Coherence evaluation and first demonstration of multi-contrast X-ray computed tomography on NanoTerasu BL09W with an X-ray Talbot interferometer

Journal of Synchrotron Radiation 2026 Open access

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Authors: Ryosuke Ueda, Xiaoyu Liang, Chika Kamezawa, Hiroki Sumiishi, Yui Bishago, Takeyasu Nishio, Junya Yoshida, Masaharu Daimon, Shozo Hiramoto, Wolfgang Voegeli, Tetsuroh Shirasawa, Patrik Vagovič
+3 more Hiroyuki Yamane, Tetsuya Nakamura, Wataru Yashiro
DOI: 10.1107/s1600577526000512
Cited by: 1
References: 57

Abstract

We report on the coherence evaluation of the beamline BL09W at NanoTerasu (Tohoku University, Japan) and demonstrate X-ray multi-contrast imaging using an X-ray Talbot interferometer. Fringe visibility was measured in both the horizontal and vertical directions and analyzed to estimate the effective source size of the X-ray beam. The estimated source size in the horizontal direction was consistent with the design specification, confirming the validity of the measurements. In the vertical direction, the high visibility, exceeding 70%, indicates the remarkably high spatial coherence of the source. Multi-contrast computed tomography was successfully performed, simultaneously reconstructing absorption, phase and small-angle scattering contrasts. These results establish BL09W as a versatile beamline for coherence-based X-ray imaging.

Fields of Study & Subjects

Advanced X-ray Imaging Techniques Crystallography and Radiation Phenomena Laser-Plasma Interactions and Diagnostics

Publication details

Journal / source
Journal of Synchrotron Radiation
Publisher
International Union of Crystallography (IUCr)
Volume
33
Issue
2
Pages
481–488
Publication date
9 February 2026
Language
EN