The characteristic radiation of copper K β including radiative Auger processes

Melia, Hamish A.; Chantler, Christopher T.; Smale, L. F.; Illig, Alexis J.

doi:10.1088/1361-6455/aba3a6

Cited by 4 publications

(2 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, RAS profiles have never been fitted to a Sc Kβ profile. However, the process is quite a significant contribution to the profile and especially to the profile asymmetry and it is observable in numerous spectra [34]. Hence neglect of this will prevent portability and transferability of reference standards and interpretation of the physics.…”

Section: Radiative Auger Satellite (Ras) Analysismentioning

confidence: 99%

An absolute energy characterisation of scandium Kβto 2 parts per million

Dean

Chantler

Smale

et al. 2020

J. Phys. B: At. Mol. Opt. Phys.

Self Cite

View full text Add to dashboard Cite

We present an absolute energy measurement of the Kβ1,3 (KM2,3) emission spectrum of scandium (Z = 21) accurate to 2.1 parts per million (ppm). The previous experimental uncertainty was estimated as 105 ppm, or 0.47 eV, therefore we improve the accuracy of this measurement by a factor of 50 for use in any x-ray standards. There is a long-standing discrepancy between the most recent experimental and theoretical values. This work reports a Sc Kβ peak energy of 4460.845 eV with estimated standard error uncertainty of 0.0092 eV. The satellite component centroids, line-widths, and relative intensities are determined as a sum of five Voigt functions. The same analysis and experimental method shown here can be applied to advanced experiments in quantum electrodynamics, astrophysics and particle physics on soft x-ray spectra. This value has reconciled some of the previous discrepancy. However, the theoretical value is still discrepant from the new experimental measurement by 1.745 eV with a much tighter constraint on the experimental uncertainty. This strongly strengthens the need for new theoretical calculations and experimental measurements.

show abstract

Section: Radiative Auger Satellite (Ras) Analysismentioning

confidence: 99%

An absolute energy characterisation of scandium Kβto 2 parts per million

Dean

Chantler

Smale

et al. 2020

J. Phys. B: At. Mol. Opt. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Different approaches have been introduced in this kind of calculations to account for 3d K hypersatellite emissions [3,18,19], with uneven comparisons with experimental values [20]. Finally, some effort has been devoted to characterize the structures related with the radiative Auger effect (RAE) associated to K shells [21,22], a phenomenon which has recently drawn the attention for the case of isolated quantum structures [23,24]. However, experimental and theoretical data related to RAE bands corresponding to L shells are scarcely found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Experimental determination of Sn L -shell atomic parameters

Fernandez,

Sepúlveda,

Limandri

et al. 2023

Phys. Rev. A

View full text Add to dashboard Cite

A careful inspection on the tin L x-ray spectrum induced by electron impact was carried out, with the aim of obtaining fundamental atomic properties related to core ionizations and subsequent emissions. A bulk tin standard was irradiated, the resulting spectrum being recorded with a commercial wavelength dispersive spectrometer, and processed by means of a parameter optimization method previously developed. Characteristic energies, relative transition probabilities and natural linewidths were therefore experimentally determined for this element, and compared with data from the literature, when available. Satellite and radiative Auger effect structures were also investigated, for which the corresponding energy shifts and relative intensities were obtained. A number of these parameters were determined, even in overlapping peaks and weak transitions, which evidences the robustness of the spectral processing method used.

show abstract