RITCEX EXERCISE ON INPUT TANK VOLUME CALIBRATION. RESULTS OF THE USE OF TRACER TECHNIQUES
Lutetium, lead and neodymium have been used during the RITCEX exercise to evaluate the feasibility of the tracer technique for the calibration of a reprocessing input tank and the assay of the fissile material content by the concentration ratio method. Samples were taken at nominal volumes of 500, 1600 and 2600 liter. The tracers appeared to be homogeneously mixed at the latter two sampling stages. The concentration measurements carried out by the different laboratories show the relative importance of systematic error sources in the mass spectrometric isotopic dilution measurements. In some of the experiments an average deviation for the solution weight calculated from the tracer technique with respect to the reference weight as low as 4 kg at the 1600 kg level and 5 kg at 2600 kg level has been obtained. The mean uranium inventory calculated from the measurements using the method of concentration ratios agrees within 0.5% with the reference value. The range of the individual measurements expressed as an interlaboratory standard deviation is of the order of 1%.
Bibliographic Reference: 7TH ESARDA SYMPOSIUM ON SAFEGUARDS AND NUCLEAR MATERIAL MANAGEMENT, LIEGE (BELGIUM), MAY 21-23, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31946 ORA
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Record Number: 1989123092300 / Last updated on: 1987-01-01
Available languages: en