ВСПОМОГАТЕЛЬНЫЙ ЭЛЕМЕНТ ДЛЯ ДОЗАТОРОВ ЩЕЛОЧНЫХ МЕТАЛЛОВ

摘要

An accessory member for alkali metals dispensers is provided in the form of a screen ( 30; 40; 60 ) of substantially tubular shape, one end ( 34; 44; 64 ) of which can be applied to an alkali metals dispenser ( 10 ). The cross-section of the one end is superposable to an entire alkali metals emission zone ( 14 ) of the dispenser ( 10 ). The contact portion between the one end ( 34, 44; 64 ) and the dispenser ( 10 ) is made with a low thermal conductivity material. The screen ( 30; 40; 60 ) is provided with an internal surface having a high specific area.