Solar Physics

, Volume 249, Issue 2, pp 263–279 | Cite as

The Hinode X-Ray Telescope (XRT): Camera Design, Performance and Operations

  • R. Kano
  • T. Sakao
  • H. Hara
  • S. Tsuneta
  • K. Matsuzaki
  • K. Kumagai
  • M. Shimojo
  • K. Minesugi
  • K. Shibasaki
  • E. E. DeLuca
  • L. Golub
  • J. Bookbinder
  • D. Caldwell
  • P. Cheimets
  • J. Cirtain
  • E. Dennis
  • T. Kent
  • M. Weber
Article

Abstract

The X-ray Telescope (XRT) aboard the Hinode satellite is a grazing incidence X-ray imager equipped with a 2048×2048 CCD. The XRT has 1 arcsec pixels with a wide field of view of 34×34 arcmin. It is sensitive to plasmas with a wide temperature range from < 1 to 30 MK, allowing us to obtain TRACE-like low-temperature images as well as Yohkoh/SXT-like high-temperature images. The spacecraft Mission Data Processor (MDP) controls the XRT through sequence tables with versatile autonomous functions such as exposure control, region-of-interest tracking, flare detection, and flare location identification. Data are compressed either with DPCM or JPEG, depending on the purpose. This results in higher cadence and/or wider field of view for a given telemetry bandwidth. With a focus adjust mechanism, a higher resolution of Gaussian focus may be available on-axis. This paper follows the first instrument paper for the XRT (Golub et al., Solar Phys.243, 63, 2007) and discusses the design and measured performance of the X-ray CCD camera for the XRT and its control system with the MDP.

Keywords

Sun: corona Sun: X-rays 

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • R. Kano
    • 1
  • T. Sakao
    • 2
  • H. Hara
    • 1
  • S. Tsuneta
    • 1
  • K. Matsuzaki
    • 2
  • K. Kumagai
    • 1
  • M. Shimojo
    • 3
  • K. Minesugi
    • 2
  • K. Shibasaki
    • 3
  • E. E. DeLuca
    • 4
  • L. Golub
    • 4
  • J. Bookbinder
    • 4
  • D. Caldwell
    • 4
  • P. Cheimets
    • 4
  • J. Cirtain
    • 4
  • E. Dennis
    • 4
  • T. Kent
    • 4
  • M. Weber
    • 4
  1. 1.National Astronomical Observatory of JapanTokyoJapan
  2. 2.Institute of Space and Astronautical ScienceJapan Aerospace Exploration AgencyKanagawaJapan
  3. 3.Nobeyama Solar Radio ObservatoryNational Astronomical Observatory of JapanNaganoJapan
  4. 4.Smithsonian Astrophysical ObservatoryCambridgeUSA

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