Results 61 to 70 of about 147,656 (247)

An approach for the measurement of the bulk temperature of single crystal diamond using an X-ray free electron laser

Scientific Reports, 2020
We present a method to determine the bulk temperature of a single crystal diamond sample at an X-Ray free electron laser using inelastic X-ray scattering.
A. Descamps, A. Descamps, B. Ofori-Okai, K. Appel, V. Cerantola, A. Comley, J. Eggert, L. Fletcher, D. Gericke, S. Göde, O. Humphries, O. Karnbach, A. Lazicki, R. Loetzsch, D. McGonegle, D. McGonegle, C. Palmer, C. Plueckthun, T. Preston, R. Redmer, D. Senesky, C. Strohm, I. Uschmann, T. G. White, L. Wollenweber, G. Monaco, J. Wark, J. Hastings, U. Zastrau, Gianluca Gregori, S. Glenzer, Emma E. McBride   +31 more
semanticscholar   +1 more source

Exploration of Pseudobinary Alloys (Al–Mn)‐(Co–Fe–Ni) to Design High‐Entropy and Compositionally Complex Alloys to Stabilize the τ Phase in Al–Mn‐Based Ferromagnetic Alloys

Advanced Engineering Materials, EarlyView.
This experimental study investigates the thermodynamic limits of the Al–Mn τ ferromagnetic phase within complex‐composition alloys (CCAs). Using nine rare‐earth‐free compositions, it explores a broad region of the pseudobinary AlMnCoFeNi system. The results reveal intricate links between composition, phase stability, and magnetic behavior, highlighting
Sacha Plagnol‐Chauzu, Laurent Peltier, Fodil Meraghni, Stéphane Delalande, Frédéric Mazaleyrat   +4 more
wiley   +1 more source

The DEPFET Sensor-Amplifier Structure: A Method to Beat 1/f Noise and Reach Sub-Electron Noise in Pixel Detectors

Sensors, 2016
Depleted field effect transistors (DEPFET) are used to achieve very low noise signal charge readout with sub-electron measurement precision. This is accomplished by repeatedly reading an identical charge, thereby suppressing not only the white serial ...
Gerhard Lutz, Matteo Porro, Stefan Aschauer, Stefan Wölfel, Lothar Strüder   +4 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Circular dichroism in multiphoton ionization of resonantly excited helium ions near channel closing

Scientific Reports
The circular dichroism (CD) of photoelectrons generated by near-infrared (NIR) laser pulses using multiphoton ionization of excited He+ ions in the 3p(m= +1) state is investigated.
René Wagner, Markus Ilchen, Nicolas Douguet, Philipp Schmidt, Niclas Wieland, Carlo Callegari, Zachary Delk, Alexander Demidovich, Giovanni De Ninno, Michele Di Fraia, Jiri Hofbrucker, Michele Manfredda, Valerija Music, Oksana Plekan, Kevin C. Prince, Daniel E. Rivas, Marco Zangrando, Alexei N. Grum-Grzhimailo, Klaus Bartschat, Michael Meyer   +19 more
doaj   +1 more source

Femtosecond X-ray cross-correlation analysis of disordered crystals forming in a supercooled atomic liquid

IUCrJ
We demonstrate an advanced scattering method for accessing the 3D reciprocal space of crystalline structures forming in a rapidly supercooled noble-gas liquid using a combination of femtosecond X-ray diffraction and X-ray cross-correlation analysis.
Johannes Möller, Michele Caresana, Alexander Schottelius, Felix Lehmkühler, Ulrike Boesenberg, Frédéric Caupin, Francesco Dallari, Tiberio A. Ezquerra, José M. Fernández, Luca Gelisio, Claudia Goy, Jörg Hallmann, Anton Kalinin, Chan Kim, Ruslan P. Kurta, Dmitry Lapkin, Francesco Mambretti, Markus Scholz, Roman Shayduk, René Steinbrügge, Florian Trinter, Ivan A. Vartanyants, Alexey Zozulya, Davide E. Galli, Gerhard Grübel, Anders Madsen, Robert E. Grisenti   +26 more
doaj   +1 more source

A split-beam probe-pump-probe scheme for femtosecond time resolved protein X-ray crystallography

Structural Dynamics, 2015
In order to exploit the femtosecond pulse duration of X-ray Free-Electron Lasers (XFEL) operating in the hard X-ray regime for ultrafast time-resolved protein crystallography experiments, critical parameters that determine the crystallographic signal-to ...
Jasper J. van Thor, Anders Madsen
doaj   +1 more source

Hard x-ray single-shot spectrometer at the European X-ray Free-Electron Laser.

Review of Scientific Instruments, 2020
The European X-ray Free-Electron Laser Facility in Germany delivers x-ray pulses with femtosecond pulse duration at a repetition rate of up to 4.5 MHz. The free-electron laser radiation is created by the self-amplified spontaneous emission (SASE) process,
N. Kujala, W. Freund, Jia Liu, A. Koch, T. Falk, M. Planas, F. Dietrich, J. Laksman, T. Maltezopoulos, J. Risch, F. Dall'antonia, J. Grünert   +11 more
semanticscholar   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Femtosecond all-optical synchronization of an X-ray free-electron laser

Nature Communications, 2015
Many advanced applications of X-ray free-electron lasers require pulse durations and time resolutions of only a few femtoseconds. To generate these pulses and to apply them in time-resolved experiments, synchronization techniques that can simultaneously ...
Sebastian A. Schulz, I. Grguraš, I. Grguraš, C. Behrens, H. Bromberger, J. T. Costello, M. Czwalinna, M. Felber, M. Hoffmann, M. Ilchen, Haiyun Liu, T. Mazza, Michael Meyer, S. Pfeiffer, P. Predki, S. Schefer, C. Schmidt, U. Wegner, H. Schlarb, A. Cavalieri, A. Cavalieri   +20 more
semanticscholar   +1 more source