Thilo Michel

Probing ultrafast foam homogenization with grating-based X-ray dark-field imaging

L. Wegert, Constantin Rauch, Stephan Schreiner, Markus Schneider et autres

Microstructured foams are emerging as a promising class of targets, with applications ranging from laser-driven particle acceleration to inertial confinement fusion. To unlock their full potential, a deeper understanding of their properties, especially the changes and behavior of the microstructure under extreme …

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Active Eye Lens Dosimetry With Dosepix: Influence of Measurement Position and Lead Glass Shielding

Leonie Ullmann, F. A. Beisser, R. Behrens, S. Funk et autres

In this work, the effect of the measurement position on measurements of Hp(3) of a new active eye lens dosemeter prototype based on the Dosepix detector is examined. A comparison between measuring directly in front of the eye and measuring at the …

de (code pays fourni par la source)

Enhanced grating characterization method for absorbing x-ray gratings by bidirectional angular x-ray transmission

Constantin Rauch, Stephan Schreiner, Pascal Meyer, Veronika Ludwig et autres

Abstract High-quality x-ray absorption gratings are essential for grating-based x-ray phase-contrast imaging. Bidirectional angular x-ray transmission (AXT) measurements, as proposed in this work, allow for large-area and nondestructive characterization of these gratings. A custom setup consisting of two rotational axes is used …

de (code pays fourni par la source)

Zerstörungsfreie Prüfung mit Röntgen-Phasenkontrast: Materialanalyse mittels Scannertechnologie

Markus Schneider, Veronika Ludwig, Constantin Rauch, Stephan Schreiner et autres

Die Röntgen-Phasenkontrast-Bildgebung bietet vielversprechende Möglichkeiten für die zerstörungsfreie Materialprüfung. Diese Methode ermöglicht neben der Erkennung von Defekten und Unregelmäßigkeiten auch eine detaillierte Analyse der inneren Strukturen von Bauteilen. Der vorgestellte Phasenkontrast-Scanner kombiniert zwei Interferometer, wodurch eine quantitative Untersuchung von Strukturgrößen in einem …

de (code pays fourni par la source)

Active Eye Lens Dosimetry With Dosepix: Influence of Measurement Position and Lead Glass Shielding

Leonie Ullmann, F. A. Beisser, R. Behrens, S. Funk et autres

In this work, the effect of the measurement position on measurements of $H_\text{p}(3)$ of a new active eye lens dosemeter prototype based on the Dosepix detector is examined. A comparison between measuring directly in front of the eye and measuring at the …

Future Circular Collider Feasibility Study Report: Volume 2 Accelerators, Technical Infrastructure and Safety

M. Benedikt, F. Zimmermann, B. Auchmann, Wolfgang Bartmann et autres

gb, us (code pays fourni par la source)

Future Circular Collider Feasibility Study Report Volume 3: Civil Engineering, Implementation and Sustainability

M. Benedikt, F. Zimmermann, B. Auchmann, Wolfgang Bartmann et autres

Volume 3 of the FCC Feasibility Report presents studies related to civil engineering, the development of a project implementation scenario, and environmental and sustainability aspects. The report details the iterative improvements made to the civil engineering concepts since 2018, taking into account …

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Demonstrating grating-based phase-contrast imaging of laser-driven shock waves

L. Wegert, Stephan Schreiner, Constantin Rauch, B. Albertazzi et autres

Single-shot X-ray phase-contrast imaging is used to take high-resolution images of laser-driven strong shock waves. Employing a two-grating Talbot interferometer, we successfully acquire standard absorption, differential phase-contrast, and dark-field images of the shocked target. Good agreement is demonstrated between experimental data and …

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ERRATUM: Design of a Talbot phase-contrast microscopy imaging system with a digital detector for laser-driven X-ray backlighter sources

Stephan Schreiner, Constantin Rauch, Bernhard Akstaller, Paulina Bleuel et autres

ERRATUM: Design of a Talbot phase-contrast microscopy imaging system with a digital detector for laser-driven X-ray backlighter sources, S. Schreiner, C. Rauch, B. Akstaller, P. Bleuel, E. Fröjdh, V. Ludwig, A.S. Martynenko, P. Meyer, A. Mozzanica, M. Müller, P. Neumayer, M. Schuster, …

de, ch (code pays fourni par la source)

Design of a Talbot phase-contrast microscopy imaging system with a digital detector for laser-driven X-ray backlighter sources

Stephan Schreiner, Constantin Rauch, Bernhard Akstaller, Paulina Bleuel et autres

Abstract Laser-driven shock waves in matter propagate with multiple kilometers per second and therefore require sources like a laser-driven backlighter, which emit the X-rays within picoseconds, to be able to capture sharp images. The small spatial extent of shocks in low-density materials …

de, ch (code pays fourni par la source)

Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector

F. A. Beisser, Dennis Haag, R. Ballabriga, R. Behrens et autres

Eye lens dosimetry has been an important field of research in the last decade. Dose measurements with a prototype of an active personal eye lens dosemeter based on the Dosepix detector are presented. The personal dose equivalent at 3 mm depth of …

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Publisher’s Note: “Electromagnetic pulse protective shielding for digital x-ray detectors” [Rev. Sci. Instrum. 94, 075106 (2023)]

Stephan Schreiner, Constantin Rauch, Bernhard Akstaller, Paulina Bleuel et autres

de, ch (code pays fourni par la source)