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|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 BJÖRN; KOPECKY Stefan; SCHILLEBEECKX Peter|
|Citation:||NUCLEAR DATA SHEETS vol. 118 p. 502-504|
|Publisher:||ACADEMIC PRESS INC ELSEVIER SCIENCE|
|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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