The experimental investigation of weak effects in the KLL Auger electron spectrum of Zr and Nb generated in radioactive decay

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00499100" target="_blank" >RIV/61389005:_____/18:00499100 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.elspec.2018.08.004" target="_blank" >http://dx.doi.org/10.1016/j.elspec.2018.08.004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.elspec.2018.08.004" target="_blank" >10.1016/j.elspec.2018.08.004</a>

Result language
angličtina
Original language name
The experimental investigation of weak effects in the KLL Auger electron spectrum of Zr and Nb generated in radioactive decay
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Project
<a href="/en/project/LTT18021" target="_blank" >LTT18021: Cooperation of the Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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