Dynamical X-ray phase imaging of polymer materials under laser engraving
| Autor: | Ryosuke Ueda, Kenji Kimura, Hidekazu Takano, Masato Hoshino, Koh Hashimoto, Atsushi Momose |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Japanese Journal of Applied Physics. 62:016501 |
| ISSN: | 1347-4065 0021-4922 |
| Popis: | X-ray phase imaging provides higher sensitivity to polymer materials made of light elements than the sensitivity provided by conventional X-ray transmission imaging that relies on absorption contrast. High-speed X-ray phase imaging has recently been studied using pink-beam synchrotron radiation and a Talbot interferometer to enable dynamic observation. In this study, we adopted high-speed X-ray phase imaging for the inner visualization of polymer materials under laser engraving. A sequence of phase-stepping-based phase imaging with a temporal resolution of 5 ms was established by synchronizing an X-ray detector with the linear motions of a grating and a sample. The laser and X-ray paths were aligned orthogonally, and the engraving region was observed from the material surface in the depth direction, in which ablation followed by bubble formation with a certain time delay was demonstrated. |
| Databáze: | OpenAIRE |
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