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Four-dimensional pink-beam x-ray phase tomography for studying laser processing
Author(s): Atsushi Momose; Karol Vegso; Hidekazu Takano; Yanlin Wu; Koh Hashimoto; Masato Hoshino
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Paper 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.

Paper Details

Date Published: 17 September 2019
PDF: 7 pages
Proc. SPIE 11113, Developments in X-Ray Tomography XII, 111130I (17 September 2019); doi: 10.1117/12.2528669
Show Author Affiliations
Atsushi Momose, Tohoku Univ. (Japan)
JASRI-SPring8 (Japan)
Karol Vegso, JASRI-SPring8 (Japan)
Hidekazu Takano, Tohoku Univ. (Japan)
Yanlin Wu, Tohoku Univ. (Japan)
Koh Hashimoto, Tohoku Univ. (Japan)
Masato Hoshino, JASRI-SPring8 (Japan)


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

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