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20 September 2007 Characterization of Pt/C multilayer at 200 keV soft gamma-ray
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Imaging observations by means of optics is crucially important, not only for its capability of spatially resolving astronomical objects, but also for its sensitivity superior to non-imaging experiments by orders of magnitude. In order to study feasibilities of reflective optics in soft gamma-ray region, we measured Pt/C multilayer and multilayer-supermirror at 200 keV. Angular dispersion is measured at wide range of incidence angle. The results showed that measured reflectivities agree well with model calculation using tabulated optical constants and roughness measured at 8.4, 30 and 60 keV. Possible configuration of soft gamma-ray telescope is discussed.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yasushi Ogasaka, Tomonaga Iwahara, Takuya Miyazawa, Yoshihiro Fukaya, Naoki Sasaki, Keisuke Tamura, Yasufumi Kanou, Hideyo Kunieda, and Koujun Yamashita "Characterization of Pt/C multilayer at 200 keV soft gamma-ray", Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 66880S (20 September 2007);


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