Effect of object size, position, and detector pixel size on X-ray absorption, differential phase-contrast and dark-field signal

Wolf J, Chabior M, Sperl J, Malecki A, Beque D, Cozzini C, Pfeiffer F (2014)

Publication Type: Conference contribution

Publication year: 2014

Journal

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Publisher: SPIE

Book Volume: 9033

Conference Proceedings Title: Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Event location: USA

ISBN: 9780819498267

DOI: 10.1117/12.2043594

Abstract

X-ray phase-contrast and dark-field imaging are two new modalities that have great potential for applications in different fields like medical diagnostics or materials science. The use of grating interferometers allows the detection of both differential phase shift and dark-field signal together with the absorption signal in a single acquisition. We present wave-optical simulations to quantitatively analyze the response of a grating-based X-ray phase-contrast and dark-field imaging setup to variations of the sample relative to the system. Specifically, we investigated changes in the size and the position of the object. Furthermore, we examined the influence of different detector pixel sizes while sample and interferometer remained unchanged. The results of this study contribute to a better understanding of the signal formation and represent a step towards the full characterization of the response of grating interferometry setups to specific sample geometries. © 2014 SPIE.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) GE Deutschland Holding GmbH DE Germany (DE)

How to cite

APA:

Wolf, J., Chabior, M., Sperl, J., Malecki, A., Beque, D., Cozzini, C., & Pfeiffer, F. (2014). Effect of object size, position, and detector pixel size on X-ray absorption, differential phase-contrast and dark-field signal. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. USA: SPIE.

MLA:

Wolf, Johannes, et al. "Effect of object size, position, and detector pixel size on X-ray absorption, differential phase-contrast and dark-field signal." Proceedings of the Medical Imaging 2014: Physics of Medical Imaging, USA SPIE, 2014.

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