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Open AccessArticle

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

1
ECAP, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
2
Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
3
Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
4
DESY, Notkestraße 85, 22607 Hamburg, Germany
5
GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
J. Imaging 2020, 6(7), 63; https://doi.org/10.3390/jimaging6070063
Received: 13 May 2020 / Revised: 13 June 2020 / Accepted: 1 July 2020 / Published: 3 July 2020
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 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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MDPI and ACS 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. 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; Weule, Mareike; Cipiccia, Silvia; Flenner, Silja; Hagemann, Johannes; Ludwig, Veronika; Michel, Thilo; Neumayer, Paul; Schuster, Max; Wolf, Andreas; Anton, Gisela; Funk, Stefan; Akstaller, Bernhard. 2020. "Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging" J. Imaging 6, no. 7: 63. https://doi.org/10.3390/jimaging6070063

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