Multi-band Solar Full-disk Extreme Ultraviolet Imager |
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| Authors: | PENG Ji-long FENG Tao-jun SHI En-tao LI Lin YU Qian ZHANG Kai NIE Xiang-yu MA Zi-liang |
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| Institution: | 1. Beijing Institute of Spacecraft EnvironmentEngineering, Beijing 100094;2. National Space Science Center, Chinese Academy of Sciences, Beijing 100190;3. School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081 |
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| Abstract: | Solar Extreme Ultraviolet (EUV) imaging observation is an important measure for the researches of solar activities and coronal plasma physics. But the traditional EUV imager and spectrograph can hardly achieve simultaneously the high spectral resolution and wide field-of-view of solar imaging. This paper has designed a new type of solar EUV multi-band imager, by adopting a kind of slitless grating and grazing incidence structure, it can realize the solar full-disk imaging of high spectral and spatial resolution. The field-of-view of the imager can be as broad as 47′. The spectral resolution is 2×10?3nm per pixel, and the spatial resolution is 1.4′ per pixel. The temporal resolution of the solar full-disk is better than 60 s. The analysis of the solar full-disk spectral image and system response shows that the imager can observe the morphological evolutions of various solar activities, and can provide more comprehensive data for the researches of solar physics and space weather forecast. |
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| Keywords: | Extreme ultraviolet Solar imaging Imager Space weather |
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