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Abstract

The European Tritium Handling Experimental Laboratory (ETHEL) is a new tritium facility at JRC Ispra. It is envisaged that it will be licensed for 37 PBq (1 MCi or 100 g) of tritium. The management of tritium in the laboratory involves three separate systems. The Tritium Receipt and Storage System (TRSS) provides the means for receiving, sampling, assaying, storing and quantifying tritium to be supplied to experiments. The plant includes six fixed uranium storage beds, assay tanks and sampling vials, and a pumping system. Tritium delivered to the laboratory employs an AMERSHAM 0035 Mark IV assembly which is based on a portable uranium getter with a nominal operating capacity of about 2 PBq. For standardisation purposes, the Tritium Distribution System (TDS) also utilises these getters for supplying tritium to experiments. The TDS getters are provided with an aluminium containment pot to assist glove-box handling operations. The Tritium Collection System (TCS) is used to transfer contaminated tritium from experiments to the laboratory's Rework Unit; tritium containing only inert gases is returned to the TRSS using a portable getter. The TCS consists of a double contained piping system linking the vast majority of experimental glove-boxes to the Rework Unit secondary containment. Contaminated gas transfer will employ a combination of evacuation and purging operations.

Additional information

Authors: BOURDON J, JRC Ispra (IT);VASSALLO G, JRC Ispra (IT);MAGNI G, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 4th Topical Meeting on Tritium Technology, Albuquerque (US), Sept. 29 - Oct. 4, 1991
Availability: Available from (1) as Paper EN 36252 ORA
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