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Proceedings Paper

Energy response of the x-ray imaging spectrometer (XIS) on Suzaku
Author(s): Hironori Matsumoto; Hiroshi Nakajima; Hiroya Yamaguchi; Takeshi G. Tsuru; Katsuji Koyama; Kiyoshi Hayashida; Ken'ichi Torii; Masaaki Namiki; Hiroshi Tsunemi; Hiroshi Murakami; Masanobu Ozaki; Tadayasu Dotani; Beverly LaMarr; Steven E. Kissel; Marshall W. Bautz
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Paper Abstract

The X-ray Imaging Spectrometer on the Suzaku satellite consists three front-illuminated (FI) and one back-illuminated (BI) CCD cameras. Using ground calibration data taken at Kyoto University and Osaka University, we obtained the energy response of the XIS, which consists of at least six components: 1. a main peak, 2. a sub peak, 3. a triangle component, 4. a Si escape, 5. a Si line, and 6. a constant component. The relation between the energy and the pulse height was also estimated, which is called as a gain. The relation cannot be represented with a single linear function. Then we divided the gain into two parts at the Si edge (1.839 keV) and each part can be described with a single linear function. Thus there is a discontinuity at 1.839 keV in the XIS gain. We have monitored the variation of the gain and energy resolution in orbit by observing the calibration source of 55Fe illuminating two corners of each CCD.

Paper Details

Date Published: 15 June 2006
PDF: 8 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 626641 (15 June 2006); doi: 10.1117/12.671033
Show Author Affiliations
Hironori Matsumoto, Kyoto Univ. (Japan)
Hiroshi Nakajima, Kyoto Univ. (Japan)
Hiroya Yamaguchi, Kyoto Univ. (Japan)
Takeshi G. Tsuru, Kyoto Univ. (Japan)
Katsuji Koyama, Kyoto Univ. (Japan)
Kiyoshi Hayashida, Osaka Univ. (Japan)
Ken'ichi Torii, Osaka Univ. (Japan)
Masaaki Namiki, Osaka Univ. (Japan)
Hiroshi Tsunemi, Osaka Univ. (Japan)
Hiroshi Murakami, Japan Aerospace Exploration Agency (Japan)
Masanobu Ozaki, Japan Aerospace Exploration Agency (Japan)
Tadayasu Dotani, Japan Aerospace Exploration Agency (Japan)
Beverly LaMarr, Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology (United States)
Steven E. Kissel, Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology (United States)
Marshall W. Bautz, Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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