Development of four-stage x-ray telescope for DIOS (diffuse intergalactic oxygen surveyor) mission

Yuzuru Tawara, Akihiro Furuzawa, Yasushi Ogasaka, Keisuke Tamura, Takuya Miyazawa, Machiko Sakashita, Rika Takahashi

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


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 system is using 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 desribed that the present status of four-stage full shell mirror development.

Original languageEnglish
Pages (from-to)750-754
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 2
Publication statusPublished - 2004
Externally publishedYes
EventUV and Gamma-Ray Space Telescope Systems - Glasgow, United Kingdom
Duration: 21-06-200424-06-2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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