Neutron diffraction strain tomography: demonstration and proof-of-concept

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Date
2020-01-03
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Publisher
AIP Publishing LLC.
Abstract
Recently, a number of reconstruction algorithms have been presented for residual strain tomography from Bragg-edge neutron transmission measurements. In this paper, we examine whether strain tomography can also be achieved using diffraction instruments. We outline the proposed method and develop a suitable reconstruction algorithm. This technique is demonstrated in simulation, and a proof-of-concept experiment is carried out, where the strain field in an axisymmetric sample is reconstructed and validated using conventional diffraction strain scans. © 2020 AIP Publishing LLC.
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Keywords
Neutron diffraction, Strains, Tomography, Bragg reflection, Algorithms, Simulation
Citation
Gregg, A. W. T., Hendriks, J. N., Wensrich, C. M., Luzin, V., & Wills, A. (2020). Neutron diffraction strain tomography: demonstration and proof-of-concept. Review of Scientific Instruments, 91(1), 015105. doi:10.1063/1.5120422
URI
https://doi.org/10.1063/1.5120422
 http://apo.ansto.gov.au/dspace/handle/10238/9666
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