4D wavelength-resolved neutron tomography of a reference sample made of several polycrystalline materials, namely nickel, iron, titanium, lead, copper and aluminium, is presented. Data were acquired using the time-of-flight transmission imaging method at the IMAT beamline at the ISIS pulsed neutron source. Wavelength-dispersive tomography reconstruction was computed using filtered back projection, allowing wavelength-resolved total-cross-section retrieval for each voxel in the reconstructed volume of the sample. The need for background correction to enable quantitative results and analysis is discussed, and the achieved 3D spatial resolution with respect to the obtained Bragg-edge pattern quality is investigated.

Carminati, C., Strobl, M., Minniti, T., Boillat, P., Hovind, J., Morgano, M., et al. (2020). Bragg-edge attenuation spectra at voxel level from 4D wavelength-resolved neutron tomography. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 53(1), 188-196 [10.1107/s1600576720000151].

Bragg-edge attenuation spectra at voxel level from 4D wavelength-resolved neutron tomography

Minniti, Triestino;
2020-01-01

Abstract

4D wavelength-resolved neutron tomography of a reference sample made of several polycrystalline materials, namely nickel, iron, titanium, lead, copper and aluminium, is presented. Data were acquired using the time-of-flight transmission imaging method at the IMAT beamline at the ISIS pulsed neutron source. Wavelength-dispersive tomography reconstruction was computed using filtered back projection, allowing wavelength-resolved total-cross-section retrieval for each voxel in the reconstructed volume of the sample. The need for background correction to enable quantitative results and analysis is discussed, and the achieved 3D spatial resolution with respect to the obtained Bragg-edge pattern quality is investigated.
2020
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/07
Settore PHYS-06/A - Fisica per le scienze della vita, l'ambiente e i beni culturali
English
Con Impact Factor ISI
Bragg-edge imaging
neutron imaging
wavelength-resolved neutron tomography
Carminati, C., Strobl, M., Minniti, T., Boillat, P., Hovind, J., Morgano, M., et al. (2020). Bragg-edge attenuation spectra at voxel level from 4D wavelength-resolved neutron tomography. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 53(1), 188-196 [10.1107/s1600576720000151].
Carminati, C; Strobl, M; Minniti, T; Boillat, P; Hovind, J; Morgano, M; Holm Rod, T; Polatidis, E; Valsecchi, J; Mannes, D; Kockelmann, W; Kaestner, A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/394592
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