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

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, amorphous and highly disordered systems, and polymers containing metallic atoms. The INFN-LNF DAΦNE-Light DXR1 beam line is mainly dedicated to soft X-ray absorption spectroscopy; it collects the radiation of a wiggler insertion device and covers the energy range from 0.9 to 3.0 keV or the range going from the K-edge of Na through to the K-edge of Cl. The characteristics of the beamline are reported here together with the XAFS spectra of reference compounds, in order to show some of the information achievable with this X-ray spectroscopy. Additionally, some examples of XAFS spectroscopy applications are also reported.

Download Full-text

X-ray absorption fine structure (XAFS) spectroscopy using synchrotron radiation

Journal of Physics Conference Series ◽

10.1088/1742-6596/365/1/012002 ◽

2012 ◽

Vol 365 ◽

pp. 012002 ◽

Cited By ~ 5

Author(s):

B D Shrivastava

Keyword(s):

Fine Structure ◽

Synchrotron Radiation ◽

X Ray ◽

Xafs Spectroscopy ◽

Absorption Fine ◽

X Ray Absorption

Download Full-text

The Rossendorf Beam Line ROBL – a dedicated experimental station for XAFS measurements of actinides and other radionuclides

Radiochimica Acta ◽

10.1524/ract.2000.88.9-11.633 ◽

2000 ◽

Vol 88 (9-11) ◽

Cited By ~ 59

Author(s):

T. Reich ◽

G. Bernhard ◽

Gerhard Geipel ◽

H. Funke ◽

C. Hennig ◽

...

Keyword(s):

Fine Structure ◽

Molecular Level ◽

European Synchrotron Radiation Facility ◽

Beam Line ◽

Radionuclide Transport ◽

X Ray ◽

Xafs Spectroscopy ◽

Experimental Station ◽

Level Information ◽

X Ray Absorption

X-ray absorption fine structure (XAFS) spectroscopy is a powerful tool for obtaining basic molecular-level information, which is required for a better understanding of the mechanisms responsible for radionuclide transport in the environment. A unique experimental station dedicated to the study of actinides and other radionuclides by XAFS spectroscopy has become operational at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France. The main characteristics of the Rossendorf Beamline, ROBL, and its radiochemistry end station and selected results obtained on Tc and Np solutions are presented.

Download Full-text

Kinetic analysis of Ag particle redispersion into ZSM-5 in the presence of coke using in situ XAFS

Catalysis Science & Technology ◽

10.1039/d0cy01989e ◽

2021 ◽

Author(s):

Kazumasa Murata ◽

Junya Ohyama ◽

Atsushi Satsuma

Keyword(s):

Fine Structure ◽

Kinetic Analysis ◽

X Ray ◽

Xafs Spectroscopy ◽

Absorption Fine ◽

Ag Particles ◽

In Situ Xafs ◽

Ag Particle ◽

X Ray Absorption

In the present study, the redispersion behavior of Ag particles on ZSM-5 in the presence of coke was observed using in situ X-ray absorption fine structure (XAFS) spectroscopy.

Download Full-text

X-Ray Absorption Fine Structure Study in FeTiO3

Modern Physics Letters B ◽

10.1142/s0217984997000918 ◽

1997 ◽

Vol 11 (16n17) ◽

pp. 745-748 ◽

Cited By ~ 4

Author(s):

Rebekah Min-Fang Hsu ◽

Kai-Jan Lin ◽

Cheng Tien ◽

Lin-Yan Jang

Keyword(s):

Absorption Spectrum ◽

Fine Structure ◽

Absorption Spectra ◽

Mixed Valence ◽

Structure Study ◽

X Ray ◽

Xafs Spectroscopy ◽

Absorption Fine ◽

Trivalent State ◽

X Ray Absorption

X-ray absorption fine structure XAFS spectroscopy has been used to determine the valence system for the Fe atom in ilmenite, FeTiO3 . This is the first XAFS data in FeTiO3 to our knowledge. The α- Fe2O3 data served as the standard in determining the ionization of the Fe atom in FeTiO3 . Observation of intensity and k-space are consistent. There was no evidence of mixed valence on comparing the FeTiO3 near edge X-ray absorption spectrum with α- Fe2O3 data. The absorption spectra suggest that iron is in the trivalent state in ilmenite.

Download Full-text

Recent progress in the performance of HAPG based laboratory EXAFS and XANES spectrometers

Journal of Analytical Atomic Spectrometry ◽

10.1039/d0ja00208a ◽

2020 ◽

Vol 35 (10) ◽

pp. 2298-2304

Author(s):

Christopher Schlesiger ◽

Sebastian Praetz ◽

Richard Gnewkow ◽

Wolfgang Malzer ◽

Birgit Kanngießer

Keyword(s):

Fine Structure ◽

Recent Progress ◽

Pyrolytic Graphite ◽

New Developments ◽

X Ray ◽

Xafs Spectroscopy ◽

Absorption Fine ◽

Mosaic Crystals ◽

X Ray Absorption

New developments in the description and modeling of Highly Annealed Pyrolytic Graphite (HAPG) mosaic crystals have led to the possibility of designing optimized optical solutions for X-ray absorption fine structure (XAFS) spectroscopy.

Download Full-text