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15 June 2006 Development and performance of the advanced hard x-ray telescope for the balloon experiment
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Imaging observation in the hard X-ray band of 10 - 100 keV is one of the important subjects in X-ray astronomy. Though SUMIT balloon-borne experiment, we have developed thin-foil-nested hard X-ray telescope employing depth-graded Pt/C multilayer (multilayer-supermirror). We have improved production process of the replica reflector and telescope optics compared with InFOCμS-2004 telescope. The new telescope was measured at synchrotron radiation facility, SPring-8. The image quality and throughtput were estimated to be 2.06 arcmin (half power diameter) and 85 % at 30 keV, respectively. These values were about 24 % and 30 % improvement compared to InFOCμS-2004, respectively. Limiting factors of its performance are also investigated. Based on such an investigation we are now continuously developing hard X-ray telescope for SUMIT 2006 flight.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takuya Miyazawa, Ryo Shibata, Yasushi Ogasaka, Yoshihiro Fukaya, Masataka Naitou, Tomonaga Iwahara, Kenta Shimoda, Keisuke Tamura, Akihiro Furuzawa, Hideyo Kunieda, Koujun Yamashita, Shin Yokoi, Takuma Yoshii, Naoya Watanabe, and Yoshiharu Namba "Development and performance of the advanced hard x-ray telescope for the balloon experiment", Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62663C (15 June 2006);

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