Results 11 to 20 of about 364,432 (293)

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

Impact of Nitrogen, Boron and Phosphorus Impurities on the Electronic Structure of Diamond Probed by X-ray Spectroscopies

C, 2021
Doping diamond with boron, nitrogen or phosphorus enables a fine tuning of its electronic properties, which is particularly relevant for applications involving electron emission.
Sneha Choudhury, Ronny Golnak, Christian Schulz, Klaus Lieutenant, Nicolas Tranchant, Jean-Charles Arnault, Marie-Amandine Pinault-Thaury, François Jomard, Peter Knittel, Tristan Petit   +9 more
doaj   +1 more source

Sulfate Speciation Analysis Using Soft X-ray Emission Spectroscopy [PDF]

Analytical Chemistry, 2021
The chemical and electronic structures of 15 different sulfates are studied using S L2,3 soft X-ray emission spectroscopy (XES). Sulfur L2,3 XES spectra of sulfates are distinctively different from those of other sulfur compounds, which makes XES a powerful technique for sulfate detection.
Lothar Weinhardt, Dirk Hauschild, Ralph Steininger, Nan Jiang, Monika Blum, Wanli Yang, Clemens Heske   +6 more
openaire   +4 more sources

Fabrication of a New Electrochemical Sensor Based on Bimetal Oxide for the Detection of Furazolidone in Biological Samples

Micromachines, 2022
This study utilized a simple hydrothermal method to synthesize nickel molybdenum oxide (NMO) for the detection of furazolidone (FZE). Our synthesized NMO was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman ...
Ruspika Sundaresan, Vinitha Mariyappan, Shen-Ming Chen, Saranvignesh Alagarsamy, Muthumariappan Akilarasan   +4 more
doaj   +1 more source

Visualizing the valence states of europium ions in Eu-doped BaAl2O4 using X-ray nanoprobe mapping

Journal of Synchrotron Radiation, 2022
This study develops and successfully demonstrates visualization methods for the characterization of europium (Eu)-doped BaAl2O4 phosphors using X-ray nanoprobe techniques.
Yu-Hao Wu, Yung-Yang Lin, Jeng-Lung Chen, Shih-Yu Fu, Shu-Chi Huang, Chien-yu Lee, Bo-Yi Chen, Gung-Chian Yin, E-Wen Huang, Mau-Tsu Tang, Bi-Hsuan Lin   +10 more
doaj   +1 more source

BF3/nano-γ-Al2O3 Promoted Knoevenagel Condensation at Room Temperature [PDF]

Journal of Nanostructures, 2015
The Knoevenagel condensation of aromatic aldehydes with barbituric acid, dimedone and malononitrile occurred in the presence of BF3/nano-γ-Al2O3 at room temperature in ethanol.
B. F. Mirjalili, A. Bamoniri, S. M. Nezamalhosseini   +2 more
doaj   +1 more source

No Transition Disk? Infrared Excess, PAH, H-2, And X-Rays From The Weak-Lined T Tauri Star DoAr 21 [PDF]

, 2009
As part of a program to understand disk dispersal and the interplay between circumstellar disks and X-ray emission, we present new high-resolution mid-infrared (IR) imaging, high-resolution optical spectroscopy, and Chandra grating X-ray spectroscopy of ...
Cohen, David H., Gagné, M., Jensen, Eric L.N.   +2 more
core   +4 more sources

Polycrystalline Compound of Co2+-doped Zn2SnO4: Structural and Photoluminescent Properties

Materials Research, 2021
In this work, Zn2SnO4:Co2+ (0.1%) was obtained through a solid-state reaction at high temperature using ZnO, SnO2, and CoCO3. The sample was investigated using X-ray diffraction, X-ray fluorescence, scanning electron microscopy, and photoluminescence ...
T. L. Alvarenga, S. S. Pedro, A. López, L. P. Sosman   +3 more
doaj   +1 more source

Experimental capabilities for liquid jet samples at sub-MHz rates at the FXE Instrument at European XFEL

Journal of Synchrotron Radiation, 2023
The Femtosecond X-ray Experiments (FXE) instrument at the European X-ray Free-Electron Laser (EuXFEL) provides an optimized platform for investigations of ultrafast physical, chemical and biological processes.
F. A. Lima, F. Otte, M. Vakili, F. Ardana-Lamas, M. Biednov, F. Dall'Antonia, P. Frankenberger, W. Gawelda, L. Gelisio, H. Han, X. Huang, Y. Jiang, M. Kloos, T. Kluyver, M. Knoll, K. Kubicek, I. J. Bermudez Macias, J. Schulz, O. Turkot, Y. Uemura, J. Valerio, H. Wang, H. Yousef, P. Zalden, D. Khakhulin, C. Bressler, C. Milne   +26 more
doaj   +1 more source

Quantum Chemical Calculations of X-ray Emission Spectroscopy [PDF]

Journal of Chemical Theory and Computation, 2014
The calculation of X-ray emission spectroscopy with equation of motion coupled cluster theory (EOM-CCSD), time-dependent density functional theory (TDDFT), and resolution of the identity single excitation configuration interaction with second-order perturbation theory (RI-CIS(D)) is studied.
Wadey, J.D., Besley, Nicholas A.
openaire   +4 more sources