InFOCμS balloon-borne hard x-ray experiment with multilayer supermirror x-ray telescope

Y. Tawara, K. Yamashita, Y. Ogasaka, K. Tamura, K. Haga, T. Okajima, S. Ichimaru, S. Takahashi, A. Gotou, H. Kitou, S. Fukuda, Y. Kamata, A. Furuzawa, F. Akimoto, T. Yoshioka, K. Kondou, Y. Haba, T. Tanaka, H. Kunieda, K. MisakiJ. Tueller, P. J. Serlemitsos, K. W. Chan, Y. Soong, S. M. Owens, F. Berendse, W. H. Baugartner, H. Krimm, H. Barber, E. T. Young

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We have been developing the high throughput hard X-ray telescope, using reflectors coated with the depth graded multilayer known as supermirror, which is considered to be a key technology for future satellite hard X-ray imaging missions. InFOCμS, the International Focusing Optics Collaboration for μ-Crab Sensitivity is the project of the balloon observation of cosmic hard X-ray source with this type of hard X-ray telescope and CdZnTe pixel detector as a focal plane imager. For the first InFOCμS balloon experiment, we developed the hard X-ray telescope with outermost diameter of 40cm, focal length of 8m and energy band pass of 20 - 40 keV, for which Pt/C multilayer was used. From the pre-flight X-ray calibration, we confirmed its energy band and imaging capability of 2 arcmin HPD and 10 arcmin FOV of FWHM, and a effective area of 50 cm2 for 20 - 40 keV X-ray. We report the current status of our balloon borne experiment and performance of our hard X-ray telescope.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2002
Externally publishedYes

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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