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Proceedings Paper

Low-reflectivity materials for the vacuum UV: Mg and Ag surfaces
Author(s): Kamil A. Moldosanov; Michael A. Samsonov; Lilia S. Kim; Reinhold Henneck
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Paper Abstract

We have developed absorptive Mg coatings for the vacuum UV (VUV) wavelength range. The total hemispherical reflectivity at normal incidence was measured at 121.6 nm. The reflectivity of the Mg coating produced by magnetron sputtering (presumably from the vapor phase) is close to 1%, comparable to the best known coatings. In contrast to the latter they are mechanically robust. After storage in air for 2 years the reflectivity increased by a factor 2. The reflectivity of Mg and Ag coatings produced by thermal evaporation was observed to be about 2 - 3%. The reflectivity of the Ag coatings proved to be stable over a period of 58 months in air.

Paper Details

Date Published: 15 October 1997
PDF: 5 pages
Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); doi: 10.1117/12.278909
Show Author Affiliations
Kamil A. Moldosanov, Special Design Office OKB Aalam and Institute of Physics (Kirgizstan)
Michael A. Samsonov, Institute of Physics (Kirgizstan)
Lilia S. Kim, Institute of Physics (Kirgizstan)
Reinhold Henneck, Paul-Scherrer-Institut (Switzerland)


Published in SPIE Proceedings Vol. 3114:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII
Oswald H. W. Siegmund; Mark A. Gummin, Editor(s)

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