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Abstract

Guided jointly by CBNM and KfK, a measurement evaluation programme on the determination of element and isotope content of input samples of reprocessing plants was carried out with the participation of 33 laboratories of 15 countries or international organizations under the auspices of ESARDA and with the support of IAEA. The element concentrations and isotopic compositions of all test materials were characterized by CBNM and NBS with high accuracy. The 60,000 items of analytical data reported by the participating laboratories were evaluated by statistical methods with regard to the calculation of estimates of the variances for the different incertainty components contributing to the total uncertainty of this analytical technique. Results are given in the form of comparative evaluation graphs. Considerable improvement of isotope dilution analysis in this safeguards relevant application during the last decade is shown as compared to the results obtained in the IDA-72 interlaboratory experiment, organised by KfK in 1972 on the same subject.

Additional information

Authors: DE BIEVRE P, JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);WOLTERS W H, JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);LYCKE W, JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);BEYRICH W, JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);GOLLY W, JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);SPANNAGEL G JRC GEEL ESTAB. (BELGIUM), JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY), JRC GEEL ESTAB. (BELGIUM);KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH (GERMANY)
Bibliographic Reference: ESARDA 7TH ANNUAL 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 31979 ORA
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