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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/LTT18021" target="_blank" >LTT18021: Spolupráce ČR s SÚJV Dubna v teoretické a jaderné fyzice a při využití jaderných metod v dalších oborech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Electron Spectroscopy and Related Phenomena

ISSN

0368-2048

e-ISSN

—

Svazek periodika

229

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

61-67

Kód UT WoS článku

000452817300010

EID výsledku v databázi Scopus

2-s2.0-85054371864