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

Inoyatov, A. Kh; Kovalík, A; Perevoshchikov, L.L.; Filosofov, D.V.; Vénos, D; Lee, Boon; Ekman, J; Baimukhanova, A

Description

The KLM + KLN Auger electron spectrum of rubidium (Z = 37) emitted in the electron capture decay of radioactive 83Sr in a polycrystalline platinum matrix and also 85Sr 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...[Show more]

dc.contributor.authorInoyatov, A. Kh
dc.contributor.authorKovalík, A
dc.contributor.authorPerevoshchikov, L.L.
dc.contributor.authorFilosofov, D.V.
dc.contributor.authorVénos, D
dc.contributor.authorLee, Boon
dc.contributor.authorEkman, J
dc.contributor.authorBaimukhanova, A
dc.date.accessioned2020-12-20T20:58:07Z
dc.date.available2020-12-20T20:58:07Z
dc.identifier.issn0953-4075
dc.identifier.urihttp://hdl.handle.net/1885/218491
dc.description.abstractThe KLM + KLN Auger electron spectrum of rubidium (Z = 37) emitted in the electron capture decay of radioactive 83Sr in a polycrystalline platinum matrix and also 85Sr 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 85Sr sources prepared by vacuum evaporation on and implanted into the carbon foil, respectively, relative to 85Sr 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.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherInstitute of Physics Publishing
dc.sourceJournal of Physics B: Atomic, Molecular and Optical Physics
dc.titleThe KLM + KLN Auger electron spectrum of rubidium in different matrices
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume50
dc.date.issued2017
local.identifier.absfor020201 - Atomic and Molecular Physics
local.identifier.ariespublicationa383154xPUB7560
local.type.statusPublished Version
local.contributor.affiliationInoyatov, A. Kh, Laboratory of Nuclear Problems, JINR
local.contributor.affiliationKovalík, A , Laboratory of Nuclear Problems, JINR
local.contributor.affiliationPerevoshchikov, L.L., Laboratory of Nuclear Problems, JINR
local.contributor.affiliationFilosofov, D.V., Laboratory of Nuclear Problems, JINR
local.contributor.affiliationVénos, D, Nuclear Physics Institute of the ASCR
local.contributor.affiliationLee, Boon, College of Science, ANU
local.contributor.affiliationEkman, J, Materials Science and Applied Mathematics , Malmö University
local.contributor.affiliationBaimukhanova, A, Laboratory of Nuclear Problems, JINR
local.bibliographicCitation.issue15
local.identifier.doi10.1088/1361-6455/aa7990
dc.date.updated2020-11-23T11:17:47Z
local.identifier.scopusID2-s2.0-85026482507
local.identifier.thomsonID000404903400001
CollectionsANU Research Publications

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