A synchrotron radiation micro-X-ray absorption near edge structure study of sulfur speciation in human brain tumors—a methodological approach

2012 ◽  
Vol 27 (2) ◽  
pp. 239-247 ◽  
Author(s):  
Magdalena Szczerbowska-Boruchowska ◽  
Zdzislaw Stegowski ◽  
Marek Lankosz ◽  
Malgorzata Szpak ◽  
Dariusz Adamek
Keyword(s):  
Synchrotron Radiation ◽  
Brain Tumors ◽  
Human Brain ◽  
Methodological Approach ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Human Brain Tumors ◽  
Sulfur Speciation ◽  
X Ray Absorption

Fluorescence Extended X-Ray Absorption Fine Structure Study on Local Structures of Rare-Earth-Doped InGaGdN

2016 ◽  
Vol 1133 ◽  
pp. 429-433
Author(s):  
Siti Nooraya Mohd Tawil ◽  
Shuichi Emura ◽  
Daivasigamani Krishnamurthy ◽  
Hajime Asahi
Keyword(s):  
Fine Structure ◽  
Rare Earth ◽  
Nearest Neighbor ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Local Structures ◽  
Absorption Fine ◽  
X Ray Absorption

Local structures around gadolinium atoms in rare-earth (RE)-doped InGaGdN thin films were studied by means of fluorescence extended X-ray absorption fine structure (EXAFS) measured at the Gd LIII-edges. The samples were doped with Gd in-situ during growth by plasma-assisted molecular beam epitaxy (PAMBE). Gd LIII-edge EXAFS signal from the GaGdN, GdN and Gd foil were also measured as reference. The X-ray absorption near edge structure (XANES) spectra around Gd LIII absorption edge of InGaGdN samples observed at room temperature indicated the enhancement of intensities with the increase of Gd composition. Further EXAFS analysis inferred that the Gd atoms in InGaN were surrounded by similar atomic shells as in the case of GaGdN with the evidence indicating majority of Gd atoms substituted into Ga sites of InGaGdN. A slight elongation of bond length for the 2nd nearest-neighbor (Gd–Ga) of sample with higher Gd concentration was also observed.

X-ray absorption near edge structure study of the electro-oxidation reaction of CO on Pt50Ru50 nanoparticles

1995 ◽  
Vol 398 (1-2) ◽  
pp. 43-47 ◽  
Author(s):  
D. Aberdam ◽  
R. Durand ◽  
R. Faure ◽  
F. Gloaguen ◽  
J.L. Hazemann ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Electro Oxidation ◽  
X Ray Absorption

Electronic structure study of liquid germanium based on x-ray-absorption near-edge structure spectroscopy

1999 ◽  
Vol 59 (3) ◽  
pp. 1571-1574 ◽  
Author(s):  
Chenxi Li ◽  
Kunquan Lu ◽  
Yuren Wang ◽  
Kozaburo Tamura ◽  
Shinya Hosokawa ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption
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