Post-collision Interactions in the Auger Decay of the Ar L-shell

Authors

James A.R. Samson, Behlen Laboratory of PhysicsFollow
Wayne C. Stolte, University of Nevada, Las VegasFollow
Z. X. He, IBM, Inc.Follow
J. N. Cutler, Wright Patterson AFB
D. Hansen, University of Nevada, Las VegasFollow

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

Repository Citation

Samson, J. A., Stolte, W. C., He, Z. X., Cutler, J. N., Hansen, D. (1996). Post-collision Interactions in the Auger Decay of the Ar L-shell. Physical Review A, 54(3), 2099-2106.
https://digitalscholarship.unlv.edu/chem_fac_articles/42