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Abstract

Solid spikes for isotope dilution mass spectrometry (IDMS) analysis of reprocessing input solution offer a simple and reliable procedure for the assay of uranium and plutonium. With the solid spikes the use of the exotic isotopes 233U and 242Pu or 244Pu can be avoided, since 235U and 239Pu are used as spike isotopes. The dried spikes consist of either 50 or 100 mg of material (U + Pu), thus the undiluted input solution can be spiked directly, without any quantitative dissolution step prior to spiking. The large size of the samples and spikes also means that they are relatively insensitive to contaminations and hence spiking can be performed in a hot cell. The report describes the preparation, certification and verification of the large size dried spikes IRMM-1027a and 1027b.

Additional information

Authors: VERBRUGGEN A, JRC Geel (BE);HENDRICKX F, JRC Geel (BE);ALONSO A, JRC Geel (BE);MAYER K, JRC Geel (BE);DE BIEVRE P, JRC Geel (BE)
Bibliographic Reference: Paper presented: 15th ESARDA Symposium on Safeguards and Nuclear Material Management, Roma (IT), May 11-13, 1993
Availability: Available from (1) as Paper EN 37257 ORA
Record Number: 199410222 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en