Analysis of the K Satellite Lines in X-Ray Emission Spectra

Deluigi, M. Torres; Díaz-Luque, J.

doi:10.5772/28882

Cited by 2 publications

(10 citation statements)

References 26 publications

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“…The Ka 1 and Ka 2 lines, often just called Ka lines, refer to the radiative decay of a K-shell (1s orbital) vacancy being filled with an electron from the L 2 L 3 -shells (2p orbitals) [157]. Thus, it is dipole allowed having the highest transition probability for a 1s vacancy, leading the brightest emission in K-edge XES [154].…”

Section: Xes Backgroundmentioning

confidence: 99%

“…One can extend the transition rules to include also the molecular orbitals which are created by the hybridisation between the local atomic orbitals and the ligand's orbitals (see Table 2 bottom) [164]. These inter-atomic transitions will then yield information about the molecular electronic structure and the ligands involved [100,149,155,157,165,162]. Therefore we will in the following shortly introduce the so-called satellite emissions, which have first been reported by Sommerfeld and Wentzel in the early 1920s as spark lines in the X-ray spectrum [45,52,166,167].…”

Section: Xes Backgroundmentioning

confidence: 99%

“…We do not want to omit that also the Ka decays can show satellites, however, we will focus here on the Kb satellites as they involve the valence orbitals which are usually of greater interest. For more information on the Ka satellites we refer to Torres-Deluigi et al [157]. The Kb satellite emission lines are the Kb 2;5 and Kb 00 , which appear on the high-energy side of the Kb 1;3 main line (see Table 2 and Fig.…”

Section: Xes Backgroundmentioning

confidence: 99%

“…Their relative intensity is usually only 10 À2 to 10 À3 with respect to the Kb 1;3 main line. Hence the term 'satellite', as they are weak lines in the vicinity of a strong parent emission [157]. These satellites carry ligand information via the molecular orbitals created by the hybridisation between the metal and the ligand [76,96,149,155,161,164,168,163,169,162].…”

Section: Xes Backgroundmentioning

confidence: 99%

“…The centroid and the intensity of the weak Kb 00 feature can be used to identify bond lengths and the element species of the ligands, which can be understood via the characteristic energy of the ligand's 2s level. Though entirely based on different mechanisms, VtC-XES is somewhat related to EXAFS in the sense that both spectroscopies yield information on the local atomic structure around the absorbing atom [157,171]. However, while difficult with EXAFS, as discussed in several publications VtC-XES enables to distinguish different ligands with similar atomic numbers Z such as carbon (C, Z ¼ 6), nitrogen (N, Z ¼ 7), oxygen (O, Z ¼ 8) and fluorine (F, Z ¼ 9) as the example shown in Fig.…”

Section: Xes Backgroundmentioning

confidence: 99%

See 4 more Smart Citations

Modern X-ray spectroscopy: XAS and XES in the laboratory

Zimmermann

Peredkov

Abdala

et al. 2020

Coordination Chemistry Reviews

161

140

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X-ray spectroscopy is an important tool for scientific analysis. While the earliest demonstration experiments were realised in the laboratory, with the advent of synchrotron light sources most of the experiments shifted to large scale synchrotron facilities. In the recent past there is an increased interest to perform X-ray experiments also with in-house laboratory sources, to simplify access to X-ray absorption and X-ray emission spectroscopy, in particular for routine measurements. Here we summarise the recent developments and comment on the most representative example experiments in the field of in-house laboratory X-ray spectroscopy. We first give an introduction and some historic background on X-ray spectroscopy. This is followed by an overview of the detection techniques used for X-ray absorption and X-ray emission measurements. A short paragraph also puts related high energy resolution and resonant techniques into context, though they are not yet feasible in the laboratory. At the end of this section the opportunities using wavelength dispersive X-ray spectroscopy in the laboratory are discussed. Then we summarise the relevant details of the recent experimental laboratory setups split into two separate sections, one for the recent von Hamos setups, and one for the recent Johann/Johansson type setups. Following that, focussing on chemistry and catalysis, we then summarise some of the notable X-ray absorption and X-ray emission experiments and the results accomplished with in-house setups. In a third part we then discuss some applications of laboratory X-ray spectroscopy with a particular focus on chemistry and catalysis.

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Section: Xes Backgroundmentioning

confidence: 99%

Section: Xes Backgroundmentioning

confidence: 99%

Section: Xes Backgroundmentioning

confidence: 99%

Section: Xes Backgroundmentioning

confidence: 99%

Section: Xes Backgroundmentioning

confidence: 99%

See 3 more Smart Citations

Modern X-ray spectroscopy: XAS and XES in the laboratory

Zimmermann

Peredkov

Abdala

et al. 2020

Coordination Chemistry Reviews

161

140

View full text Add to dashboard Cite

show abstract

Laboratory-based X-ray spectrometer for actinide science

Novichkov,

Trigub,

Gerber

et al. 2023

J Synchrotron Radiat

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X-ray absorption and emission spectroscopies nowadays are advanced characterization methods for fundamental and applied actinide research. One of the advantages of these methods is to reveal slight changes in the structural and electronic properties of radionuclides. The experiments are generally carried out at synchrotrons. However, considerable progress has been made to construct laboratory-based X-ray spectrometers for X-ray absorption and emission spectroscopies. Laboratory spectrometers are reliable, effective and accessible alternatives to synchrotrons, especially for actinide research, which allow dispensing with high costs of the radioactive sample transport and synchrotron time. Moreover, data from laboratory spectrometers, obtained within a reasonable time, are comparable with synchrotron results. Thereby, laboratory spectrometers can complement synchrotrons or can be used for preliminary experiments to find perspective samples for synchrotron experiments with better resolution. Here, the construction and implementation of an X-ray spectrometer (LomonosovXAS) in Johann-geometry at a radiochemistry laboratory is reported. Examples are given of the application of LomonosovXAS to actinide systems relevant to the chemistry of f-elements, the physical chemistry of nuclear power engineering and the long-term disposal of spent nuclear fuel.

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Analysis of the K Satellite Lines in X-Ray Emission Spectra

Cited by 2 publications

References 26 publications

Modern X-ray spectroscopy: XAS and XES in the laboratory

Modern X-ray spectroscopy: XAS and XES in the laboratory

Laboratory-based X-ray spectrometer for actinide science

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