Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging

For imaging events of extremely short duration, like shock waves or explosions, it is necessary to be able to image the object with a single-shot exposure. A suitable setup is given by a laser-induced X-ray source such as the one that can be found at GSI (Helmholtzzentrum für Schwerionenforschung GmbH) in Darmstadt (Society for Heavy Ion Research), Germany. There, it is possible to direct a pulse from the high-energy laser Petawatt High Energy Laser for Heavy Ion eXperiments (PHELIX) on a tungsten wire to generate a picosecond polychromatic X-ray pulse, called backlighter. For grating-based single-shot phase-contrast imaging of shock waves or exploding wires, it is important to know the weighted mean energy of the X-ray spectrum for choosing a suitable setup. In propagation-based phase-contrast imaging the knowledge of the weighted mean energy is necessary to be able to reconstruct quantitative phase images of unknown objects. Hence, we developed a method to evaluate the weighted mean energy of the X-ray backlighter spectrum using propagation-based phase-contrast images. In a first step wave-field simulations are performed to verify the results. Furthermore, our evaluation is cross-checked with monochromatic synchrotron measurements with known energy at Diamond Light Source (DLS, Didcot, UK) for proof of concepts. View Full-Text

Keywords: X-ray backlighter spectrum; propagation-based phase-contrast; single-shot X-ray phase-contrast imaging; models and simulations; X-ray generators and sources

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Seifert, M.; Weule, M.; Cipiccia, S.; Flenner, S.; Hagemann, J.; Ludwig, V.; Michel, T.; Neumayer, P.; Schuster, M.; Wolf, A.; Anton, G.; Funk, S.; Akstaller, B. Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging. J. Imaging 2020, 6, 63. https://doi.org/10.3390/jimaging6070063

AMA Style

Seifert M, Weule M, Cipiccia S, Flenner S, Hagemann J, Ludwig V, Michel T, Neumayer P, Schuster M, Wolf A, Anton G, Funk S, Akstaller B. Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging. Journal of Imaging. 2020; 6(7):63. https://doi.org/10.3390/jimaging6070063

Chicago/Turabian Style

Seifert, Maria, Mareike Weule, Silvia Cipiccia, Silja Flenner, Johannes Hagemann, Veronika Ludwig, Thilo Michel, Paul Neumayer, Max Schuster, Andreas Wolf, Gisela Anton, Stefan Funk, and Bernhard Akstaller. 2020. "Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging" Journal of Imaging 6, no. 7: 63. https://doi.org/10.3390/jimaging6070063

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Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging

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