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Citation 3

Accession Number

002684915

Author

Kheifets AS.

Title

Difference between the atomic ionization spectra in ( gamma ,e) and (e,2e)
reactions.

Source

Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki, vol.89, no.2, Aug. 1985,
pp.459-69. USSR.

Country of Publication

USSR.

Translated Source

Soviet Physics - JETP (USA), vol.62, no.2, Aug. 1985, pp.260-5. CODEN:
SPHJAR. ISSN: 0038-5646.

Abstract

It is shown that the relative intensity of the principal and satellite lines in the atomic ionization spectrum depends significantly on the mechanism responsible for the formation of the ion. This dependence is explained by the influence of many-electron correlations in the initial state of the atom to be ionized, which is considerable in the case of photoionization (( gamma ,e) reaction) but, under certain definite conditions the effect is small for ionization by electron impact (symmetric, noncoplanar (e,2e) reaction). Consequently, the spectroscopic factor for the different final states of the ion, as defined in the usual way, can be measured only for the symmetric, noncoplanar (e,2e) reaction, but a more involved interpretation is necessary for the ( gamma ,e) reaction. Comparison of the calculated spectroscopic factors of the eigenstates of the ArII/sup 2/S ion with the corresponding experimental data on the ( gamma ,e) and (e,2e) reactions has confirmed these conclusions. (11 References).

Abstract Number

A86074676

Subject Headings

Photoionisation

Non-Thesaurus Subject Headings

atomic electron correlations. atomic electron impact ionisation. ionisation
of atoms.

Key Phrase Identifiers

gamma-ray photoionisation; electron impact ionisation; symmetric noncoplanar
reaction; ArII/sup 2/S ion; atomic ionization spectra; many-electron
correlations; initial state; final states; eigenstates; ArII/sup 2/ S ion.

Classification Codes

Electron correlation and CI calculations (atoms and molecules) [A3120T];
Atomic photoionization, photodetachment, photoelectron spectra [A3280F];
Atomic excitation and ionization by electron impact [A3480D].

Treatment

Theoretical or mathematical.

CODEN

ZETFA7

Language

English.

ISSN

0044-4510.

U.S. Copyright Clearance Center Code

0038-5646/85/080260-06$04.00.

Publication Type

Journal Paper.

Update Code

198600.

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