Improved energies for the 5.2 keV M1 and 42.0 keV M2 nuclear transitions in 83Rb

Inoyatov, A. Kh.; Ryšavý, M.; Kovalı́k, A.; Filosofov, D.V.; Zhdanov, V. S.; Yushkevich, Yu. V.

doi:10.1140/epja/i2014-14059-0

Cited by 6 publications

(10 citation statements)

References 17 publications

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“…[4] 82 Sr was obtained from a Y target irradiated at proton energy of 300 MeV. [24] 133 Ba was produced by irradiation of a thorium target with 300 MeV protons. Isolation of Ba from the irradiated target was performed as described elsewhere.…”

Section: Radionuclides For Distribution Coefficients and Column Separmentioning

confidence: 99%

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Filosofov

Lebedev

Radchenko

et al. 2015

Solvent Extraction and Ion Exchange

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In this work, the interactions between the divalent alkaline earth elements (AEE) (Sr, Ba, Ra), the trivalent rare earth elements (REE) (Ce-Lu, Y), and Ac(III) with Sr-resin were investigated in the presence of HNO 3 , HCl, HBr, HClO 4 , and HPF 6 . Distribution coefficients of these ions on the Sr-resin were determined under batch-loading conditions. Lastly, online column separations were performed to demonstrate the utility of these systems. Substantial differences in the behavior of the ions in solutions comprised of the five different acids were observed. These differences can partly be explained by a combination of ion exchange (primary) and extraction (solvation) mechanisms. From a practical point of view, the Srresin/HClO 4 or Sr-resin/HPF 6 systems were demonstrated to be effective for the separation and purification of the different groups of the elements.

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Section: Radionuclides For Distribution Coefficients and Column Separmentioning

confidence: 99%

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Filosofov

Lebedev

Radchenko

et al. 2015

Solvent Extraction and Ion Exchange

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“…Natural widths of some fitted spectrum components of the KLM + KLN Auger electron spectrum of 85 Rb (measured with the 85 Sr source prepared by evaporation in vacuum on the polycrystalline carbon foil) are presented in table 3. They are compared with the values obtained as a sum of the experimental natural widths of the rubidium atomic levels (participating in the individual Auger transitions) based on the data [66][67][68]. Reasonable agreement is generally observed between the calculated and measured values mainly due to the large uncertainties of the latter ones.…”

Section: Natural Widths Of the Spectrum Componentsmentioning

confidence: 93%

The KLM + KLN Auger electron spectrum of rubidium in different matrices

Inoyatov¹,

Kovalı́k²,

Perevoshchikov³

et al. 2017

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

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The KLM + KLN Auger electron spectrum of rubidium (Z = 37) emitted in the electron capture decay of radioactive 83 Sr in a polycrystalline platinum matrix and also 85 Sr in polycrystalline platinum and carbon matrices as well as in an evaporated layer onto a carbon backing were experimentally studied in detail for the first time using a combined electrostatic electron spectrometer. Energies, relative intensities, and natural widths of fifteen basic spectrum components were determined and compared with both theoretical predictions and experimental data for krypton (Z = 36). Relative spectrum line energies obtained from the semi-empirical calculations in intermediate coupling scheme were found to agree within 3σ with the measured values while disagreement with experiment exceeding 3σ was often observed for values obtained from our multiconfiguration Dirac-Hartree-Fock calculations. The absolute energy of the dominant spectrum component given by the semi-empirical approach agrees within 1σ with the measured value. Shifts of +(0.2 ± 0.2) and −(1.9 ± 0.2) eV were measured for the dominant KLM spectrum components between the 85 Sr sources prepared by vacuum evaporation on and implanted into the carbon foil, respectively, relative to 85 Sr implanted into the platinum foil. A value of (713 ± 2) eV was determined for the energy difference of the dominant components of the KLM + KLN Auger electron spectra of rubidium and krypton generated in the polycrystalline platinum matrix. From the detailed analysis of the measured data and available theoretical results, the general conclusion can be drawn that the proper description of the KLM + KLN Auger electron spectrum for Z around 37 should still be based on the intermediate coupling of angular momenta taking into account relativistic effects.

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“…The spectrometer energy scale was calibrated by means of seventeen low energy conversion electron lines. Twelve of them (listed in parentheses) are generated in the internal conversion (IC) of three nuclear transitions in 169 Tm with energies E γ = 8.410 08 (21) [11] (M 1,2 , N 1,3 ), 20.743 78 (10) [12] (L 1-3 , M 1-3 , N 1 , O 1 ), and 63.120 81(5) keV [13] (K) and five other (K, L 1-3 , M 1 ) in the IC of the 14.413 00 (15) keV [13] nuclear transition in 57 Fe. Using the experimental Fe and Tm electron binding energies E bF (i) [14] related to the Fermi level (i is the atomic subshell index), we evaluated energies E F (i) of the above calibration conversion electron lines (related to the Fermi level) as E F (i) = E γ -E bF (i).…”

Section: Measurements and Energy Calibrationmentioning

confidence: 99%

“…means the weighted mean. c Rubidium K and L subshell atomic level widths taken from [21]. d Rubidium K and L subshell atomic level widths taken from [22].…”

Section: Transition Energiesmentioning

confidence: 99%

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Search for environmental effects on the KLL Auger spectrum of rubidium generated in radioactive decay

et al. 2015

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The KLL Auger spectrum of rubidium following the electron capture (EC) decay of 83 Sr and 85 Sr isotopes was experimentally studied in detail for the first time using one 83 Sr source and three 85 Sr sources in different host matrices. Energies, relative intensities, and natural widths of all the nine well-resolved basic spectrum components were determined and compared with both predictions and experimental data for krypton. The results of our multiconfiguration Dirac-Fock calculations demonstrated an influence of the 'atomic structure effect' on absolute energies of the KLL transitions following the creation of initial vacancies by the EC decay. Environmental effects on the KLL Auger spectrum were distinctly observed only for the absolute transition energies.

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Improved energies for the 5.2 keV M1 and 42.0 keV M2 nuclear transitions in 83Rb

Cited by 6 publications

References 17 publications

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

The KLM + KLN Auger electron spectrum of rubidium in different matrices

Search for environmental effects on the KLL Auger spectrum of rubidium generated in radioactive decay

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