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Proceedings Paper

Design study of x-ray telescope onbard NeXT
Author(s): Akihiro Furuzawa; Takashi Okajima; Yasushi Ogasaka; Keisuke Tamura; Yuzuru Tawara; Koujun Yamashita
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Paper Abstract

Our previous balloon borne experiment, named InFOCuS, proved the imaging capability of the hard X-ray telescope in the energy band above 20 keV. The hard X-ray telescope onboard InFOCuS is the multi-nested thin foil optics using the platinum-carbon depth graded multilayers. Based on the experience of InFOCuS project, we are planing to develop the extremely broad-band X-ray telescope covering the energy range from 0.1 to 80 keV for the future Japanese X-ray astronomical satellite, NeXT (New X-ray Telescope), proposed to launch in 2010. We present here the scientific objectives for X-ray observations in that energy band and the investigation of the requirements for the NeXT X-ray telescope. In order to search the non-thermal emission from the rich clusters of galaxies with cluster-scale radio halo, the required effective area is at least 1000 cm2 at 40 keV and the field of view should be larger than 10 arcmin × 10 arcmin. From the effective area estimated from the current design of multilayer parameters, it can be achieved with 4 telescopes with focal length of 12 m and diameter of 60 cm.

Paper Details

Date Published: 11 March 2003
PDF: 8 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461422
Show Author Affiliations
Akihiro Furuzawa, Nagoya Univ. (Japan)
Takashi Okajima, Nagoya Univ. (Japan)
Yasushi Ogasaka, Nagoya Univ. (Japan)
Keisuke Tamura, Nagoya Univ. (Japan)
Yuzuru Tawara, Nagoya Univ. (Japan)
Koujun Yamashita, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

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