SAPPHIRE windows have been used in laboratory devices where radiation from the ultraviolet through the infrared must be transmitted. Sapphire windows have been valuable in chambers which contain the alkali metals, for the alkali metals are known to react with Pyrex 7740 glass and quartz leaving them pitted and darkened. This paper is a report on an improved glass-to-sapphire end window seal.
E. E. Stepp and R. A. Anderson, "Glass-to-Sapphire End Window Seals," Review of Scientific Instruments, vol. 33, no. 1, pp. 119 - 120, American Institute of Physics (AIP), Jan 1962.
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© 1962 American Institute of Physics (AIP), All rights reserved.