Relativistic M-subshell radiationless transition probabilities and energies for Zn, Cd and Hg

Sampaio, J. M.; Parente, F.; Indelicato, P.; Marques, J. P.

doi:10.1016/j.adt.2014.04.001

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…To ensure orthogonality, no orbital relaxation was allowed between the initial and final bound state wavefunctions during the calculation of the radiationless transition rates. These were, however, calculated using the correct transition energies obtained in previous independent calculations of initial and final state wavefunctions . To keep consistency between the radiative and radiationless calculations, multiconfiguration wavefunctions beyond intermediate coupling were not employed because the approximation used for the evaluation of the radiationless transition rates cannot be used in an optimized level calculation with correlation orbitals.…”

Section: Relativistic Calculations Of Atomic Parameters Of Fe and Znmentioning

confidence: 99%

The investigation of K-shell fluorescence parameters of Zn-Fe alloys with different grain size and microstrain values

et al. 2017

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It is known that zinc alloys with iron group metals have better corrosion resistance than pure zinc. Owing to the corrosion resistance of these alloys, Zn-Fe coatings are widely used in automotive industry and have excellent mechanical performance. In this work, we investigated the relationship between the changes in the measured X-ray fluorescence parameters (K β /K α , σ Kα and σ Kβ ) and the changes in the structural parameters such as microstrain or grain size values for Zn-Fe alloys that were prepared with different pH values. To explain these changes, the K α and K β X-ray production cross sections, and the K β /K α X-ray intensity ratio values were calculated by three different ways for the elemental forms of Zn and Fe. The structural parameters, such as microstrain and grain size, were also calculated. We expect that the outer shell electronic distribution affects the structural parameters of the produced Zn-Fe alloys, changing the measured K α and K β X-ray production cross sections, and the K β /K α X-ray intensity ratio values. We also show that Zn-Fe alloy mi nimum microstrain value corresponds to the maximum changes in K β X-ray production cross-section values of Fe and Zn.

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Section: Relativistic Calculations Of Atomic Parameters Of Fe and Znmentioning

confidence: 99%

The investigation of K-shell fluorescence parameters of Zn-Fe alloys with different grain size and microstrain values

et al. 2017

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“…Fluorescence yields are among the fundamental atomic physics parameters, with important applications in all processes resulting from the interaction of radiation with matter. Therefore, they are routinely used in applications based on atomic and nuclear analytical techniques [26][27][28][29], and they are also important for the computation of x-ray production cross-sections [31,32]. Where reliability and accuracy are concerned, the end user of such parameters always assumes that these values are accurate and well known, but this might not generally be the case.…”

Section: Introductionmentioning

confidence: 99%

Relativistic calculation of K-, L- and M-shell x-ray fluorescence yields for Ba

Madeira¹,

Sampaio²,

Guerra³

et al. 2015

Phys. Scr.

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A thorough survey of the literature has shown that fluorescence yields of barium are not well covered even though they are an element of major importance in electron beam ion trap (EBIT) devices. This work is meant to contribute towards filling in this gap by presenting new relativistic calculations for the K-, L-and M-shell fluorescence yields of barium, using the Dirac-Fock (DF) approach. Our results show good agreement with previous results for the Kand L-shells. There are no theoretical or experimental references for the M-shell, making these calculations the first ones performed for this shell.

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Calculations of photo-induced X-ray production cross-sections in the energy range 1–150 keV and average fluorescence yields for Zn, Cd and Hg

Sampaio

Guerra

Parente

et al. 2016

Atomic Data and Nuclear Data Tables

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Relativistic M-subshell radiationless transition probabilities and energies for Zn, Cd and Hg

Cited by 4 publications

References 20 publications

The investigation of K-shell fluorescence parameters of Zn-Fe alloys with different grain size and microstrain values

The investigation of K-shell fluorescence parameters of Zn-Fe alloys with different grain size and microstrain values

Relativistic calculation of K-, L- and M-shell x-ray fluorescence yields for Ba

Calculations of photo-induced X-ray production cross-sections in the energy range 1–150 keV and average fluorescence yields for Zn, Cd and Hg

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