Creating a thin layer of dense cesium vapor under high temperature and static pressure

A cesium cell is built for optical absorption measurements in the dense vapor phase. The cesium layer, 10 μm thick and heated up to 1500°C, is created in a niobium tube between the ends of two long sapphire rods. The whole is pressurized with purified argon up to 110 bar, in a high-pressure vessel w...

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Bibliographic Details
Published in:Physica B + C 1986-05, Vol.139, p.928-930
Main Authors: Rous, Jean, Leycuras, André
Format: Article
Language:English
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Summary:A cesium cell is built for optical absorption measurements in the dense vapor phase. The cesium layer, 10 μm thick and heated up to 1500°C, is created in a niobium tube between the ends of two long sapphire rods. The whole is pressurized with purified argon up to 110 bar, in a high-pressure vessel with optical windows. A very high efficiency thermal insulation prevents anomalous heating of the high-pressure vessel walls. Typical measurements results are presented and a further use of this cell is suggested.
ISSN:0378-4363
DOI:10.1016/0378-4363(86)90732-1