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Proceedings Paper

Development of a four-stage x-ray telescope for the DIOS (Diffuse Intergalactic Oxygen Surveyor) mission
Author(s): Yuzuru Tawara; Akihiro Furuzawa; Yasushi Ogasaka; Keisuke Tamura; Takuya Miyazawa; Machiko Sakashita; Rika Takahashi
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Paper Abstract

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.

Paper Details

Date Published: 11 October 2004
PDF: 5 pages
Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.550881
Show Author Affiliations
Yuzuru Tawara, Nagoya Univ. (Japan)
Akihiro Furuzawa, Nagoya Univ. (Japan)
Yasushi Ogasaka, Nagoya Univ. (Japan)
Keisuke Tamura, Nagoya Univ. (Japan)
Takuya Miyazawa, Nagoya Univ. (Japan)
Machiko Sakashita, Nagoya Univ. (Japan)
Rika Takahashi, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 5488:
UV and Gamma-Ray Space Telescope Systems
Guenther Hasinger; Martin J. L. Turner, Editor(s)

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