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26 September 2013 Development of Four-Stage X-ray Telescope (FXT) for DIOS mission
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Abstract
A Four-stage X-ray Telescope (FXT) has been developed as the best-fit optics for the Diffuse Intergalactic Oxygen Surveyor (DIOS) mission, a small satellite mission for mapping observations of the warm-hot intergalactic medium. The FXT mirrors are based on a conical approximation of the Wolter-I design, fabrication technique used in the Suzaku satellite. We developed processes for fabricating a large-diameter (≥ 50 cm) foil mirror and made a new full size quadrant housing 60 cm in diameter with four-stage integrated alignment plates. We made optical measurement using one set of four-stage mirrors over than diameter of more than 50 cm.
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Ikuya Sakurai, Satoshi Sugita, Yuzuru Tawara, Shunya Takizawa, Yasunori Babazaki, and Ren Nakamichi "Development of Four-Stage X-ray Telescope (FXT) for DIOS mission", Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88610P (26 September 2013); https://doi.org/10.1117/12.2023804
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