Variability in the vacuum-ultraviolet transmittance of magnesium fluoride windows

In the course of the development of a domed magnesium fluoride detector window for the Space Telescope Imaging Spectrograph, slated to be a second-generation instrument aboard the Hubble Space Telescope, sample window materials from various commercial sources displayed a wide variability in vacuum u...

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Bibliographic Details
Published inApplied optics (2004) Vol. 31; no. 1; p. 110
Main Authors Herzig, H, Fleetwood, Jr, C M, Toft, A R
Format Journal Article
LanguageEnglish
Published United States 01.01.1992
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Summary:In the course of the development of a domed magnesium fluoride detector window for the Space Telescope Imaging Spectrograph, slated to be a second-generation instrument aboard the Hubble Space Telescope, sample window materials from various commercial sources displayed a wide variability in vacuum ultraviolet transmittance. As a result a test program was undertaken in cooperation with the supplier of a prototype domed window to maximize transmittance. Results of the program have provided clues to the causes of the variations experienced, and they point to careful selection of raw materials and strict process control to achieve optimization.
ISSN:1559-128X
DOI:10.1364/AO.31.000110