Abstract
Abstract The removal of free tritium (primarily in the oxide form) is required for personnel and environmental protection prior to maintenance inslde the Tokamak Fusion Test Reactor (TFTR) vacuum vessel. The conventional methods for reducing the tritium hazard involve removing gas from TFTR and processing it through catalyst and molecular sieve beds using the Tritium Processing Systems. Among these methods, the most effective is the introduction of ambient air into the vacuum vessel which improves the removal of tritium oxide. Princeton Plasma Physics Laboratory (“PPPL”) refers to this activity as pump-purges. Pump-purges are very effective, but significantly increase tiie amount of radioactive waste because of the number of Disposable Molecular Sieve Beds (“DMSB”) required.
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