://doi.org/10.1117/12.407550
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We have been developing high throughput X-ray telescope for hard X-ray region (20 - 40 keV) using Pt/C multilayer supermirrors for balloon borne experiment launched in 2001 June. The Walter type I telescope consists of about 2,000 supermirrors coated on very thin (150 micrometer) aluminum foils. We started mass production of the supermirror reflectors. Two different method is used for fabrication process. One is multilayer deposition on the platinum replica foil, and the other is direct replication of supermirror. The performance of the supermirrors are measured in X-ray beam line in Nagoya University and synchrotron radiation facility SPring-8. We obtained 30% reflectivity at 30 keV, corresponding to 0.35 nm interfacial roughness by Debye-Waller factor. The performance of multilayer supermirrors indicate that we can achieve about 100 cm² effective area for a telescope.

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Keisuke Tamura, Koujun Yamashita, Yuzuru Tawara, Yasushi Ogasaka, Kazutoshi Haga, Takashi Okajima, Satoshi Ichimaru, Seiji Takahashi, Hideo Kitou, Arifumi Gotou, Ken'ichi Nomoto, Hiroyuki Satake, Seima Kato, Hideyo Kunieda, Peter J. Serlemitsos, and Jack Tueller "Development of a balloonborne hard x-ray telescope using multilayer supermirror", Proc. SPIE 4138, X-Ray Optics, Instruments, and Missions IV, (28 November 2000); https://doi.org/10.1117/12.407550

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