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Proceedings Paper

Design and fabrication of multi-foil hard x-ray telescope for space observations
Author(s): Yasushi Ogasaka; Koujun Yamashita; Ryo Shibata; Keisuke Tamura
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Paper Abstract

Hard X-ray telescope by means of optics is one of the key technologies for future X-ray observatory programs. Introducing a telescope to hard X-ray region above 10 keV will improve sensitivity by one or two orders of magnitude. The principle of hard X-ray telescope is a depth-graded multilayer (supermirror) and high throughput, nested thin-foil grazing incidence optics. We have successfully developed a hard X-ray telescope sensitive up to 50 keV for balloon program InFOCuS. Effective area of 50 cm2 at 30 keV and image quality of 2.5 arcmin (HPD) were obtained from ground-based measurement and were also confirmed by in-flight calibration. Recent development achieved an improvement of image quality roughly by a factor of two. Japan's future X-ray satellite program NeXT has been proposed based on our technology.

Paper Details

Date Published: 15 October 2005
PDF: 8 pages
Proc. SPIE 5962, Optical Design and Engineering II, 59621T (15 October 2005); doi: 10.1117/12.625116
Show Author Affiliations
Yasushi Ogasaka, Nagoya Univ. (Japan)
Koujun Yamashita, Nagoya Univ. (Japan)
Ryo Shibata, Nagoya Univ. (Japan)
Keisuke Tamura, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 5962:
Optical Design and Engineering II
Laurent Mazuray; Rolf Wartmann, Editor(s)

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