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Abstract

This paper describes the different accountancy methods used in ETHEL (European Tritium Handling Experimental Laboratory) and the operational and calibration procedures employed. The three accountancy methods used are PVT-C, weight plus concentration and calorimetry. PVT-C is the most common technique and is based on the pressure, volume, temperature and concentration of a tritiated gas. A comparator balance is used for large quantities of tritium contained on transportable uranium getter beds. The concentration of a tritiated gas can be determined via two independent methods, gas chromatography and mass spectrometry using an Omegatron. Calorimetry uses the decay heat of tritium, which has an accuracy equal to or surpassing that of conventional techniques.

Additional information

Authors: ENGELMANN U, JRC Ispra (IT);THORNTON M I, JRC Ispra (IT);VASSALLO G, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 18th Symposium on Fusion technology, Karlsruhe (DE), August 22-26, 1994
Availability: Available from (1) as Paper EN 38557 ORA
Record Number: 199411287 / Last updated on: 1994-12-06
Category: PUBLICATION
Original language: en
Available languages: en
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