Design study of x-ray telescope onbard NeXT

Akihiro Furuzawa; Takashi Okajima; Yasushi Ogasaka; Keisuke Tamura; Yuzuru Tawara; Koujun Yamashita

doi:10.1117/12.461422

11 March 2003 Design study of x-ray telescope onboard NeXT

Akihiro Furuzawa, Takashi Okajima, Yasushi Ogasaka, Keisuke Tamura, Yuzuru Tawara, Koujun Yamashita

Proceedings Volume 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy; (2003) https://doi.org/10.1117/12.461422
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

Citation Download Citation

Akihiro Furuzawa, Takashi Okajima, Yasushi Ogasaka, Keisuke Tamura, Yuzuru Tawara, and Koujun Yamashita "Design study of x-ray telescope onboard NeXT", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); https://doi.org/10.1117/12.461422

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