Charaterization of highly enriched uranium in a nuclear forensics exercise
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2017
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60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS
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This paper presents the characterization of two metal samples of highly enriched
uranium as a contribution of Poços de Caldas Laboratory, LAPOC, a branch of
Brazilian National Commission for Nuclear Energy, CNEN, to the Round Robin 3,
RR3, coordinated by the Nuclear Forensics International Technical Working Group.
A scenario was constructed in which two separate seizures of nuclear material occurred
and forensics analysis was requested to help discern whether these incidents
were related and whether these incidents exceeded country statutes. Laboratories
were instructed to submit assessment reports in 24 hours, one week, and two month
timeframes. Besides preliminary evaluations for categorization of the material, our
laboratory applied high resolution gamma spectrometry, optical emission spectrometry
by inductively coupled plasma, and potentiometric titration for quantitative characterization
of the samples. Concerning our technical reports answers for the three
main forensics questions formulated by RR3, one of them was inconclusive, considering
that LAPOC did not yet have all essential equipment for a fully satisfactory
forensics nuclear analysis.
Como referenciar
SARKIS, J.E.S.; NASCIMENTO, M.R.L.; QUINELATO, A.L.; SILVA, N.C. Charaterization of highly enriched uranium in a nuclear forensics exercise. In: 60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS, November 28 - December 01, 2017, São Paulo, SP. Abstract... São Paulo, SP: Instituto de Pesquisas Energéticas e Nucleares, 2017. p. 71-71. Disponível em: http://repositorio.ipen.br/handle/123456789/28771. Acesso em: 30 Dec 2025.
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