多谱段全日面极紫外成像仪

彭吉龙; 冯桃君; 石恩涛; 李林; 于钱; 张凯; 聂翔宇; 马子良

doi:10.11728/cjss2019.02.214

多谱段全日面极紫外成像仪

doi: 10.11728/cjss2019.02.214

1. 北京卫星环境工程研究所北京 100094;
2. 中国科学院国家空间科学中心北京 100090;
3. 北京理工大学光电学院北京 100081

基金项目:

国家中基础研究发展计划项目资助（2016YFB0501300，2016YFB0501304）

详细信息

作者简介:

彭吉龙,E-mail:jlpeng@hotmail.com

中图分类号: V447
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- 文章访问数: 1493
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- 被引次数: 0
出版历程
- 收稿日期: 2018-03-05
- 修回日期: 2018-07-05
- 刊出日期: 2019-03-15

Multispectral Full-disk Solar Extreme Ultraviolet Imager

1. Beijing Institute of Spacecraft Environment Engineering, 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

摘要

摘要: 在极紫外波段对太阳进行成像观测是研究太阳活动、日冕中等离子体物理特性的重要手段.传统极紫外成像仪或光谱仪无法同时实现高光谱分辨率和大视场的太阳成像.本文设计了一种新型太阳极紫外多谱段成像系统，采用无狭缝光栅分光方式实现了高光谱分辨率和空间分辨率的全日面成像，成像视场可达47'，光谱分辨率每像素2×10^-3 nm，空间分辨率每像素1.4'，全日面时间分辨率优于60s.通过分析谱线的全日面成像图和系统响应，表明成像仪能大范围的观测太阳活动形态演化，为太阳物理研究和空间天气预报提供更完整的观测数据.
- 极紫外 /
- 太阳成像 /
- 成像仪 /
- 空间天气
Abstract: Solar Extreme Ultraviolet (EUV) has violent variation during solar eruption. Solar EUV imagers are important data for solar activities evolution analyses. Solar EUV spectral information can be applied in high temperature coronal plasma research. But both the traditional solar EUV telescope and the slit spectrograph have their limitations. High spectral resolution and wide field-ofview cannot be simultaneously achieved by either the traditional EUV imager or the spectrometer. The design of a new type of solar EUV multispectral imager is introduced in this paper. The full-disk solar image with high spectral and spatial resolution can be obtained by a kind of slitless grating with a grazing incidence structure. The field-of-view of the imager can be as broad as 47'. The high spectral resolution is 2×10^-3 nm per pixel and the spatial resolution is 1.4' per pixel. The temporal resolution of the full-disk is better than 60 s. The analysis of the full-disk spectral image and system response shows that the imager can observe the evolution of global solar activities, and can provide more comprehensive data for solar physics research and space weather forecast.
- Extreme ultraviolet /
- Solar imaging /
- Imager /
- Space weather

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参考文献(15)

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