Quantitative electron density characterization of soft tissue substitute plastic materials using grating-based x-ray phase-contrast imaging

Sarapata A, Chabior M, Cozzini C, Sperl JI, Beque D, Langner O, Coman J, Zanette I, Ruiz-Yaniz M, Pfeiffer F (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Review of Scientific Instruments AIP Publishing

Book Volume: 85

Article Number: 103708

Journal Issue: 10

DOI: 10.1063/1.4898052

Abstract

Many scientific research areas rely on accurate electron density characterization of various materials. For instance in X-ray optics and radiation therapy, there is a need for a fast and reliable technique to quantitatively characterize samples for electron density. We present how a precise measurement of electron density can be performed using an X-ray phase-contrast grating interferometer in a radiographic mode of a homogenous sample in a controlled geometry. A batch of various plastic materials was characterized quantitatively and compared with calculated results. We found that the measured electron densities closely match theoretical values. The technique yields comparable results between a monochromatic and a polychromatic X-ray source. Measured electron densities can be further used to design dedicated X-ray phase contrast phantoms and the additional information on small angle scattering should be taken into account in order to exclude unsuitable materials.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) General Electric Global Research US United States (USA) (US) QRM Quality Assurance in Radiology and Medicine GmbH DE Germany (DE)

How to cite

APA:

Sarapata, A., Chabior, M., Cozzini, C., Sperl, J.I., Beque, D., Langner, O.,... Pfeiffer, F. (2014). Quantitative electron density characterization of soft tissue substitute plastic materials using grating-based x-ray phase-contrast imaging. Review of Scientific Instruments, 85(10). https://doi.org/10.1063/1.4898052

MLA:

Sarapata, A., et al. "Quantitative electron density characterization of soft tissue substitute plastic materials using grating-based x-ray phase-contrast imaging." Review of Scientific Instruments 85.10 (2014).

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