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Proceedings Paper

Analysis algorithms for simultaneous neutron and x-ray tomography datasets from the NIST NeXT system (Conference Presentation)
Author(s): Jacob M. LaManna; Daniel S. Hussey; Eli Baltic; David L. Jacobson

Paper Abstract

The NIST Neutron and X-ray Tomography (NeXT) system provides simultaneous, complementary, multimodal information for the characterization of materials. Neutrons and X-rays yield complementary, non-destructive views of a complex system due to the contrast differences that arise from the differences in interaction with matter for the two modes. The NeXT system orients a 90 keV microfocus X-ray tube orthogonally to the thermal neutron beam. This enables truly simultaneous capture of the two modalities, thus it is possible to perform multimodal tomography of dynamic or stochastic samples while penetrating through sample environment equipment such as pressure and flow vessels. NIST has developed and continues to update distributable software for reconstructing and analyzing the multimodal datasets. Tomographic reconstruction offers multiple CPU and GPU based algorithms for parallel and cone beam geometries. Additional analysis routines perform volume registration and region of interest segmentation of the bivariate histogram that leverages the contrast differences between the two modalities. This talk will give an overview of the NeXT system, the algorithm developments underway and provide multiple research applications using the system.

Paper Details

Date Published: 17 September 2019
Proc. SPIE 11113, Developments in X-Ray Tomography XII, 111131C (17 September 2019); doi: 10.1117/12.2529596
Show Author Affiliations
Jacob M. LaManna, National Institute of Standards and Technology (United States)
Daniel S. Hussey, National Institute of Standards and Technology (United States)
Eli Baltic, National Institute of Standards and Technology (United States)
David L. Jacobson, National Institute of Standards and Technology (United States)

Published in SPIE Proceedings Vol. 11113:
Developments in X-Ray Tomography XII
Bert Müller; Ge Wang, Editor(s)

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