Berlin 2001 – wissenschaftliches Programm

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A: Atomphysik

A 6: Spectroscopy

A 6.11: Vortrag

Dienstag, 3. April 2001, 18:15–18:30, H1028

Cascading de-excitations of inner-shell vacancies — •Andrei Kochur and Victor Sukhorukov — Rostov State University of Transport Communication, 344038 Rostov-na-Donu, Russia

Creation of one or several inner-shell vacancies in an atom gives rise to a multi-step de-excitation cascade. To calculate various characteristics of the vacancy cascades, we proposed an approach based on the straightforward construction of de-excitation trees [1,2]. Within this scheme, the final-ion-charge spectra of singly ionized [1,2], resonantly excited [3] and hollow atoms [4,5] are calculated. Cascade affected Auger spectra [6,7], and fluorescent spectra [8,9] are investigated. Combined calculation of ion yields and multiplet structures has made it possible to develop a new spin-sensitive coincidence technique in photoelectron spectroscopy [10].

[1] A.G. Kochur et al. J. Phys. B: At. Mol. Opt. Phys. 27 (1994) 1709

[2] A.G. Kochur et al. J. Phys. B: At. Mol. Opt. Phys. 28 (1995).387

[3] A.G.Kochur and Ye.B. Mitkina, J. Phys. B: At. Mol. Opt. Phys. 32 (1999) L41

[4] A.G.Kochur J.Electron Spectrosc. Rel. Phenom. (2000), accepted for publication

[5] A.G.Kochur J. Synchr. Rad. (2000), accepted for publication

[6] A.G. Kochur and V.L. Sukhorukov, J. El. Spectrosc. Relat. Phenom. 76 (1995) 325

[7] A.G. Kochur and V.L. Sukhorukov, J. Phys. B: At. Mol. Opt. Phys. 29 (1996) 3587

[8] A.G.Kochur et al. J. Phys. B: At. Mol. Opt. Phys. 31 (1998) 5293

[9] A.G.Kochur et al. J. Phys.B.At. Mol. Opt. Phys. 33 (2000) 2949

[10] Ch. Gerth et al. Phys. Rev. A 57 (1998) 3523