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11 October 2004 Development of a four-stage x-ray telescope for the DIOS (Diffuse Intergalactic Oxygen Surveyor) mission
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Observation of diffuse soft X-rays with very low surface brightness can provide us cosmologically important information which is related to the missing baryon problem, large scale structure, etc. Diffuse Intergalactic Oxygen Surveyor(DIOS) mission is planned to observe such source, which may be originated by Warm Hot Intergalactic Medium(WHIM). For this purpose, the X-ray optical system designed under the condition of limited resource of the satellite, such as weight and size. Remarkable characteristic of this sysytem is to four time reflection to fit their observational instrument to the small satellite. Numerical simulations were performed to evaluate X-ray observational performance such as grasp, angular resolution, field of view. In addition to the promissing way of mirror fabrication, aluminum foil based epoxy replication method, it will also be described that the present status of four-stage full shell mirror development.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuzuru Tawara, Akihiro Furuzawa, Yasushi Ogasaka, Keisuke Tamura, Takuya Miyazawa, Machiko Sakashita, and Rika Takahashi "Development of a four-stage x-ray telescope for the DIOS (Diffuse Intergalactic Oxygen Surveyor) mission", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004);


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