Document Type

Article

Publication Date

9-1996

Publication Title

Physical Review A

Volume

54

Issue

3

First page number:

2099

Last page number:

2106

Abstract

The photoionization cross sections for Ar+ through Ar4+, produced by the Auger decay of a 2p hole in argon, have been measured between 242 eV and 253 eV by the use of synchrotron radiation. The high resolution of the monochromator has allowed a detailed study of the postcollision interactions that occur in this spectral region. The concept of photoelectron recapture by Ar2+ to produce the Ar+ continuum is studied. The relative values of the quantum-mechanical calculations of the photoelectron recapture probability are shown to be in excellent agreement with the present data. The magnitude and shape of the Ar2+ continuum has been explained on the basis that about 67% of the recaptured photoelectrons produce excited states of Ar+ which subsequently reemit the electrons by autoionization.

Keywords

Argon; Atomic orbitals; Auger effect; Electrons — Capture; Photoelectrons; Photoionization; Radioactive decay

Disciplines

Atomic, Molecular and Optical Physics | Biological and Chemical Physics

Language

English

Permissions

Copyright American Physical Society, used with permission

Identifier

DOI: 10.1103/PhysRevA.54.2099

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