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Proceedings Article

Energy response of the x-ray imaging spectrometer (XIS) on Suzaku

[+] Author Affiliations
Hironori Matsumoto, Hiroshi Nakajima, Hiroya Yamaguchi, Takeshi G. Tsuru, Katsuji Koyama

Kyoto Univ. (Japan)

Kiyoshi Hayashida, Ken'ichi Torii, Masaaki Namiki, Hiroshi Tsunemi

Osaka Univ. (Japan)

Hiroshi Murakami, Masanobu Ozaki, Tadayasu Dotani

Japan Aerospace Exploration Agency (Japan)

Beverly LaMarr, Steven E. Kissel, Marshall W. Bautz

Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology

Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 626641 (June 15, 2006); doi:10.1117/12.671033
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From Conference Volume 6266

  • Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
  • Martin J. L. Turner; Günther Hasinger
  • Orlando, FL | May 24, 2006

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.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Hironori Matsumoto ; Hiroshi Nakajima ; Hiroya Yamaguchi ; Takeshi G. Tsuru ; Katsuji Koyama, et al.
"Energy response of the x-ray imaging spectrometer (XIS) on Suzaku", Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 626641 (June 15, 2006); doi:10.1117/12.671033; http://dx.doi.org/10.1117/12.671033


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