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The experimental investigation of weak effects in the KLL Auger electron spectrum of Zr and Nb generated in radioactive decay
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- Inoyatov, A. Kh. (författare)
- Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation; National University of Uzbekistan, Tashkent, 100174, Uzbekistan
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- Kovalik, A. (författare)
- Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation; Nuclear Physics Institute of the ASCR, Řež, Prague, CZ-25068, Czech Republic
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- Perevoshchikov, L. L. (författare)
- Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation
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- Filosofov, D. V. (författare)
- Laboratory of Nuclear Problems, JINR, Dubna, Moscow Region, Russian Federation
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- Ekman, Jörgen (författare)
- Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM)
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- Venos, D. (författare)
- Nuclear Physics Institute of the ASCR, Řež, Prague, CZ-25068, Czech Republic
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- Muminov, T. M. (författare)
- National University of Uzbekistan, Tashkent, Uzbekistan
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- Radchenko, V. (författare)
- TRIUMF, 4004 Wesbrook Mall, Vancouver, V6T 2A3, Canada
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- Zhdanov, V. S. (författare)
- Institute of Nuclear Physics, Almaty, Kazakhstan
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- Engelska.
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Ingår i: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier. - 0368-2048 .- 1873-2526. ; 229, s. 61-67
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The KLL Auger electron spectra of Zr (Z = 40) and Nb (Z = 41) following respectively the electron capture (EC) decay of Nb-90 and the de-excitation of the isomeric state of Nb-91m were investigated in detail using a combined electrostatic electron spectrometer and radioactive sources prepared by surface sorption on a polycrystalline carbon substrate. For both elements, energies, relative intensities, and natural widths of all the nine well-resolved basic spectrum components were determined and compared with theoretical predictions and with results of previous measurement as well. Results of our ab initio multieonfiguration Dirac-Hartree-Fock calculations are discussed also in relation to the solid-state effect. Indications of an influence of the EC decay on the absolute energy of the KL2L3(D-1(2)) transition (so-called atomic structure effect) in Zr were found. The effect of the retarded current-current interaction on the KL1L2(P-3(0)) transition intensity was observed to be appreciable for the investigated elements in accordance with the prediction.
Nyckelord
- Zr-90
- Nb-90
- Nb-91m
- KLL Auger transitions
- Atomic structure effect
- Multiconfiguration Dirac-Hartree-Fock
- calculations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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