Non-destructive analysis of objects using neutron resonance capture |
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Authors: | H Postma P Schillebeeckx |
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Institution: | (1) IRI, University of Technology Delft, Mekelweg 15, 2629 CJ Delft, The Netherlands;(2) Joint Research Centre IRMM, Geel, Retieseweg, B-2440, Belgium |
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Abstract: | Summary In this paper we discuss an analytical method, neutron-resonance-capture-analysis (NRCA), which uses the energies of resonances to recognize elements. These resonances are observed by the time-of-flight technique using a pulsed neutron beam at the GELINA facility in Geel (Belgium). The prompt γ-radiation, emitted after a neutron is captured, is used to signal that capture occurred. Areas of resonance peaks are used to evaluate the elemental composition of objects and materials quantitatively. A comparison of NRCA and PGAA is made and elucidated with experimental data resulting from measurements of bronze artefacts at GELINA and at the Budapest Neutron Centre. |
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