NDLI: Results of the REIMEP-17 interlaboratory comparison for the measurement of the U and Pu amount content and isotope amount ratios in the synthetic dissolved spent nuclear fuel solution

Content Provider	Springer Nature Link
Author	Jakopič, Rožle Aregbe, Yetunde Buják, Renáta Richter, Stephan Buda, Razvan Zuleger, Evelyn
Copyright Year	2015
Abstract	Reliable measurements are needed for the verification measures of States’ declarations of their nuclear activities in line with international agreements and the EURATOM Treaty. Laboratories carrying out measurements of nuclear material need to follow stringent quality control concepts and are required to demonstrate their measurement capabilities on a regular and timely basis to legal and safeguards authorities. This includes participation in interlaboratory comparisons (ILCs). In the frame of the Regular European Interlaboratory Measurement Evaluation Programme (REIMEP), a new ILC (REIMEP-17) was jointly organized by the EC—Joint Research Centre—Institute for Reference Materials and Measurements (JRC-IRMM) and EC—Joint Research Centre—Institute for Transuranium Elements (JRC-ITU) for EURATOM and IAEA safeguards laboratories, nuclear plant operators and nuclear material laboratories. The focus in REIMEP-17 was on measurements of the uranium and plutonium amount contents and isotope amount ratios in synthetic dissolved spent nuclear fuel solutions. Participants received two test samples, REIMEP-17A and REIMEP-17B, with different uranium and plutonium amount contents. Laboratories were requested to report the results with associated uncertainties applying their standard measurement procedures and had the possibility to benchmark those results against the independent assigned (reference) values and the ones listed in the International Target Values for Measurement Uncertainties in Safeguarding Nuclear Materials (ITV2010). It can be concluded that the participants in REIMEP-17 performed well for the measurements of uranium and plutonium amount content in compliance with the respective ITV2010 values. In particular, the measurement performance for the isotope amount ratios was very satisfactory for both REIMEP-17 test samples. This confirms the measurement capabilities of laboratories in the field of nuclear material analysis and demonstrates that the stringent ITV2010 values are achievable targets under state-of-practice conditions. On the other hand, the spread of results for the minor uranium isotope amount ratios was larger. Moreover, for some of the measurands, differences in the measurement uncertainty estimations provided by laboratories were observed even when using the same instrumental technique. A summary of the participant results is presented and discussed in this paper.
Starting Page	421
Ending Page	429
Page Count	9
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	20
Issue Number	5
e-ISSN	14320517
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-07-08
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	REIMEP-17 Quality control Nuclear measurements Interlaboratory comparison ITV2010 Analytical Chemistry Food Science Biochemistry Commercial Law Ecotoxicology Marketing
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

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