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Tritium evaluation in graphite radioactive waste by microwave acid digestion

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Aurelia Magdalena DIANU and Mirela OLTEANU

Editorial: Revue Roumaine de Chimie, 59 (1), p.41-51, 2014.


A detailed analysis technique for tritium recovery from
contaminated graphite (similar to irradiated reactor graphite) was
established using microwave acid digestion followed by liquid
scintillation counting (LSC). Two types of liquid scintillation
cocktails were tested. For an added tritium radioactivity of
8.874·10-4 Bq·L-1 (2.218·10+3 Bq per graphite sample), equivalent
to tritium radioactivity in graphite wastes collected from thermal
column of Roumanian TRIGA (Training, Research, Isotopes,
General Atomics) 14 MW research reactor, the recovery percent
range of tritium was around 97 %.

Cuvinte cheie: chimie, inginerie chimicã // chemistry, chemical engineering