Use of Silver Chloride Seals for Cesium Vapor Devices

Abstract
A study of the utility of silver chloride (AgCl) seals for devices employing cesium vapor at pressures up to 0.1 mm Hg was carried out. Mass spectroscopic studies revealed that silver chloride reacts with hot cesium vapor. The reaction rate is, however, sufficiently slow to permit long‐life seals in cesiated tubes. A cesiated tube using an AgCl seal has been operated over an extended period without any signs of seal damage.

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