Title: Neutron resonance densitometry for particle-like debris of melted fuel
Authors: HARADA H.KITATANI F.KOIZUMI M.TAKAMINE J.KURETA M.TSUTIYA H.IIMURA H.SEYA M.BECKER BJÖRNKOPECKY StefanSCHILLEBEECKX Peter
Citation: NUCLEAR DATA SHEETS vol. 118 p. 502-504
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE
Publication Year: 2014
JRC N°: JRC91632
ISSN: 0090-3752
URI: http://www.sciencedirect.com/science/article/pii/S0090375214001483
http://dx.doi.org/10.1016/j.nds.2014.04.118
http://publications.jrc.ec.europa.eu/repository/handle/JRC91632
DOI: 10.1016/j.nds.2014.04.118
Type: Articles in periodicals and books
Abstract: Neutron Resonance Densitometry (NRD) is proposed for the quantification of nuclear materials in particle-like debris of melted fuel from the reactors of the Fukushima Daiichi nuclear power plant. The method is based on a combination of neutron resonance transmission analysis (NRTA) and neutron resonance capture analysis (NRCA). It uses the neutron time-of-flight (TOF) technique with a pulsed white neutron source and a neutron flight path as short as 5 m. The spectrometer for NRCA is made of LaBr3(Ce) detectors. The achievable uncertainty due to only counting statistics is less than 1 % to determine Pu and U isotopes.
JRC Directorate:Health, Consumers and Reference Materials

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