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The research work concerned the behaviour of actinides and other radionuclides during the melting of contaminated steel. It confirmed the expected homogeneous distribution of the radionuclides selected for the experiments (Fe 55 and Ni 63) in the metal ingot, as was already known from the behaviour of Co 60. The latter radionuclide may be used as an indicator nuclide for Fe 55 and Ni 63, both of which are difficult to measure. C 14 also showed a homogeneous distribution in the ingot (carbon steel). As expected for the melt technique, strontium is released to the slag. In principle this is also valid for actinides, but depends to some extent on their chemical form (elemental uranium, UO(2)), the added tracer quantity and the quantity of slag forming material. A direct alpha-measurement technique has been developed for steel samples and may be suitable for free release measurements of alpha-emitting steel waste decontaminated by the melt technique.

Additional information

Authors: SCHUSTER E, Siemens AG, Erlangen (DE);HAAS E W, Siemens AG, Erlangen (DE)
Bibliographic Reference: EUR I2875 EN (1990) 35 pp., FS, ECU 5
Availability: (2)
ISBN: ISBN 92-826-1620-7
Record Number: 199011364 / Last updated on: 1994-12-01
Original language: en
Available languages: en