Design of device for observing the solar on the moon in multispectrum of extreme ultraviolet

Gang Huang; Qirong Xiao; Chao Zheng; Kaili Chu; Zhe Jin

doi:10.1117/12.790889

22 February 2008 Design of device for observing the solar on the moon in multispectrum of extreme ultraviolet

Gang Huang, Qirong Xiao, Chao Zheng, Kaili Chu, Zhe Jin

Proceedings Volume 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology; 66221L (2008) https://doi.org/10.1117/12.790889
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

Solar EUV band has a very important meaning of detecting the physical processes and its controlling factors of solar surface, and the Earth's environment as well as changes in the Earth's climate. In the thesis we introduce the basic design of the solar ultraviolet telescope and imaging system .Because of small-band transmission of the vacuum ultraviolet optical prism, we take double-Cassegrain reflector optical system. The sunlight could be gathered to CCD detection system in order to image the sun in three specific spectrums involving 30.4nm, 58.4nm and 121.6nm. The reason we choose the center wavelength of 30.4 nm. 58.4nm and 121.6nm is that these three spectrums contain a lot of bright lines, have a great radiation flux and play a significant role in ionizing and heating the Earth's upper atmosphere. We make UV telescope imaging system and ultraviolet light as a whole, then pump the whole system into vacuum to simulate space environment. We introduce the calibration device in our system innovatively. Our thesis gives a detailed description of the way of simulation of optical design, the vacuum system design and system calibration. Owing that our system have the characteristic of Lightness, simple structure, small power, it is rather fit for astronomical observations on the moon. The imaging results could provide very important research data for the middle and upper atmospheric composition and ionospheric electron changes in density and communications research.

Citation Download Citation

Gang Huang, Qirong Xiao, Chao Zheng, Kaili Chu, and Zhe Jin "Design of device for observing the solar on the moon in multispectrum of extreme ultraviolet", Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 66221L (22 February 2008); https://doi.org/10.1117/12.790889

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KEYWORDS

Ultraviolet radiation

Imaging systems

Sun

Mirrors

Calibration

Charge-coupled devices

Space telescopes

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