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Projects / Programmes source: ARIS

Electron correlations in atomic processes

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Research activity

Code Science Field Subfield
1.02.05  Natural sciences and mathematics  Physics  Medium- and high-energy physics 

Code Science Field
P230  Natural sciences and mathematics  Atomic and molecular physics 
Keywords
atoms, ions, electron impact ionization, electron spectrometer, Auger spectra, Auger satellites, hypersatellites, atomic inner shells, binary encounter approximation, Coulomb ionization, post-collision-interaction, neon
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (7)
no. Code Name and surname Research area Role Period No. of publications
1.  15589  Drago Brodnik    Researcher  1999 - 2000  62 
2.  04647  MSc Denis Glavič Cindro  Physics  Researcher  2000  326 
3.  11141  PhD Artur Muehleisen  Physics  Researcher  1998 - 2000  53 
4.  12314  PhD Primož Pelicon  Physics  Researcher  2000  585 
5.  17108  Marjan Ravnikar    Researcher  1997 - 2000  45 
6.  07716  PhD Žiga Šmit  Physics  Head  2000  469 
7.  11854  PhD Matjaž Žitnik  Physics  Researcher  2000  316 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,742 
Abstract
The aim of the project is to study atomic transitions with more participating electrons, and thus indirectly the interaction among the electrons. Basic work is performed by the electron spectrometer of our own construction, which is primarily intended for the observation of processes in gas targets bombarded by electrons. The spectrometer consists of a 30-degree plan-parallel analyzer and a rectangular lens, which is optimal geometry for the interaction of an electron beam with the gas target. The investigations under way include studies of the Auger satellites and hipersatellites in neon atoms, the post-collision interaction in the Auger spectra, and the coincidence processes during sequential decays. Experimentally, the onset of Auger satellites and hypersatellites in the vicinity of the threshold was studied. After calculating the radiation widths and branching ratios, the cross sections for the double-ionized states were determined and compared to the calculated values obtained by the binary encounter model. The shape of the diagram lines modified by the post-collision-interaction, was investigated. The many-electron effects in the atom were also studied for the inner shell ionization by light ions, where the atomic states are heavily distorted by the Coulomb interaction with the projectile.
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