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11 October 2004 Ground-based x-ray calibration of the Astro-E2 x-ray telescope: I. With pencil beam
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We present X-ray characteristics of X-ray telescopes (XRTs) onboard the Astro-E2 satellite. It is scheduled to be launched in February 2005. We have been performed X-ray characterization measurements of XRTs at Institute of Space and Astronautical Science (ISAS) since January 2003. We adopted a raster scan method with a narrow X-ray pencil beam. Angular resolution of the Quadrants composed of the Astro-E2 XRT was evaluated to be 1'.6-2'.2 (HPD; Half Power Diameter), irrespective of the X-ray energy, while those of the Astro-E XRT was 2'.0-2'.2. The effective area of a telescope is approximately 450, 330, 250, and 170 [cm2] at energies of 1.49, 4.51, 8.04, and 9.44 keV, respectively. The field of view (FOV) of the XRTs which is defined as Full Width Half Maximum (FWHM) of the vignetting function is ≈18' at 4.51 keV. We summarize these characters of the XRTs.
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Akiharu Itoh, Yoshito Haba, Akira Hayakawa, Ryo Iizuka, Chiaki Inoue, Hirohiko Inoue, Manabu Ishida, Kei Itoh, Hideyo Kunieda, Yoshitomo Maeda, Kazutami Misaki, Hideyuki Mori, Masataka Naitou, Shunsaku Okada, Ryo Shibata, Tomoo Shimizu, and Yushi Yokoyama "Ground-based x-ray calibration of the Astro-E2 x-ray telescope: I. With pencil beam", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004);


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