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Characterization and performance of the InFOCμS 20-40 keV x-ray focusing mirror

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

Research output: Contribution to journalArticlepeer-review

Abstract

Mass production of replicated thin aluminum x-ray reflecting foils for the InFOCμS (International Focusing Optics Collaboration for Micro-Crab Sensitivity) balloon payload is complete, and the full mirror has been assembled. InFOCμS is an 8-meter focal length hard x-ray telescope scheduled for first launch in July 2001 and will be the first instrument to focus and image x-rays at high energies (20-40 keV) using multilayer-based reflectors. The individual reflecting elements are replicated thin aluminum foils, in a conical approximation Wolter-I system similar to those built for ASCA and ASTRO-E. These previous imaging systems achieved half-power-diameters of 3.5 and 1.7-2.1 arcminutes respectively. The InFOCμS mirror is expected to have angular resolution similar to the ASTRO-E mirror. The reflecting foils for InFOCμS, however, utilize a vertically graded Pt/C multilayer to provide broad-band high-energy focusing. We present the results of our pre-flight characterization of the full mirror, including imaging and sensitivity evaluations. If possible, we will include imaging results from the first flight of a multilayer-based high-energy focusing telescope.

Original languageEnglish
Pages (from-to)115-126
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4496
DOIs
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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