Results 71 to 80 of about 208,703 (312)

Double-bunches for two-color soft X-ray free-electron laser at the MAX IV Laboratory [Elektronisk resurs]

, 2018
The ability to generate two-color free-electron laser (FEL) radiation enables a wider range of user experiments than just single-color FEL radiation. There are different schemes for generating the two colors, the original being to use a single bunch and ...
Kotur, Marija,, Lindau, Filip,, Andersson, Joel,, Mansten, Erik,, Lundh, Olle,, Thorin, Sara,, Lund University., Werin, Sverker,, Björklund Svensson, Jonas,, Curbis, Francesca,   +9 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Strong-field physics in the molecular frame [PDF]

EPJ Web of Conferences, 2019
Laser-aligned carbonyl-sulfide molecules were strong-field ionized using mid-infrared light. Investigating the strong-field effects in the molecular frame allowed to add novel facets to the understanding of the intrinsic nature of strong-field physics.
Trabattoni Andrea, Trippel Sebastian, De Giovannini Umberto, Olivieri Jean-Frangois, Wiese Joss, Mullins Terry, Onvlee Jolijn, Son Sang-Kil, Frusteri Biagio, Rubio Angel, Küpper Jochen   +10 more
doaj   +1 more source

2D longitudinal modeling of heat transfer and fluid flow during multilayered [PDF]

, 2012
version post-print de l'article : JLA Vol : 24 Iss:3. 2D longitudinal modeling of heat transfer and fluid flow during multilayered direct laser metal deposition processDerived from laser cladding, the Direct Laser Metal Deposition (DLMD) process is ...
CARRON, Denis, LE MASSON, Philippe, GHARBI, Myriam, PEYRE, Patrice, FABBRO, Rémy, CARIN, Muriel, MORVILLE, Simon   +6 more
core  

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Room-temperature macromolecular serial crystallography using synchrotron radiation

IUCrJ, 2014
A new approach for collecting data from many hundreds of thousands of microcrystals using X-ray pulses from a free-electron laser has recently been developed.
Francesco Stellato, Dominik Oberthür, Mengning Liang, Richard Bean, Cornelius Gati, Oleksandr Yefanov, Anton Barty, Anja Burkhardt, Pontus Fischer, Lorenzo Galli, Richard A. Kirian, Jan Meyer, Saravanan Panneerselvam, Chun Hong Yoon, Fedor Chervinskii, Emily Speller, Thomas A. White, Christian Betzel, Alke Meents, Henry N. Chapman   +19 more
doaj   +1 more source

Resolving molecular diffusion and aggregation of antibody proteins with megahertz X-ray free-electron laser pulses

Nature Communications, 2022
The European X-ray FreeElectron Laser Facility generates ultrashort hard X-ray pulses with megahertz repetition rate. Here, the authors probe the dynamics of dense antibody protein (Ig-PEG) solutions using megahertz X-ray photon correlation spectroscopy ...
Mario Reiser, Anita Girelli, Anastasia Ragulskaya, Sudipta Das, Sharon Berkowicz, Maddalena Bin, Marjorie Ladd-Parada, Mariia Filianina, Hanna-Friederike Poggemann, Nafisa Begam, Mohammad Sayed Akhundzadeh, Sonja Timmermann, Lisa Randolph, Yuriy Chushkin, Tilo Seydel, Ulrike Boesenberg, Jörg Hallmann, Johannes Möller, Angel Rodriguez-Fernandez, Robert Rosca, Robert Schaffer, Markus Scholz, Roman Shayduk, Alexey Zozulya, Anders Madsen, Frank Schreiber, Fajun Zhang, Fivos Perakis, Christian Gutt   +28 more
doaj   +1 more source

Simulations of the time and space-resolved X-ray transmission of a free-electron-laser-heated aluminium plasma

, 2016
We present simulations of the time and space-resolved transmission of a solid-density aluminium plasma as it is created and probed with the focussed output of an x-ray free-electron-laser with photon energies ranging from the K-edge of the cold material (
Vinko, SM, Ciricosta, O, Chung, H-K, Lee, RW, Wark, JS, Wark, J, Rackstraw, DS, Rackstraw, D, Vinko, S   +8 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Free Electron Lasers [PDF]

, 2012
Free Electron Lasers consists of 10 chapters, which refer to fundamentals and design of various free electron laser systems, from the infrared to the xuv wavelength regimes. In addition to making a comparison with conventional lasers, a couple of special

core   +2 more sources