Quality control of safeguards analytical measurements : A study of error sources
An improved quality control system is under development for the various methods employed for safeguards analysis. The ultimate goal is to assure an accuracy of 0.1% for the most important analytical methods to be used in future on-site laboratories. As an example, the isotope dilution mass spectrometric analysis, which consists of many steps, is dealt with in detail. Experiments were designed as statistical hierarchical classifications for treatment in an analysis of variance. The scheme, giving results for both concentration and isotopic composition of U and Pu, includes the dilution error in a hot cell, the remote weighing errors (aliquot and spike), the error in the redox chemistry and the mass spectrometric measurement error. Instrumental parameters, such as the level of the isotopic ratios or amount of sample loaded on the filament, were also considered.
Bibliographic Reference: Paper presented: 32nd Annual Meeting of Nuclear Materials Management, New Orleans (US), July 28-31, 1991
Availability: Available from (1) as Paper EN 36011 ORA
Record Number: 199111338 / Last updated on: 1994-12-02
Original language: en
Available languages: en