Single absorption grating experiment on Korean ancient coins

Daeseung Kim; Junyoung Son; Matteo Busi; Jiazhou Shen; Markus Strobl; Seung Wook Lee

doi:10.1117/12.3027946

4 October 2024 Single absorption grating experiment on Korean ancient coins

Daeseung Kim, Junyoung Son, Matteo Busi, Jiazhou Shen, Markus Strobl, Seung Wook Lee

Author Affiliations +

Proceedings Volume 13152, Developments in X-Ray Tomography XV; 131521O (2024) https://doi.org/10.1117/12.3027946
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

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Abstract

When using neutron scattering information in a conventional grating interferometer, there were significant limitations due to the configuration of the interferometer system in obtaining a graph of the autocorrelation length that confirms the internal structure of the object. To solve this problem, a simulation was conducted to obtain the autocorrelation length over a wide range by changing the system configuration using a single absorption grating (inverse pattern simulation). Using spatial harmonic imaging techniques for ancient Korean coins, we obtained images of various modalities and revealed the differences between genuine and counterfeit coins. This experiment was conducted at PSI's BOA.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Daeseung Kim, Junyoung Son, Matteo Busi, Jiazhou Shen, Markus Strobl, and Seung Wook Lee "Single absorption grating experiment on Korean ancient coins", Proc. SPIE 13152, Developments in X-Ray Tomography XV, 131521O (4 October 2024); https://doi.org/10.1117/12.3027946

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