Applications of TOF neutron diffraction in archaeometry |
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Authors: | W Kockelmann S Siano L Bartoli D Visser P Hallebeek R Traum R Linke M Schreiner A Kirfel |
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Institution: | 1. ISIS Facility, Rutherford Appleton Laboratory, Chilton, OX11 0QX, United Kingdom 2. Istituto di Fisica Applicata – CNR, 50019, Sesto Fiorentino, Italy 3. The Netherlands Organisation for Scientific Research (NWO), 2593 CE, Den Haag, The Netherlands 4. Netherlands Institute for Cultural Heritage (ICN), 1070 KA, Amsterdam, The Netherlands 5. Münzkabinett, Kunsthistorisches Museum Wien, 1010, Vienna, Austria 6. Institut für Wissenschaften und Technologien in der Kunst, Akademie der bildenden Künste, 1010, Vienna, Austria 7. Mineralogisch-Petrologisches Institut, Universit?t Bonn, 53115, Bonn, Germany
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Abstract: | Neutron radiation meets the demand for a versatile diagnostic probe for collecting information from the interior of large,
undisturbed museum objects or archaeological findings. Neutrons penetrate through coatings and corrosion layers deep into
centimetre-thick materials, a property that makes them ideal for non-destructive examination of objects for which sampling
is impractical or unacceptable. A particular attraction of neutron techniques for archaeologists and conservation scientists
is the prospect of locating hidden materials and structures inside objects. Time-of-flight (TOF) neutron diffraction allows
for the examination of mineral and metal phase contents, crystal structures, grain orientations, and microstructures as well
as micro- and macro strains. A promising application is texture analysis which may provide clues to the deformation history
of the material, and hence to specific working processes. Here we report on instructive examples of TOF neutron diffraction,
including phase analyses of medieval Dutch tin-lead spoons, texture analyses of bronze specimens as well as of 16th-century
silver coins.
PACS 61.12.-q; 81.05.Bx; 81.70.Jd |
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