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An integrated approach between neutron diffraction and elemental imaging through neutron resonance transmission imaging: preliminary results on Chinese bimetallic sword fragments

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Abstract

In this work, neutron diffraction (ND) and neutron resonance transmission imaging (NRTI) are applied for the material characterization of composite artefacts, two bimetallic sword fragments from ancient China, in order to highlight the presence and distribution of phases and elements in the objects. The investigation was carried out at the INES beamline, a time-of-flight powder diffractometer operating at the ISIS neutron and muon source in the UK. ND was applied to identify and quantify crystalline phases, while NRTI, by means of a position sensitive n-GEM based neutron detector, provided us with the distribution of different elements in the objects. NRTI demonstrates the possibility of enhancing several elements (e.g. Fe, Cu, Ag, Sn, Sb, As, Co, Cr, In, and Mn) in neutron transmission images, achieving a spatial resolution of about 1.6 mm. Elemental mapping was performed by selecting some of the most intense neutron resonances (up to several keV) in the absorption spectra.

Graphical abstract: An integrated approach between neutron diffraction and elemental imaging through neutron resonance transmission imaging: preliminary results on Chinese bimetallic sword fragments

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Publication details

The article was received on 02 Sep 2019, accepted on 14 Oct 2019 and first published on 14 Oct 2019


Article type: Paper
DOI: 10.1039/C9JA00300B
J. Anal. At. Spectrom., 2019, Advance Article

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    An integrated approach between neutron diffraction and elemental imaging through neutron resonance transmission imaging: preliminary results on Chinese bimetallic sword fragments

    A. Fedrigo, D. Raspino, F. Grazzi and A. Scherillo, J. Anal. At. Spectrom., 2019, Advance Article , DOI: 10.1039/C9JA00300B

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