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Proceedings Paper

The soft x-ray photon-counting spectroscopic imager for the sun
Author(s): Taro Sakao; Noriyuki Narukage; Masumi Shimojo; Kyoko Watanabe; Yoshinori Suematsu; Shinsuke Imada; Shin-nosuke Ishikawa
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Paper Abstract

We present science and development activities of the soft X-ray photon-counting spectroscopic imager for the solar corona that we conceive as a possible scientific payload for the Japanese Solar-C mission. The imager employs a grazing-incidence sector mirror of Wolter-I type with which images of the corona are to be taken in a wide temperature range (1 MK to beyond 10 MK) with the highest-ever angular resolution (0.5"/pixel for a focal length of 4 m) as an Xray telescope for the Sun. Moreover, by employing a back-thinned CMOS image sensor as the focal-plane device, we attempmt to implement photon-counting capability with which imaging-spectroscopy of the X-ray corona will be performed for the first time, in the energy range from ~0.5 keV up to 10 keV. The imaging-spectroscopic observations will provide totally-new information on mechanism(s) for magnetic reconnection, generation of supra-thermal electrons in the reconnecting magnetic structure during flares, and for the generation of hot coronal plasmas (heated beyond a few MK) which may be responsible for the formation of the hot cores of solar active regions.

Paper Details

Date Published: 26 September 2013
PDF: 12 pages
Proc. SPIE 8862, Solar Physics and Space Weather Instrumentation V, 88620T (26 September 2013); doi: 10.1117/12.2024753
Show Author Affiliations
Taro Sakao, ISAS, Japan Aerospace Exploration Agency (Japan)
Noriyuki Narukage, ISAS, Japan Aerospace Exploration Agency (Japan)
Masumi Shimojo, National Astronomical Observatory of Japan (Japan)
Kyoko Watanabe, ISAS, Japan Aerospace Exploration Agency (Japan)
Yoshinori Suematsu, National Astronomical Observatory of Japan (Japan)
Shinsuke Imada, Nagoya Univ. (Japan)
Shin-nosuke Ishikawa, National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 8862:
Solar Physics and Space Weather Instrumentation V
Silvano Fineschi; Judy Fennelly, Editor(s)

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