Results 61 to 70 of about 95,748 (273)

Spectral and timing studies of 2S 1417-624 during a giant outburst [PDF]

, 2018
We present the results obtained from timing and spectral studies of the accretion powered X-ray pulsar 2S~1417-624 during a giant outburst in 2009 by using {\it Rossi X-ray Timing Explorer (RXTE)} observations. X-ray pulsations were detected in the light
Epili, Prahlad R., Gupta, Shivangi, Jaisawal, Gaurava K., Naik, Sachindra   +3 more
core   +2 more sources

X-rays induced atomic dynamics in a lithium-borate glass

Condensed Matter Physics, 2019
The continuous development of synchrotron-based experimental techniques in the X-ray range provides new possibilities to probe the structure and the dynamics of bulk materials down to inter-atomic distances.
F. Dallari, G. Pintori, G. Baldi, A. Martinelli, B. Ruta, M. Sprung, G. Monaco   +6 more
doaj   +1 more source

A Contrast Calibration Protocol for X-ray Speckle Visibility Spectroscopy

Applied Sciences, 2021
X-ray free electron lasers, with their ultrashort highly coherent pulses, opened up the opportunity of probing ultrafast nano- and atomic-scale dynamics in amorphous and disordered material systems via speckle visibility spectroscopy.
Yanwen Sun, Vincent Esposito, Philip Adam Hart, Conny Hansson, Haoyuan Li, Kazutaka Nakahara, James Paton MacArthur, Silke Nelson, Takahiro Sato, Sanghoon Song, Peihao Sun, Paul Fuoss, Mark Sutton, Diling Zhu   +13 more
doaj   +1 more source

Field induced anisotropic cooperativity in a magnetic colloidal glass

, 2015
The translational dynamics in a repulsive colloidal glass-former is probed by time-resolved X-ray Photon Correlation Spectroscopy. In this dense dispersion of charge-stabilized and magnetic nanoparticles, the interaction potential can be tuned, from ...
Chushkin, Y, Dubois, E, Dupuis, V, Perzynski, R, Robert, A, Wandersman, E   +5 more
core   +2 more sources

Electronic structure and spectroscopy of the quaternary Heusler alloy Co$_2$Cr$_{1-x}$Fe$_{x}$Al [PDF]

, 2006
Quaternary Heusler alloys Co$_2$Cr$_{1-x}$Fe$_{x}$Al with varying Cr to Fe ratio $x$ were investigated experimentally and theoretically. The electronic structure and spectroscopic properties were calculated using the full relativistic Korringa-Kohn ...
Auth N, Bacon G E, Brown P J, Claudia Felser, Coey J M D, Ebert H, Ebert H, Eriksson O, Fecher G H, Fecher G H, Felser C, Felser C, Florian Kronast, Gerd Schönhense, Gerhard H Fecher, Hermann A Dürr, Heusler Fr, Hong-Ji Lin, Ishida S, Keisuke Kobayashi, Kristian Kroth, Mavropoulos Ph, Meisel W, Panaccione G, Sabine Wurmehl, Webster P J, Webster P J, Yuji Saitoh, Yukiharu Takeda   +28 more
core   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

Advanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge, Ahsan Irshad, Umar Jamil, Srosh Fazil, Khuram Liaqat, Kashif Shahzad, Fakhar Alam, Mehboob Alam   +7 more
wiley   +1 more source

Realizing split-pulse x-ray photon correlation spectroscopy to measure ultrafast dynamics in complex matter

Physical Review Research, 2020
Split-pulse x-ray photon correlation spectroscopy has been proposed as one of the unique capabilities made possible with x-ray free electron lasers. It enables characterization of atomic-scale structural dynamics that dictates the macroscopic properties ...
Yanwen Sun, Mike Dunne, Paul Fuoss, Aymeric Robert, Diling Zhu, Taito Osaka, Makina Yabashi, Mark Sutton   +7 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Dynamics at the crystal-melt interface in a supercooled chalcogenide liquid near the glass transition. [PDF]

, 2020
Direct quantitative measurements of nanoscale dynamical processes associated with structural relaxation and crystallization near the glass transition are a major experimental challenge.
Fluerasu, Andrei, Jangid, Rahul, Kohne, Chris, Kukreja, Roopali, Li, Jianheng, Sen, Sabyasachi, Zhang, Yugang, Zhu, Weidi   +7 more
core   +1 more source