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Ultrasmooth beryllium substrates for solar astronomy in extreme ultraviolet wavelengths
Applied Optics, 2019The paper describes a multistage method of forming ultrasmooth substrates based on bulk beryllium. Such substrates are suggested to be used for multilayer extreme ultraviolet mirrors of spacecraft missions on solar corona investigations in the spectral range 17.1-58.4 nm. The technique for chemical nickel plating of the sample surface is described. The
N. I. Chkhalo +10 more
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Advanced materials for multilayer mirrors for extreme ultraviolet solar astronomy
Applied Optics, 2016We provide an analysis of contemporary multilayer optics for extreme ultraviolet (EUV) solar astronomy in the wavelength ranges: λ=12.9-13.3 nm, λ=17-21 nm, λ=28-33 nm, and λ=58.4 nm. We found new material pairs, which will make new spaceborne experiments possible due to the high reflection efficiencies, spectral resolution, and long-term ...
S A, Bogachev +7 more
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2003
This text describes the development of astronomy in the Extreme Ultraviolet (EUV) wavelength range, from the first rocket-based experiments in the late 1960s through to later satellite missions. Discussions of the results from important space projects are followed by an analysis of the contributions made by EUV astronomy to the study of specific groups
Martin A. Barstow, Jay B. Holberg
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This text describes the development of astronomy in the Extreme Ultraviolet (EUV) wavelength range, from the first rocket-based experiments in the late 1960s through to later satellite missions. Discussions of the results from important space projects are followed by an analysis of the contributions made by EUV astronomy to the study of specific groups
Martin A. Barstow, Jay B. Holberg
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Astronomy and the Extreme Ultraviolet Explorer satellite
Science, 1994The extreme ultraviolet wave band (100 to 912 angstroms) was thought until recently to be useless to astronomy, primarily because the opacity of the interstellar medium would prevent observations at these wavelengths. However, the interstellar medium has been found to be markedly inhomogeneous in both density and ionization state and the sun is ...
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Scientific American, 1994
▪ Abstract Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were dismissed during the early years of space astronomy as impossible, primarily because of the mistaken view that radiation in this band would be absorbed by the interstellar medium.
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▪ Abstract Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were dismissed during the early years of space astronomy as impossible, primarily because of the mistaken view that radiation in this band would be absorbed by the interstellar medium.
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Polarimetry of extreme ultraviolet lines in solar astronomy
Optical Engineering, 1991Ways are suggested in which recent advancements in the fabrication of ultrasmooth, low scatter flow-polished mirror substrates and high-quality multilayer and interference film coatings can be used to create novel optical instruments for observing linear-polarization effects in the outer solar atmosphere.
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Innovations in Optical Technologies for Extreme Ultraviolet Astronomy
Space Optics for Astrophysics and Earth and Planetary Remote Sensing, 1988Extreme ultraviolet (EUV) astronomy has been a late arrival to the scene of space astronomy. Part of the reason for this was an incorrect appraisal of incomplete astronomical knowledge, which lead to the belief that, intrinsically, this kind of astronomy could not be carried out.
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<title>Normal Incidence Multilayer Mirrors For Extreme Ultraviolet Astronomy</title>
SPIE Proceedings, 1984Robert A. Stern +3 more
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