GEOMETRICALLY FLEXIBLE AND EFFICIENT NUMERICAL SOLUTION TECHNIQUE FOR BRAGG EDGE NEUTRON TRANSMISSION STRAIN TOMOGRAPHY

[...]of the backscattering, the Bragg-edges do not add the scattering angle to the d-spacing error, making this technique an essential alternative for neutron applications requiring a high-resolution d distance, such as strain measurements. Besides that, a strain is a tensor of the second order, whi...

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Bibliographic Details
Published inBulletin of the Australian Mathematical Society Vol. 104; no. 3; pp. 522 - 524
Main Author AGGARWAL, RIYA
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.12.2021
Subjects
Abstracts of Australasian PhD Theses
Algorithms
Backscattering
Finite element analysis
Finite element method
High resolution
Mathematical analysis
Meshless methods
Neutrons
Numerical analysis
Numerical methods
Phase transitions
Scattering angle
Tensors
Tomography
78A45
Bragg-edge transmission
meshless method
longitudinal ray transform
finite element method
neutron transmission tomography
78M10
elastic strain
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Summary:[...]of the backscattering, the Bragg-edges do not add the scattering angle to the d-spacing error, making this technique an essential alternative for neutron applications requiring a high-resolution d distance, such as strain measurements. Besides that, a strain is a tensor of the second order, while density is a scalar quantity, which makes strain tomography considerably more complicated. [...]numerical methods such as finite element and meshless methods are able to achieve high-resolution strain reconstruction.
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content type line 14
ISSN:0004-9727
1755-1633
DOI:10.1017/S0004972721000629