Chemical effects on the K{beta}{sup ''} and K{beta}{sub 2,5} x-ray lines of titanium and its compounds

Journal Article · Thu Oct 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.042519· OSTI ID:21316405

Mandic, Luka; Fazinic, Stjepko; Jaksic, Milko ^[1]

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1. Physics Department, University of Rijeka, Omladinska 14, HR-51000 Rijeka (Croatia)

High-resolution K{beta} x-ray spectra induced by 2 MeV protons in thick Ti, TiO, Ti{sub 2}O{sub 3}, TiO{sub 2}, MgTiO{sub 3}, FeTiO{sub 3}, TiC, TiN, and TiB{sub 2} targets were measured using a wavelength dispersive spectrometer combined with a position-sensitive detector. The intensities and energies of the K{beta}{sub 2,5} and K{beta}{sup ''} lines relative to the K{beta}{sub 1,3} line were extracted. The influence of self-absorption in thick targets was investigated using related x-ray-absorption near-edge-structure spectra that are available in the literature to extract mass absorption coefficients close to the K absorption edge. The correlation of the relative position of the K{beta}{sub 2,5} line with a titanium formal oxidation state in oxide compounds confirmed that the oxidation state of Ti in FeTiO{sub 3} is probably a mixture of Ti III and Ti IV states, which has been recently reported by other authors using different methods. The strengths of the K{beta}{sub 2,5} and K{beta}{sup ''} transition probabilities per titanium-ligand pair were found to decrease exponentially as the average titanium-ligand bond distance increased, which is similar to results obtained for various compounds with vanadium or manganese as the central 3d metal atoms.

• OSTI ID: 21316405
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
BOND LENGTHS
ENERGY-LEVEL TRANSITIONS
K ABSORPTION
LIGANDS
MANGANESE
POSITION SENSITIVE DETECTORS
PROTONS
SELF-ABSORPTION
TITANATES
TITANIUM
TITANIUM BORIDES
TITANIUM CARBIDES
TITANIUM NITRIDES
TITANIUM OXIDES
VANADIUM
X RADIATION
X-RAY SPECTRA
X-RAY SPECTROSCOPY