Community Research and Development Information Service - CORDIS


Low and medium radioactive waste are released during operation of nuclear power stations. The waste must be properly stored and it is necessary that the waste handling up to interim or final storage is monitored. Continuous process control is preferred above inspection just before storage. With respect to the on-line control during the waste campaign at which the waste is cemented some tests are needed concerning the mechanical and radiological characterization of the waste cement mixture. Further the presence of the cement-poisons must be determined. In this research project, where KFA-Jülich, Laborelec and KEMA cooperate, the aim is to develop test methods in this field. The results are presented in this report.
Laboratory-scale examinations were performed using four non-destructive methods (ultrasonics, maturity, viscosity and impedance). It was established that appropriate methods for on-line determination of cement poison concentrations are photometry and the use of selective electrodes. Validation experiments with radioactive suspensions were performed at the power stations of Doel (Belgium) and Dodewaard (the Netherlands). The non-destructive on-line radiological characterization can be based only on the detection of emitted gamma photons.

Additional information

Authors: BLOEM P J C ET AL, KEMA Environmental Technology, Arnhem (NL);HEIMBACH H ET AL, KFA-Jülich (DE);ROOFTHOOFT R ET AL, Laborelec, Linkebeek (BE)
Bibliographic Reference: EUR 17106 EN (1997) 75pp., FS, ECU 15.00
Availability: Available from the (2)
ISBN: ISBN 92-827-8984-5
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