Results 31 to 40 of about 284,099 (288)

Insight into an atomic arrangement of [KNbO3]0.9 – [BaNi0.5Nb0.5O3]0.1 powder formed at various calcination temperatures by X-ray absorption spectroscopy

Results in Physics, 2017
Lead-free [KNbO3]0.9 – [BaNi0.5Nb0.5O3]0.1 (KBNNO) perovskite powders are synthesized by the solid-state combustion technique. Phase identification and the crystal structure change at various calcination temperatures Tcal are carried out by X-ray ...
Saichon Sriphan, Suwit Kiravittaya, Pinit Kidkhunthod, Theerachai Bongkarn   +3 more
doaj   +1 more source

X-Ray Photoabsorption in KLL Resonances of O VI And Abundance Analysis [PDF]

, 2000
It is shown that photoabsorption via autoionizing resonances may be appreciable and used for abundance analysis. Analogous to spectral lines, the `resonance oscillator strength' f_r may be defined and evaluated in terms of the differential oscillator ...
Anil K. Pradhan, Arnaud M., Bely-Dubau F., Burke P. G., Gabriel A. H., Hummer D. G., Kaastra J. S., Seaton M. J.   +7 more
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
doaj   +1 more source

Photon interference x-ray absorption fine structure [PDF]

Physical Review B, 2001
Published by Inst., Woodbury ...
Nishino, Y., Tröger, L., Korecki, P., Materlik, G.   +3 more
openaire   +2 more sources

XAFS analysis of Arsenic bound in holocellulose extracted from organic-rich contaminated sediments [PDF]

E3S Web of Conferences, 2019
The arsenic bound in holocellulose, a precursor of humic substances extracted from organic contaminated sediments, was investigated using XANES (x-ray adsorption near-edge structure) and EXAFS (extended x-ray absorption fine structure) with fluorescence ...
Hara Junko, Norota Susumu
doaj   +1 more source

Gallium Selenide and Rubidium Iodide Filling of Single-Walled Carbon Nanotubes as p, and n-Dopant Chemical Compounds

Engineering Proceedings, 2023
I filled the single-walled carbon nanotubes (SWCNTs) with gallium selenide (GaSe) and rubidium iodide (RbI) as p- and n-dopant chemical compounds. The filling was confirmed by high-resolution transmission electron microscopy.
Marianna V. Kharlamova
doaj   +1 more source

Dispersive X-ray absorption spectroscopy using independent grazing-incidence focusing and convexly bent Bragg-crystal dispersing optics

Journal of Synchrotron Radiation
We present a modular instrument for dispersive X-ray absorption spectroscopy (DXAS) developed for the Advanced Spectroscopy Beamline at Sector 25 of the Advanced Photon Source.
Juanjuan Huang, Adam P. Tornheim, Xianbo Shi, Mark Wolfman, Yanna Chen, Steve M. Heald, Shelly D. Kelly, George E. Sterbinsky   +7 more
doaj   +1 more source

Combined X-ray absorption and SEM–EDX spectroscopic analysis for the speciation of thorium in soil

Scientific Reports, 2023
Mobility and bioavailability of radionuclides in the environment strongly depend on their aqueous speciation, adsorption behavior and the solubility of relevant solid phases. In the present context, we focus on naturally occurring Th-232 at a location in
Sanduni Ratnayake, Johannes Lützenkirchen, Nicolas Finck, Dieter Schild, Frank Heberling, Teba Gil-Díaz, Kathy Dardenne, Jörg Rothe, Horst Geckeis   +8 more
doaj   +1 more source

Influence of polyethylene glycol on the physical properties of Co0.2Fe2.8O4 nanoparticles used as MRI contrast agent; synchrotron radiation Fe K-edge XAFS

Journal of Materials Research and Technology, 2021
We have synthesized and characterized the surface-modified nanoparticles (NPs) of Co0.2Fe2.8O4/x polyethylene glycol (PEG) (x = 0, 10, 20, 30, and 40%).
N.G. Imam, Mennatallah AbouHasswa, Giuliana Aquilanti, S.I. El Dek, N. Okasha, Ahmed A.G. Al Shahawy   +5 more
doaj   +1 more source

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