15. August 2017

A. Momose (Tohoku, Japan): Grating-based X-ray phase imaging for biomedical applications


Referent: Prof. Atsushi Momose (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan)

Thema: Grating-based X-ray phase imaging for biomedical applications

Termin: 15.08.2017, 12:30–13:30 Uhr
Ort: Konferenzraum 1 der Klinik für Radiologie und Nuklearmedizin, Petersgraben 4, 4031 Basel (Klinikum 2, 1. Untergeschoss)

Ab ca. 12 Uhr wird im Vorraum der Konferenzräume die Möglichkeit einer kleinen Verpflegung geboten.

Abstract: While conventional X-ray imaging (radiography) relies on X-ray absorption to generate image contrast, X-ray phase-contrast techniques have been attracting attention since weakly absorbing objects, such as biological soft tissues, can be visualized. X-ray phase imaging generates quantitative images mapping absorption, refraction, and scattering by an object through digital acquisition of phase-contrast X-ray pictures by a specific procedure. Three-dimensional observation based on X-ray phase imaging is also attained (X-ray phase tomography). Among X-ray phase imaging methods, grating-based one has been extensively studied with not only synchrotron radiation but also conventional X-ray tubes. The combination with conventional X-ray tubes is noteworthy especially from an industrial point of view, and we have been developing apparatuses for applications of clinical and non-destructive testing purposes. Recently, we have also been developing nanoscopic X-ray phase imaging by combining a Fresnel zone plate and gratings.

Information about the speaker: Ambitious research activities of Prof. Dr. Atsushi Momose from Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan include developments of X-ray technology, in particular, of X-ray phase-contrast techniques. His remarkable contributions resulted in development of X-ray phase imaging methods based on phase measurement using X-ray interferometers. Special attention should be given to the fact that his ground-breaking research is oriented not only to fundamental X-ray science but also to technical developments for applications, particularly using synchrotron radiation. Currently, he has a high-ranking imaging project with medical partners toward the diagnosis of breast cancer by means of grating interferometry.