Speaker
Winfried Kockelmann
(ISIS Facility, Rutherford Appleton Laboratory)
Description
A new facility for neutron imaging and neutron diffraction called IMAT (Imaging and Materials Science) is currently being built at the pulsed neutron spallation source ISIS. IMAT will be available for a wide range of materials science applications with a main emphasis on engineering science. The special feature of IMAT will be energy-dependent imaging combined with neutron diffraction. The pulsed source operation facilitates a very flexible selection of neutron wavelength bands and a good energy resolution. Energy-selective imaging applications on IMAT will take advantage of the Bragg edge features in the total cross sections of many engineering materials. High-resolution Bragg edge mapping will allow visualizing structure properties in a material, for example strain and texture components, and show features which are invisible in conventional white-beam radiography data. An interesting aspect of IMAT will be tomography-driven diffraction for studying structurally and geometrically complex samples. The structures and materials inside engineering-sized samples can be more effectively analysed if the diffraction scans are guided by radiographic data. Vice versa, diffraction data may be indispensable for a physical interpretation of the wavelength-dependent attenuation features in radiography data.
Primary author
Winfried Kockelmann
(ISIS Facility, Rutherford Appleton Laboratory)
Co-authors
Anton Tremsin
(University of California at Berkeley)
Genoveva Burca
(The Open University)
Joe Kelleher
(ISIS Facility, Rutherford Appleton Laboratory)
Jon James
(The Open University)
Robert van Langh
(Delft University of Technology and Rijksmuseum Amsterdam)
Shu Yan Zhang
(ISIS Facility, Rutherford Appleton Laboratory)
