Wide field multi-spectral band extreme ultraviolet imager based on slit-free spectrum light-splitting

An extreme ultraviolet imaging, large field of view technology, applied in the field of solar exploration, can solve problems affecting spacecraft orbit, communication, navigation and positioning, and achieve the effect of accurate prediction

Inactive Publication Date: 2018-01-05
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Then affect the spacecraft orbit, communication, navigation and positioning, etc.

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  • Wide field multi-spectral band extreme ultraviolet imager based on slit-free spectrum light-splitting

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[0011] The following is a specific implementation manner of the content of the present invention, and the content of the present invention will be further clarified through the specific implementation mode below. Of course, the following specific embodiments are described only to illustrate different aspects of the present invention, and should not be construed as limiting the scope of the present invention. Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] see figure 1 , figure 1 It is a schematic diagram of the optical path of the large field of view multi-spectrum extreme ultraviolet imager based on the non-slit spectral spectroscopic analysis of the present invention. The large field of view multi-spectrum EUV imager based on the non-slit spectral splitting of the present invention includes two photoelectric sensors, a cylindrical lens, a multilayer mirror, a grazing incidence grating, a collimati...

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Abstract

The invention discloses a wide field multi-spectral band extreme ultraviolet imager based on slit-free spectrum light-splitting. The extreme ultraviolet imager herein includes two photoelectric sensors, a cylindrical lense, a multi-film reflector, and a grazing-incidence grating and the like. An extreme ultraviolet target imaging spectral coverage is collimated by a light path collimating unit. Anextreme ultraviolet light which is incident in parallel undergoes light splitting through the grazing-incidence grating. And a solar image with high spectral resolution is obtained. Under the condition of a small grazing incidence angle, an oval solar image which is approximate of approximate 1 dimension is formed, and the solar images of a plurality of spectral bands undergo the multi-film reflector so as to aggregate the energy of different spectral bands to form an image. Important spectral bands undergo 1 dimensional amplification through the cylindrical lense, and the 2 dimensional solarextreme ultraviolet image. According to the invention, the extreme ultraviolet imager can achieve high spatial resolution and hyperspectral resolution imaging of solar extreme ultraviolet spectral lines, and can predict solar bust activities in an in-time and accurate manner.

Description

technical field [0001] The invention belongs to the technical field of solar detection, and in particular, the invention relates to a multi-spectral extreme ultraviolet imager based on a large field of view without slit spectral splitting. Background technique [0002] Solar activities include flares and coronal mass ejections (CMEs), etc., which have a huge impact on the sun-terrestrial environment. A large amount of energy is released during the flare eruption, which causes the radiation in the extreme ultraviolet (10–120nm) band to increase several times to several orders of magnitude with solar activity. Radiation energy in this band is rapidly absorbed by the earth's atmosphere, resulting in changes in the photochemistry, dynamics, and energy balance in the upper atmosphere. It is the main energy source for the state changes of the earth's ionosphere and the middle and upper atmosphere, and is decisive for the disturbance of the ionosphere and the middle and upper atmos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42
Inventor 彭吉龙田东波马子良于钱杨继运聂翔宇张凯
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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