| Zugriffsnummer | 12264 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | L23[L23] - MM[L23] and L23[M2] - MM[M2] Auger vacancy satellite spectra of argon |
| Autor(in); Institution |
Busch, F. von; Universität Bonn, Physikalisches Institut, Bonn, GERMANY
Kuetgens, Ulrich; Q.201, Avogadro, PTB-Braunschweig
Doppelfeld, J.; Universität Bonn, Physikalisches Institut, Bonn, GERMANY
Fritzsche, S.; Universität Kassel, Fachbereich Physik, Kassel, GERMANY
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| Quelle/Jahr | Physical Review A: 59 (1999), 3, 2030-2042 |
| ISSN | 1050-2947 |
| DOI | |
| Verlag | Amsterdam: North-Holland |
| Klassifikationscode | PACS: 32.30.-r ; PACS: 32.80.Hd ; PACS: 31.15.Ar |
| Freie Schlagworte | Auger decay ; photoionization ; electron-ion coincidence ; argon |
| Zusammenfassung | The deexcitation of a 1s core hole in argon via parallel Auger cascade branches leads to the emission of several superimposed L23 - MM vacancy satellite spectra. These spectra arise from the presence of various configurations of additional "spectator" holes left by preceding Auger transitions. Such spectator vacancies (henceforth enclosed by brackets) cause characteristic energy shifts and a more complicated multiplet splitting. The most intense lines of the superimposed spectra have been successfully assigned previously. Here we present an extensive refinement and augmentation of this work. The experimental analysis obtained for the two particular L23 - MM satellite spectra arising from the principal K - L23L23 deexcitation branch is compared to multiconfiguration Dirac-Fock calculations of energies and intensities. Excellent agreement is found, enabling an almost complete assignment of the recognizable lines. Furthermore, by comparison with the electron impact excited L23 - MM spectrum a number of other lines are attributed to the normal L23 - MM and the L23[M] - MM[M] satellite spectrum, which here originate, respectively, from concomitant single primary L23 and L1 ionization. We believe this to be the first comprehensive analysis of a compound Auger cascade spectrum. |
| Rechteinformation | 1999, American Physical Society |