11 March 2003 X-ray imaging spectrometer (XIS) on board Astro-E2
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We report on design updates for the XIS (X-ray Imaging Spectrometer) on-board the Astro-E2 satellite. Astro-E2 is a recovery mission of Astro-E, which was lost during launch in 2000. Astro-E2 carries a total of 5 X-ray telescopes, 4 of which have XIS sensors as their focal plane detectors. Each XIS CCD camera covers a field of view of 19×19 arcmin in the energy range of 0.4-12 keV. The design of the Astro-E2 XIS is basically the same as that for Astro-E, but some improvements will be implemented. These are (1) CCD charge injection capability, (2) a revised heat-sink assembly, and (3) addition of a 55Fe radio-isotope on the door. Charge injection may be used to compensate for and calibrate radiation-induced degradation of the CCD charge transfer efficiency. This degradation is expected to become significant after a few year's operation in space. The new heat-sink assembly is expected to increase the mechanical reliability and cooling capability of the XIS sensor. The new radio-isotope on the door will provide better calibration data. We present details of these improvements and summarize the overall design of the XIS.
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Tadayasu Dotani, Masanobu Ozaki, Hiroshi Murakami, Katsuji Koyama, Takeshi G. Tsuru, Hironori Matsumoto, Hiroshi Tsunemi, Kiyoshi Hayashida, Emi Miyata, Shunji Kitamoto, Hisamitsu Awaki, Mark W. Bautz, John P. Doty, George R. Ricker, Richard F. Foster, Gregory Y. Prigozhin, Steven E. Kissel, Barry E. Burke, Allen D. Pillsbury, "X-ray imaging spectrometer (XIS) on board Astro-E2", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461313; https://doi.org/10.1117/12.461313


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