Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/04

  • 研究者氏名
    Researcher Name

    百生敦 Atsushi MOMOSE
    教授 Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    計測研究部門 量子ビーム計測研究分野
    Division of Measurements, Quantum Beam Measurements
  • 研究キーワード
    Research Keywords

    X-ray optics
    X-ray imaging
    Phase contrast
Research Subject
Development of X-ray phase imaging

研究の背景 Background


The techniques for utilizing X-ray phase information or coherence have been developed remarkably, and the field of X-ray imaging is progressing well. Whereas conventional X-ray imaging methods relying on absorption contrast are widely used in medicine and non-destructive testing, X-ray phase-contrast method allows us to observe materials consisting of low-Z elements, such as polymers and biological soft tissues, which cannot be depicted with the conventional methods.

研究の目標 Outcome


X-ray optics is extensively studied to develop advanced imaging methods, such as X-ray microscopy or tomography utilizing phase information. Phase imaging with other quantum beams, such as neutron beam, is also studied. Through these activities, contribution to the modern society with increasing attention to health, safe, and secure by developing apparatus for medical diagnosis and non-destructive testing in collaboration with industry.

研究図Research Figure

Fig.1. Renal microstructures in hamster kidney observed by X-ray phase CT without contrast media.

Fig.2. Polystyrene/PMMA blend scanned with laboratory-based X-ray phase. Blend pieces prepared with different phase-separation time were assembled together for observation.

Fig.3. AA alkaline battery scanned with laboratory-based high-energy X-ray phase CT (by scattering signal). Left: fresh, right: discharged.

文献 / Publications

Nat. Med. 2, 473 (1996). Jpn. J. Appl. Phys. 42, L866 (2003). Kid. Int. 75, 945 (2009). Opt. Express 19, 8423 (2011). Phil. Trans. R. Soc. A, 372, 2013023 (2014). Bone 84, 279 (2016). Macromolecules 38, 7197 (2005). Optica 6, 1012 (2019). Sci. Rep. 7, 6711 (2017). Proc. SPIE 11840, 118400K (2021).