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Title: Excitation of $sup 1$S and $sup 1$D autoionization states and resonance ionization of a helium atom by electron impact

Abstract

The questions concerning the excitations of the /sup 1/S and /sup 1/D autoionization states of the helium atom by electrons are considered in this work. According to Fano's theory in the diagonalized approximation, the process of resonance tonization through an optically forbidden autoionization state is studied in the case of the (2s/sup 2/)/sup 1/S level. In the second Born approximation, simplified for high energies of the incident electron we estimated the role of transitions through the intermediate levels for the excitation of the (2p/sup 2/)/sup 1/S and (2p/su p 2/)/sup 1/D autoionization states. (auth)

Authors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4346164
NSA Number:
NSA-29-022277
Resource Type:
Journal Article
Journal Name:
Opt. Spectrosc. (USSR) (Engl. Transl.), v. 34, no. 6, pp. 607-610
Additional Journal Information:
Other Information: Orig. Receipt Date: 30-JUN-74
Country of Publication:
United States
Language:
English
Subject:
N60400* -Physics (Atomic & Molecular)-Collision Phenomena; *HELIUM- ELECTRON-ATOM COLLISIONS; AUTOIONIZATION; BORN APPROXIMATION; EXCITED STATES

Citation Formats

Lipovetskii, S.S., and Senashenko, V.S. Excitation of $sup 1$S and $sup 1$D autoionization states and resonance ionization of a helium atom by electron impact. United States: N. p., 1973. Web.
Lipovetskii, S.S., & Senashenko, V.S. Excitation of $sup 1$S and $sup 1$D autoionization states and resonance ionization of a helium atom by electron impact. United States.
Lipovetskii, S.S., and Senashenko, V.S. Fri . "Excitation of $sup 1$S and $sup 1$D autoionization states and resonance ionization of a helium atom by electron impact". United States.
@article{osti_4346164,
title = {Excitation of $sup 1$S and $sup 1$D autoionization states and resonance ionization of a helium atom by electron impact},
author = {Lipovetskii, S.S. and Senashenko, V.S.},
abstractNote = {The questions concerning the excitations of the /sup 1/S and /sup 1/D autoionization states of the helium atom by electrons are considered in this work. According to Fano's theory in the diagonalized approximation, the process of resonance tonization through an optically forbidden autoionization state is studied in the case of the (2s/sup 2/)/sup 1/S level. In the second Born approximation, simplified for high energies of the incident electron we estimated the role of transitions through the intermediate levels for the excitation of the (2p/sup 2/)/sup 1/S and (2p/su p 2/)/sup 1/D autoionization states. (auth)},
doi = {},
journal = {Opt. Spectrosc. (USSR) (Engl. Transl.), v. 34, no. 6, pp. 607-610},
number = ,
volume = ,
place = {United States},
year = {1973},
month = {6}
}