Experimental x-ray and fast neutron CT comparative analysis

M. G. Bisbee; A. J. Hardy; I. Oksuz; L. R. Cao; N. J. Cherepy; D. J. Schneberk; K. M. Champley; A. P. Townsend; K. J. Harke; J. V. Bernier; J. Tringe; S. Karimi

doi:10.1117/12.2635503

4 October 2022 Experimental x-ray and fast neutron CT comparative analysis

M. G. Bisbee, A. J. Hardy, I. Oksuz, L. R. Cao, N. J. Cherepy, D. J. Schneberk, K. M. Champley, A. P. Townsend, K. J. Harke, J. V. Bernier, J. Tringe, S. Karimi

Author Affiliations +

Proceedings Volume 12241, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIV; 122410E (2022) https://doi.org/10.1117/12.2635503
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

X-ray computed tomography (CT)systems can produce high resolution images, in which small (sub-millimeter) features can be detected. This requires the X-rays to sufficiently penetrate the object and interact strongly enough to produce measurable attenuation. Low atomic number (low Z), low density objects shielded by high atomic number (high Z) materials result in X-ray reconstructions that lack sufficient contrast to differentiate interior features from noise and reconstruction artifacts. Fast neutron CT offers complementary information to X-rays with superior penetration through high Z shielding and with less severe beam hardening artifacts. However, spatial resolution in X-ray imaging systems is generally superior to that of fast neutron imagers. Here, we quantitatively compare these two complementary modalities to demonstrate the ability to observe small feature locations within two multi-material objects. Quantitative measures include calculation of image gradient at material edges, contrast-to-noise ratio, and F1 score.

Conference Presentation

Citation Download Citation

M. G. Bisbee, A. J. Hardy, I. Oksuz, L. R. Cao, N. J. Cherepy, D. J. Schneberk, K. M. Champley, A. P. Townsend, K. J. Harke, J. V. Bernier, J. Tringe, and S. Karimi "Experimental x-ray and fast neutron CT comparative analysis", Proc. SPIE 12241, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIV, 122410E (4 October 2022); https://doi.org/10.1117/12.2635503

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