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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00477401" target="_blank" >RIV/61389005:_____/17:00477401 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1361-6455/aa7990" target="_blank" >http://dx.doi.org/10.1088/1361-6455/aa7990</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6455/aa7990" target="_blank" >10.1088/1361-6455/aa7990</a>

Result language

angličtina

Original language name

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

Original language description

The KLM + KLN Auger electron spectrum of rubidium (Z = 37) emitted in the electron capture decay of radioactive Sr-83 in a polycrystalline platinum matrix and also Sr-85 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 3 sigma with the measured values while disagreement with experiment exceeding 3s 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 1 sigma 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.

Czech name

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Czech description

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Type

J_imp - 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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Physics B-Atomic Molecular and Optical Physics

ISSN

0953-4075

e-ISSN

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Volume of the periodical

50

Issue of the periodical within the volume

15

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

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UT code for WoS article

000404903400001

EID of the result in the Scopus database

2-s2.0-85026482507