Four-dimensional pink-beam x-ray phase tomography for studying laser processing

Atsushi Momose; Karol Vegso; Hidekazu Takano; Yanlin Wu; Koh Hashimoto; Masato Hoshino

doi:10.1117/12.2528669

17 September 2019 Four-dimensional pink-beam x-ray phase tomography for studying laser processing

Atsushi Momose, Karol Vegso, Hidekazu Takano, Yanlin Wu, Koh Hashimoto, Masato Hoshino

Proceedings Volume 11113, Developments in X-Ray Tomography XII; 111130I (2019) https://doi.org/10.1117/12.2528669
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

X-ray phase tomography by Talbot interferometry functions with X-rays of a broad energy band, and a pink- beam extracted by a multilayer mirror from white synchrotron radiation is used for four-dimensional X-ray phase tomography, which was developed at BL28B2, SPring-8, Japan. Polymer samples under infrared laser irradiation were observed as model experiments of laser processing. In this paper, laser ablation for a carbon-fiber reinforced polymer (CFRP) sample is reported. Thanks to the fact that the fibrous structure generates visibility (or dark-field) contrast, four-dimensional tomogram from the visibility reduction is presented. A technical effort to improve the temporal resolution from 1 s to 160 ms is also described.

Conference Presentation

Citation Download Citation

Atsushi Momose, Karol Vegso, Hidekazu Takano, Yanlin Wu, Koh Hashimoto, and Masato Hoshino "Four-dimensional pink-beam x-ray phase tomography for studying laser processing", Proc. SPIE 11113, Developments in X-Ray Tomography XII, 111130I (17 September 2019); https://doi.org/10.1117/12.2528669

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