Results 21 to 30 of about 11,563 (263)

DAFNE-Light DXR1 Soft X-Ray Synchrotron Radiation Beamline: Characteristics and XAFS Applications

Condensed Matter, 2019
X-ray Absorption Fine Structure Spectroscopy (XAFS) is a powerful technique to investigate the local atomic geometry and the chemical state of atoms in different types of materials, especially if lacking a long-range order, such as nanomaterials, liquids,
Antonella Balerna
doaj   +1 more source

Assessing the prospect of XAFS experiments of metalloproteins under in vivo conditions at Indus-2 synchrotron facility, India

Journal of Synchrotron Radiation, 2023
The feasibility of X-ray absorption fine-structure (XAFS) experiments of ultra-dilute metalloproteins under in vivo conditions (T = 300 K, pH = 7) at the BL-9 bending-magnet beamline (Indus-2) is reported, using as an example analogous synthetic Zn (0.1 ...
Debdutta Lahiri, Richa Agrawal, Khileshwari Chandravanshi, Parasmani Rajput, Ankur Agrawal, Ashutosh Dwivedi, Ravindra D. Makde, S. N. Jha, Nandini Garg   +8 more
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Coupling between γ-irradiation and synchrotron-radiation-based XAFS techniques for studying Mn-doped ZnO nanoparticles

Journal of Synchrotron Radiation, 2022
γ-Irradiation and synchrotron-radiation-based X-ray absorption fine-structure (XAFS) spectroscopy have been used to induce structure disorder through the interaction of γ-rays (200 kGy) with fabricated Mn-doped ZnO nanoparticles (NPs) and then to examine
N. G. Imam, Messaoud Harfouche, A. A. Azab, S. Solyman   +3 more
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Site multiplicity of rare earth ions in III-nitrides [PDF]

, 2004
This presentation reviews recent lattice location studies of RE ions in GaN by electron emission channelling (EC) and X-ray absorption fine structure (XAFS) techniques. These studies agree that RE ions at low concentrations (whether they are incorporated
De-Vries, B., Edwards, P.R., Hourahine, B., Katchkanov, V., Martin, R.W., Mosselmans, J.F.W., Nogales, E., O'Donnell, K.P., Wang, K.   +8 more
core   +2 more sources

Transmission properties of the X-ray window for the SIXA spectrometer [PDF]

, 1996
The ultrathin X-ray entrance window for the spaceborne spectrometer SIXA was characterised using synchrotron radiation. X-ray absorption fine structure near the absorption edges of the constituting elements (aluminium, carbon, oxygen and nitrogen) was ...
Huovelin, J., Tikkanen, T.
core   +2 more sources

Data acquisition system of a von Hamos X-ray emission spectrometer based on PILATUS detector

He jishu, 2022
BackgroundHigh energy resolution X-ray emission spectroscopy (XES) has higher energy resolution than conventional X-ray absorption fine structure spectroscopy (XAFS), hence a powerful tool to explore the fine electronic structure of matter.
GU Songqi, MEI Bingbao, JIANG Zheng, HUANG Yuying   +3 more
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Attosecond dispersive soft X-ray absorption fine structure spectroscopy in graphite [PDF]

, 2018
Phase transitions of solids and structural transformations of molecules are canonical examples of important photo-induced processes, whose underlying mechanisms largely elude our comprehension due to our inability to correlate electronic excitation with ...
Biegert, Jens, Buades, Bárbara, Cousin, Seth L., Di Palo, Nicola, Koppens, Frank, León, Iker, Moonshiram, Dooshaye, Pi, Irina, Picón, Antonio, Schmidt, Peter, Sidiropoulos, Themistoklis P. H.   +10 more
core   +2 more sources

High-accuracy transmission and fluorescence XAFS of zinc at 10 K, 50 K, 100 K and 150 K using the hybrid technique

Journal of Synchrotron Radiation, 2023
The most accurate measurements of the mass attenuation coefficient for metals at low temperature for the zinc K-edge from 9.5 keV to 11.5 keV at temperatures of 10 K, 50 K, 100 K and 150 K using the hybrid technique are reported.
Marcus W. John, Daniel Sier, Ruwini S. K. Ekanayake, Martin J. Schalken, Chanh Q. Tran, Bernt Johannessen, Martin D. de Jonge, Peter Kappen, Christopher T. Chantler   +8 more
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Understanding the role of promoters in catalysis: operando XAFS/DRIFTS study of CeO_x/Pt/Al₂O₃ during CO oxidation [PDF]

, 2017
A combined operando XAFS/DRIFTS study on CeOx/Pt/Al2O3 catalysts has been performed during CO oxidation and provides insights into the changes in nanoparticle structure and adsorbed species during the reaction profile. The onset of CO2 formation is shown
Crabb, E. M., Gianolio, D., Gibson, E. K., Russell, A. E., Thompsett, D., Wells, P. P.   +5 more
core   +2 more sources

Controllable sites and high-capacity immobilization of uranium in Nd2Zr2O7 pyrochlore

Journal of Synchrotron Radiation, 2022
As potential nuclear waste host matrices, two series of uranium-doped Nd2Zr2O7 nanoparticles were successfully synthesized using an optimized molten salt method in an air atmosphere.
Jian Sun, Jing Zhou, Zhiwei Hu, Ting-Shan Chan, Renduo Liu, Haisheng Yu, Linjuan Zhang, Jian-Qiang Wang   +7 more
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