利用SPring-8埃紧凑型自由电子激光的硬X射线自由电子激光进行干涉相衬X射线成像的可行性研究。
Feasibility study of interferometric phase-contrast X-ray imaging using the hard-X-ray free-electron laser of the SPring-8 Angstrom Compact Free-Electron Laser.
作者信息
Yoneyama Akio, Baba Rika, Takamatsu Daiko, Kamezawa Chika, Inoue Ichiro, Osaka Taito, Owada Shigeki, Yabashi Makina
机构信息
Research and Development Group, Hitachi Ltd., 1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601, Japan.
Department of Materials Structure Science, The Graduate University for Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.
出版信息
J Synchrotron Radiat. 2020 Sep 1;27(Pt 5):1358-1361. doi: 10.1107/S1600577520007778. Epub 2020 Jul 10.
Aiming for the fine observation of fast physical phenomena such as phonon propagation and laser ablation, phase-contrast X-ray imaging combined with a crystal X-ray interferometer and the X-ray free-electron laser (XFEL) of the SPring-8 Angstrom Compact Free-Electron Laser has been developed. An interference pattern with 70% visibility was obtained by single-shot exposure with a 15 keV monochromated XFEL. In addition, a phase map of an acrylic wedge was successfully obtained using the fringe scanning method.
为了精细观察诸如声子传播和激光烧蚀等快速物理现象，已经开发出了结合晶体X射线干涉仪和SPring-8埃紧凑型自由电子激光的X射线自由电子激光（XFEL）的相衬X射线成像技术。利用15 keV单色XFEL单次曝光获得了可见度为70%的干涉图样。此外，使用条纹扫描法成功获得了丙烯酸楔块的相位图。
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